use https instead of cleartext http where possiblehttp-to-https

The following domains all offer https, so use it:

 - creativecommons.org
 - cr.yp.to
 - cryptojedi.org
 - crypto.stanford.edu
 - csrc.nist.gov
 - donate.fsf.org
 - ed25519.cr.yp.to
 - eprint.iacr.org
 - git.savannah.gnu.org
 - gnu.org
 - graphics.stanford.edu
 - info.isl.ntt.co.jp
 - lists.gnu.org
 - lists.gnupg.org
 - people.csail.mit.edu
 - shiftleft.org
 - software.intel.com
 - tools.ietf.org
 - web.archive.org
 - web.cs.ucdavis.edu
 - www.calcurco.cat
 - www.columbia.edu
 - www.cs.tau.ac.il
 - www.cs.technion.ac.il
 - www.cs.ucdavis.edu
 - www.g10code.com
 - www.gnu.org
 - www.gnupg.org
 - www.ii.uib.no
 - www.intel.com
 - www.larc.usp.br

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>

234 files changed, 306 insertions, 306 deletions

diff --git a/LICENSES b/LICENSES
index f6733a69..8f953e2c 100644
--- a/LICENSES
+++ b/LICENSES
@@ -148,9 +148,9 @@ with any binary distributions derived from the GNU C Library.
 
 #+begin_quote
   OCB is covered by several patents but may be used freely by most
-  software.  See http://web.cs.ucdavis.edu/~rogaway/ocb/license.htm .
+  software.  See https://web.cs.ucdavis.edu/~rogaway/ocb/license.htm .
   In particular license 1 is suitable for Libgcrypt: See
-  http://web.cs.ucdavis.edu/~rogaway/ocb/license1.pdf for the full
+  https://web.cs.ucdavis.edu/~rogaway/ocb/license1.pdf for the full
   license document; it basically says:
 
     License 1 — License for Open-Source Software Implementations of OCB
diff --git a/Makefile.am b/Makefile.am
index 7fa4fa4d..a647ccee 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -14,7 +14,7 @@
 # GNU Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this program; if not, see <http://www.gnu.org/licenses/>.
+# License along with this program; if not, see <https://www.gnu.org/licenses/>.
 # SPDX-License-Identifier: LGPL-2.1-or-later
 
 # Location of the released tarball archives.  Note that this is an
diff --git a/NEWS b/NEWS
index aa58fda8..3c241723 100644
--- a/NEWS
+++ b/NEWS
@@ -323,7 +323,7 @@ Noteworthy changes in version 1.7.0 (2016-04-15)  [C21/A1/R0]
      backward compatibility. [from 1.6.2]
 
    - Use ciphertext blinding for Elgamal decryption [CVE-2014-3591].
-     See http://www.cs.tau.ac.il/~tromer/radioexp/ for details.
+     See https://www.cs.tau.ac.il/~tromer/radioexp/ for details.
      [from 1.6.3]
 
    - Fixed data-dependent timing variations in modular exponentiation
@@ -341,7 +341,7 @@ Noteworthy changes in version 1.7.0 (2016-04-15)  [C21/A1/R0]
      due to hardware failures. [from 1.6.4]
 
    - Mitigate side-channel attack on ECDH with Weierstrass curves
-     [CVE-2015-7511].  See http://www.cs.tau.ac.IL/~tromer/ecdh/ for
+     [CVE-2015-7511].  See https://www.cs.tau.ac.il/~tromer/ecdh/ for
      details. [from 1.6.5]
 
  * Internal changes:
@@ -440,7 +440,7 @@ Noteworthy changes in version 1.6.0 (2013-12-16) [C20/A0/R0]
  * Added support for the SCRYPT algorithm.
 
  * Mitigated the Yarom/Falkner flush+reload side-channel attack on RSA
-   secret keys.  See <http://eprint.iacr.org/2013/448> [CVE-2013-4242].
+   secret keys.  See <https://eprint.iacr.org/2013/448> [CVE-2013-4242].
 
  * Added support for Deterministic DSA as per RFC-6979.
 
diff --git a/build-aux/compile b/build-aux/compile
index 531136b0..52f8f943 100755
--- a/build-aux/compile
+++ b/build-aux/compile
@@ -17,7 +17,7 @@ scriptversion=2012-10-14.11; # UTC
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
diff --git a/build-aux/config.guess b/build-aux/config.guess
index c4bd827a..4d4d3701 100755
--- a/build-aux/config.guess
+++ b/build-aux/config.guess
@@ -15,7 +15,7 @@ timestamp='2016-05-15'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -27,7 +27,7 @@ timestamp='2016-05-15'
 # Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
 #
 # You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
 #
 # Please send patches to <config-patches@gnu.org>.
 
@@ -1415,9 +1415,9 @@ This script (version $timestamp), has failed to recognize the
 operating system you are using. If your script is old, overwrite
 config.guess and config.sub with the latest versions from:
 
-  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+  https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
 and
-  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+  https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
 
 If $0 has already been updated, send the following data and any
 information you think might be pertinent to config-patches@gnu.org to
diff --git a/build-aux/config.sub b/build-aux/config.sub
index 9feb73bf..1948c6e2 100755
--- a/build-aux/config.sub
+++ b/build-aux/config.sub
@@ -15,7 +15,7 @@ timestamp='2016-06-20'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -33,7 +33,7 @@ timestamp='2016-06-20'
 # Otherwise, we print the canonical config type on stdout and succeed.
 
 # You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
 
 # This file is supposed to be the same for all GNU packages
 # and recognize all the CPU types, system types and aliases
diff --git a/build-aux/depcomp b/build-aux/depcomp
index 4ebd5b3a..f0a474cd 100755
--- a/build-aux/depcomp
+++ b/build-aux/depcomp
@@ -16,7 +16,7 @@ scriptversion=2013-05-30.07; # UTC
 # GNU General Public License for more details.
 
 # You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
diff --git a/build-aux/ltmain.sh b/build-aux/ltmain.sh
index 859599aa..77963a93 100644
--- a/build-aux/ltmain.sh
+++ b/build-aux/ltmain.sh
@@ -24,7 +24,7 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with GNU Libtool; see the file COPYING.  If not, a copy
-# can be downloaded from http://www.gnu.org/licenses/gpl.html,
+# can be downloaded from https://www.gnu.org/licenses/gpl.html,
 # or obtained by writing to the Free Software Foundation, Inc.,
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
@@ -75,8 +75,8 @@
 #         autoconf:	$autoconf_version
 #
 # Report bugs to <bug-libtool@gnu.org>.
-# GNU libtool home page: <http://www.gnu.org/software/libtool/>.
-# General help using GNU software: <http://www.gnu.org/gethelp/>.
+# GNU libtool home page: <https://www.gnu.org/software/libtool/>.
+# General help using GNU software: <https://www.gnu.org/gethelp/>.
 
 PROGRAM=libtool
 PACKAGE=libtool
diff --git a/build-aux/mdate-sh b/build-aux/mdate-sh
index b3719cf7..39f48bb1 100755
--- a/build-aux/mdate-sh
+++ b/build-aux/mdate-sh
@@ -17,7 +17,7 @@ scriptversion=2010-08-21.06; # UTC
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
diff --git a/build-aux/missing b/build-aux/missing
index db98974f..43e37bd5 100755
--- a/build-aux/missing
+++ b/build-aux/missing
@@ -17,7 +17,7 @@ scriptversion=2013-10-28.13; # UTC
 # GNU General Public License for more details.
 
 # You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -103,7 +103,7 @@ fi
 
 perl_URL=http://www.perl.org/
 flex_URL=http://flex.sourceforge.net/
-gnu_software_URL=http://www.gnu.org/software
+gnu_software_URL=https://www.gnu.org/software
 
 program_details ()
 {
diff --git a/build-aux/texinfo.tex b/build-aux/texinfo.tex
index 5a17f979..abcbe140 100644
--- a/build-aux/texinfo.tex
+++ b/build-aux/texinfo.tex
@@ -21,7 +21,7 @@
 %
 % You should have received a copy of the GNU General Public License
 % along with this texinfo.tex file; see the file COPYING.  If not,
-% see <http://www.gnu.org/licenses/>.
+% see <https://www.gnu.org/licenses/>.
 %
 % As a special exception, when this file is read by TeX when processing
 % a Texinfo source document, you may use the result without
@@ -29,7 +29,7 @@
 %
 % Please try the latest version of texinfo.tex before submitting bug
 % reports; you can get the latest version from:
-%   http://www.gnu.org/software/texinfo/ (the Texinfo home page), or
+%   https://www.gnu.org/software/texinfo/ (the Texinfo home page), or
 %   ftp://tug.org/tex/texinfo.tex
 %     (and all CTAN mirrors, see http://www.ctan.org).
 % The texinfo.tex in any given distribution could well be out
@@ -55,7 +55,7 @@
 % extent.  You can get the existing language-specific files from the
 % full Texinfo distribution.
 %
-% The GNU Texinfo home page is http://www.gnu.org/software/texinfo.
+% The GNU Texinfo home page is https://www.gnu.org/software/texinfo.
 
 
 \message{Loading texinfo [version \texinfoversion]:}
diff --git a/cipher/Makefile.am b/cipher/Makefile.am
index 2acd7cb3..efcf8f90 100644
--- a/cipher/Makefile.am
+++ b/cipher/Makefile.am
@@ -15,7 +15,7 @@
 # GNU Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this program; if not, see <http://www.gnu.org/licenses/>.
+# License along with this program; if not, see <https://www.gnu.org/licenses/>.
 
 # Process this file with automake to produce Makefile.in
 
diff --git a/cipher/asm-common-aarch64.h b/cipher/asm-common-aarch64.h
index 4ffc1b71..f712ad15 100644
--- a/cipher/asm-common-aarch64.h
+++ b/cipher/asm-common-aarch64.h
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_ASM_COMMON_AARCH64_H
diff --git a/cipher/asm-common-amd64.h b/cipher/asm-common-amd64.h
index 9d4a028a..0b130a06 100644
--- a/cipher/asm-common-amd64.h
+++ b/cipher/asm-common-amd64.h
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_ASM_COMMON_AMD64_H
diff --git a/cipher/asm-poly1305-amd64.h b/cipher/asm-poly1305-amd64.h
index 3f99ea3e..e39b56bf 100644
--- a/cipher/asm-poly1305-amd64.h
+++ b/cipher/asm-poly1305-amd64.h
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_ASM_POLY1305_AMD64_H
diff --git a/cipher/bithelp.h b/cipher/bithelp.h
index 26ef7c35..eceeee2d 100644
--- a/cipher/bithelp.h
+++ b/cipher/bithelp.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 #ifndef GCRYPT_BITHELP_H
 #define GCRYPT_BITHELP_H
@@ -86,7 +86,7 @@ _gcry_ctz (unsigned int x)
   return x? __builtin_ctz (x) : 8 * sizeof (x);
 #else
   /* See
-   * http://graphics.stanford.edu/~seander/bithacks.html#ZerosOnRightModLookup
+   * https://graphics.stanford.edu/~seander/bithacks.html#ZerosOnRightModLookup
    */
   static const unsigned char mod37[] =
     {
diff --git a/cipher/blake2.c b/cipher/blake2.c
index f2bf49e5..6c1acc23 100644
--- a/cipher/blake2.c
+++ b/cipher/blake2.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* The code is based on public-domain/CC0 BLAKE2 reference implementation
diff --git a/cipher/blake2b-amd64-avx2.S b/cipher/blake2b-amd64-avx2.S
index 08c816cd..1ee416e7 100644
--- a/cipher/blake2b-amd64-avx2.S
+++ b/cipher/blake2b-amd64-avx2.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* The code is based on public-domain/CC0 BLAKE2 reference implementation
diff --git a/cipher/blake2s-amd64-avx.S b/cipher/blake2s-amd64-avx.S
index 19837326..b322c518 100644
--- a/cipher/blake2s-amd64-avx.S
+++ b/cipher/blake2s-amd64-avx.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* The code is based on public-domain/CC0 BLAKE2 reference implementation
diff --git a/cipher/blowfish-amd64.S b/cipher/blowfish-amd64.S
index bdb361d7..5231d333 100644
--- a/cipher/blowfish-amd64.S
+++ b/cipher/blowfish-amd64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef __x86_64
diff --git a/cipher/blowfish-arm.S b/cipher/blowfish-arm.S
index b30aa31f..3a6f28db 100644
--- a/cipher/blowfish-arm.S
+++ b/cipher/blowfish-arm.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/bufhelp.h b/cipher/bufhelp.h
index fa5b2e8e..5ef2564d 100644
--- a/cipher/bufhelp.h
+++ b/cipher/bufhelp.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 #ifndef GCRYPT_BUFHELP_H
 #define GCRYPT_BUFHELP_H
diff --git a/cipher/camellia-aarch64.S b/cipher/camellia-aarch64.S
index f4980862..65c05c0d 100644
--- a/cipher/camellia-aarch64.S
+++ b/cipher/camellia-aarch64.S
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include "asm-common-aarch64.h"
diff --git a/cipher/camellia-aesni-avx-amd64.S b/cipher/camellia-aesni-avx-amd64.S
index e16d4f61..5036b1aa 100644
--- a/cipher/camellia-aesni-avx-amd64.S
+++ b/cipher/camellia-aesni-avx-amd64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef __x86_64
diff --git a/cipher/camellia-aesni-avx2-amd64.S b/cipher/camellia-aesni-avx2-amd64.S
index cc01c774..9bcc2a12 100644
--- a/cipher/camellia-aesni-avx2-amd64.S
+++ b/cipher/camellia-aesni-avx2-amd64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef __x86_64
diff --git a/cipher/camellia-arm.S b/cipher/camellia-arm.S
index a3d87d11..70c3dbb6 100644
--- a/cipher/camellia-arm.S
+++ b/cipher/camellia-arm.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/camellia-glue.c b/cipher/camellia-glue.c
index 4b0989ea..4e6fc988 100644
--- a/cipher/camellia-glue.c
+++ b/cipher/camellia-glue.c
@@ -1026,7 +1026,7 @@ selftest(void)
 }
 
 /* These oids are from
-   <http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications_oid.html>,
+   <https://info.isl.ntt.co.jp/crypt/eng/camellia/specifications_oid.html>,
    retrieved May 1, 2007. */
 
 static gcry_cipher_oid_spec_t camellia128_oids[] =
diff --git a/cipher/camellia.c b/cipher/camellia.c
index e7085a7e..3461ad4e 100644
--- a/cipher/camellia.c
+++ b/cipher/camellia.c
@@ -14,12 +14,12 @@
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
  * Algorithm Specification
- *  http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html
+ *  https://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html
  */
 
 #include <config.h>
diff --git a/cipher/cast5-amd64.S b/cipher/cast5-amd64.S
index 82f67890..e8c4b7a9 100644
--- a/cipher/cast5-amd64.S
+++ b/cipher/cast5-amd64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef __x86_64
diff --git a/cipher/cast5-arm.S b/cipher/cast5-arm.S
index 76ddd2e3..e0e3a332 100644
--- a/cipher/cast5-arm.S
+++ b/cipher/cast5-arm.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/chacha20-aarch64.S b/cipher/chacha20-aarch64.S
index 07b4bb5c..cde3519e 100644
--- a/cipher/chacha20-aarch64.S
+++ b/cipher/chacha20-aarch64.S
@@ -15,12 +15,12 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
  * Based on D. J. Bernstein reference implementation at
- * http://cr.yp.to/chacha.html:
+ * https://cr.yp.to/chacha.html:
  *
  * chacha-regs.c version 20080118
  * D. J. Bernstein
diff --git a/cipher/chacha20-amd64-avx2.S b/cipher/chacha20-amd64-avx2.S
index de6263b6..cb655c48 100644
--- a/cipher/chacha20-amd64-avx2.S
+++ b/cipher/chacha20-amd64-avx2.S
@@ -15,12 +15,12 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
  * Based on D. J. Bernstein reference implementation at
- * http://cr.yp.to/chacha.html:
+ * https://cr.yp.to/chacha.html:
  *
  * chacha-regs.c version 20080118
  * D. J. Bernstein
diff --git a/cipher/chacha20-amd64-ssse3.S b/cipher/chacha20-amd64-ssse3.S
index 6bbf12fc..2cd85e94 100644
--- a/cipher/chacha20-amd64-ssse3.S
+++ b/cipher/chacha20-amd64-ssse3.S
@@ -15,12 +15,12 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
  * Based on D. J. Bernstein reference implementation at
- * http://cr.yp.to/chacha.html:
+ * https://cr.yp.to/chacha.html:
  *
  * chacha-regs.c version 20080118
  * D. J. Bernstein
diff --git a/cipher/chacha20-armv7-neon.S b/cipher/chacha20-armv7-neon.S
index 33a43df1..c35486dc 100644
--- a/cipher/chacha20-armv7-neon.S
+++ b/cipher/chacha20-armv7-neon.S
@@ -15,12 +15,12 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
  * Based on D. J. Bernstein reference implementation at
- * http://cr.yp.to/chacha.html:
+ * https://cr.yp.to/chacha.html:
  *
  * chacha-regs.c version 20080118
  * D. J. Bernstein
diff --git a/cipher/chacha20.c b/cipher/chacha20.c
index 48fff625..13f1d215 100644
--- a/cipher/chacha20.c
+++ b/cipher/chacha20.c
@@ -14,15 +14,15 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  * For a description of the algorithm, see:
- *   http://cr.yp.to/chacha.html
+ *   https://cr.yp.to/chacha.html
  */
 
 /*
  * Based on D. J. Bernstein reference implementation at
- * http://cr.yp.to/chacha.html:
+ * https://cr.yp.to/chacha.html:
  *
  * chacha-regs.c version 20080118
  * D. J. Bernstein
diff --git a/cipher/cipher-aeswrap.c b/cipher/cipher-aeswrap.c
index c182657e..017d3304 100644
--- a/cipher/cipher-aeswrap.c
+++ b/cipher/cipher-aeswrap.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-cbc.c b/cipher/cipher-cbc.c
index d4df1e72..fbb5e790 100644
--- a/cipher/cipher-cbc.c
+++ b/cipher/cipher-cbc.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-ccm.c b/cipher/cipher-ccm.c
index dcb268d0..c6a0ec9b 100644
--- a/cipher/cipher-ccm.c
+++ b/cipher/cipher-ccm.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-cfb.c b/cipher/cipher-cfb.c
index 012c6c13..3c05ba67 100644
--- a/cipher/cipher-cfb.c
+++ b/cipher/cipher-cfb.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-cmac.c b/cipher/cipher-cmac.c
index 4efd1e19..6e518823 100644
--- a/cipher/cipher-cmac.c
+++ b/cipher/cipher-cmac.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-ctr.c b/cipher/cipher-ctr.c
index 5f0afc2f..eff708c6 100644
--- a/cipher/cipher-ctr.c
+++ b/cipher/cipher-ctr.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-eax.c b/cipher/cipher-eax.c
index 08f815a9..f76e016f 100644
--- a/cipher/cipher-eax.c
+++ b/cipher/cipher-eax.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-gcm-armv7-neon.S b/cipher/cipher-gcm-armv7-neon.S
index a801a5e5..fec6151f 100644
--- a/cipher/cipher-gcm-armv7-neon.S
+++ b/cipher/cipher-gcm-armv7-neon.S
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-gcm-armv8-aarch32-ce.S b/cipher/cipher-gcm-armv8-aarch32-ce.S
index 1de66a16..b7804c8b 100644
--- a/cipher/cipher-gcm-armv8-aarch32-ce.S
+++ b/cipher/cipher-gcm-armv8-aarch32-ce.S
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-gcm-armv8-aarch64-ce.S b/cipher/cipher-gcm-armv8-aarch64-ce.S
index b0c2cccc..9005896a 100644
--- a/cipher/cipher-gcm-armv8-aarch64-ce.S
+++ b/cipher/cipher-gcm-armv8-aarch64-ce.S
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include "asm-common-aarch64.h"
diff --git a/cipher/cipher-gcm-intel-pclmul.c b/cipher/cipher-gcm-intel-pclmul.c
index 8e109ba3..a182b3a8 100644
--- a/cipher/cipher-gcm-intel-pclmul.c
+++ b/cipher/cipher-gcm-intel-pclmul.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-gcm.c b/cipher/cipher-gcm.c
index 11f119aa..7e3e26bd 100644
--- a/cipher/cipher-gcm.c
+++ b/cipher/cipher-gcm.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-internal.h b/cipher/cipher-internal.h
index 47b7b6f9..5db82e00 100644
--- a/cipher/cipher-internal.h
+++ b/cipher/cipher-internal.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef G10_CIPHER_INTERNAL_H
diff --git a/cipher/cipher-ocb.c b/cipher/cipher-ocb.c
index b146d058..c1d1bf4f 100644
--- a/cipher/cipher-ocb.c
+++ b/cipher/cipher-ocb.c
@@ -14,13 +14,13 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  *
  * OCB is covered by several patents but may be used freely by most
- * software.  See http://web.cs.ucdavis.edu/~rogaway/ocb/license.htm .
+ * software.  See https://web.cs.ucdavis.edu/~rogaway/ocb/license.htm .
  * In particular license 1 is suitable for Libgcrypt: See
- * http://web.cs.ucdavis.edu/~rogaway/ocb/license1.pdf for the full
+ * https://web.cs.ucdavis.edu/~rogaway/ocb/license1.pdf for the full
  * license document; it basically says:
  *
  *   License 1 — License for Open-Source Software Implementations of OCB
diff --git a/cipher/cipher-ofb.c b/cipher/cipher-ofb.c
index a3fd2993..ce858b9c 100644
--- a/cipher/cipher-ofb.c
+++ b/cipher/cipher-ofb.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-poly1305.c b/cipher/cipher-poly1305.c
index bb475236..51635d08 100644
--- a/cipher/cipher-poly1305.c
+++ b/cipher/cipher-poly1305.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-selftest.c b/cipher/cipher-selftest.c
index eb3614ad..f7131b2e 100644
--- a/cipher/cipher-selftest.c
+++ b/cipher/cipher-selftest.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher-selftest.h b/cipher/cipher-selftest.h
index a435080f..ad0ab5b7 100644
--- a/cipher/cipher-selftest.h
+++ b/cipher/cipher-selftest.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef G10_SELFTEST_HELP_H
diff --git a/cipher/cipher-xts.c b/cipher/cipher-xts.c
index 0522a271..3a00fc23 100644
--- a/cipher/cipher-xts.c
+++ b/cipher/cipher-xts.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/cipher.c b/cipher/cipher.c
index ab3e4240..bc48cd69 100644
--- a/cipher/cipher.c
+++ b/cipher/cipher.c
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/crc-armv8-aarch64-ce.S b/cipher/crc-armv8-aarch64-ce.S
index 060abdfe..cb2ae9e3 100644
--- a/cipher/crc-armv8-aarch64-ce.S
+++ b/cipher/crc-armv8-aarch64-ce.S
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include "asm-common-aarch64.h"
diff --git a/cipher/des-amd64.S b/cipher/des-amd64.S
index a211dac3..f5208700 100644
--- a/cipher/des-amd64.S
+++ b/cipher/des-amd64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef __x86_64
diff --git a/cipher/dsa-common.c b/cipher/dsa-common.c
index 6f2c2f9e..fed338fd 100644
--- a/cipher/dsa-common.c
+++ b/cipher/dsa-common.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/dsa.c b/cipher/dsa.c
index 22d8d782..d5a979aa 100644
--- a/cipher/dsa.c
+++ b/cipher/dsa.c
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/ecc-common.h b/cipher/ecc-common.h
index 748e6dba..7a9d93e2 100644
--- a/cipher/ecc-common.h
+++ b/cipher/ecc-common.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_ECC_COMMON_H
diff --git a/cipher/ecc-curves.c b/cipher/ecc-curves.c
index 971afbed..65613d96 100644
--- a/cipher/ecc-curves.c
+++ b/cipher/ecc-curves.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/ecc-ecdsa.c b/cipher/ecc-ecdsa.c
index 140e8c09..8c03eb30 100644
--- a/cipher/ecc-ecdsa.c
+++ b/cipher/ecc-ecdsa.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/ecc-eddsa.c b/cipher/ecc-eddsa.c
index 89b708a0..1e80f554 100644
--- a/cipher/ecc-eddsa.c
+++ b/cipher/ecc-eddsa.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
@@ -562,7 +562,7 @@ _gcry_ecc_eddsa_genkey (ECC_secret_key *sk, elliptic_curve_t *E, mpi_ec_t ctx,
  *   Lange, Peter Schwabe, Bo-Yin Yang. High-speed high-security
  *   signatures.  Journal of Cryptographic Engineering 2 (2012), 77-89.
  *   Document ID: a1a62a2f76d23f65d622484ddd09caf8.
- *   URL: http://cr.yp.to/papers.html#ed25519. Date: 2011.09.26.
+ *   URL: https://cr.yp.to/papers.html#ed25519. Date: 2011.09.26.
  *
  * Despite that this function requires the specification of a hash
  * algorithm, we only support what has been specified by the paper.
diff --git a/cipher/ecc-gost.c b/cipher/ecc-gost.c
index a34fa084..41aac2d6 100644
--- a/cipher/ecc-gost.c
+++ b/cipher/ecc-gost.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/ecc-misc.c b/cipher/ecc-misc.c
index 41debe40..e0ad77ea 100644
--- a/cipher/ecc-misc.c
+++ b/cipher/ecc-misc.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/ecc.c b/cipher/ecc.c
index 06010ef2..bafd7c17 100644
--- a/cipher/ecc.c
+++ b/cipher/ecc.c
@@ -15,12 +15,12 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* This code is originally based on the Patch 0.1.6 for the gnupg
    1.4.x branch as retrieved on 2007-03-21 from
-   http://www.calcurco.cat/eccGnuPG/src/gnupg-1.4.6-ecc0.2.0beta1.diff.bz2
+   https://www.calcurco.cat/eccGnuPG/src/gnupg-1.4.6-ecc0.2.0beta1.diff.bz2
    The original authors are:
      Written by
       Sergi Blanch i Torne <d4372211 at alumnes.eup.udl.es>,
@@ -201,7 +201,7 @@ nist_generate_key (ECC_secret_key *sk, elliptic_curve_t *E, mpi_ec_t ctx,
     log_fatal ("ecgen: Failed to get affine coordinates for %s\n", "Q");
 
   /* We want the Q=(x,y) be a "compliant key" in terms of the
-   * http://tools.ietf.org/html/draft-jivsov-ecc-compact, which simply
+   * https://tools.ietf.org/html/draft-jivsov-ecc-compact, which simply
    * means that we choose either Q=(x,y) or -Q=(x,p-y) such that we
    * end up with the min(y,p-y) as the y coordinate.  Such a public
    * key allows the most efficient compression: y can simply be
diff --git a/cipher/elgamal.c b/cipher/elgamal.c
index 4eb52d62..da8f7c0e 100644
--- a/cipher/elgamal.c
+++ b/cipher/elgamal.c
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  * For a description of the algorithm, see:
  *   Bruce Schneier: Applied Cryptography. John Wiley & Sons, 1996.
diff --git a/cipher/gost-s-box.c b/cipher/gost-s-box.c
index 7aa54447..b63b5b0a 100644
--- a/cipher/gost-s-box.c
+++ b/cipher/gost-s-box.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <stdio.h>
diff --git a/cipher/gost.h b/cipher/gost.h
index 025119c9..545d14f7 100644
--- a/cipher/gost.h
+++ b/cipher/gost.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef _GCRY_GOST_H
diff --git a/cipher/gost28147.c b/cipher/gost28147.c
index 1b8ab7ae..c8eff275 100644
--- a/cipher/gost28147.c
+++ b/cipher/gost28147.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* GOST 28147-89 defines several modes of encryption:
diff --git a/cipher/gostr3411-94.c b/cipher/gostr3411-94.c
index d9746275..3601567e 100644
--- a/cipher/gostr3411-94.c
+++ b/cipher/gostr3411-94.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 
diff --git a/cipher/hash-common.c b/cipher/hash-common.c
index 74675d49..4f3c7789 100644
--- a/cipher/hash-common.c
+++ b/cipher/hash-common.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/hash-common.h b/cipher/hash-common.h
index 0b3ade11..1ea4401a 100644
--- a/cipher/hash-common.h
+++ b/cipher/hash-common.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_HASH_COMMON_H
diff --git a/cipher/hmac-tests.c b/cipher/hmac-tests.c
index 78d260a1..12f84ce9 100644
--- a/cipher/hmac-tests.c
+++ b/cipher/hmac-tests.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/cipher/kdf-internal.h b/cipher/kdf-internal.h
index 7079860e..8a36ad61 100644
--- a/cipher/kdf-internal.h
+++ b/cipher/kdf-internal.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_KDF_INTERNAL_H
diff --git a/cipher/kdf.c b/cipher/kdf.c
index 27f57896..d856478b 100644
--- a/cipher/kdf.c
+++ b/cipher/kdf.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/keccak-armv7-neon.S b/cipher/keccak-armv7-neon.S
index 0bec8d50..9081a4f6 100644
--- a/cipher/keccak-armv7-neon.S
+++ b/cipher/keccak-armv7-neon.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
@@ -38,7 +38,7 @@
 @
 @ To the extent possible under law, the implementer has waived all copyright
 @ and related or neighboring rights to the source code in this file.
-@ http://creativecommons.org/publicdomain/zero/1.0/
+@ https://creativecommons.org/publicdomain/zero/1.0/
 
 .text
 
diff --git a/cipher/keccak.c b/cipher/keccak.c
index 24963f12..258419ae 100644
--- a/cipher/keccak.c
+++ b/cipher/keccak.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 
diff --git a/cipher/keccak_permute_32.h b/cipher/keccak_permute_32.h
index 1ce42a42..a541699f 100644
--- a/cipher/keccak_permute_32.h
+++ b/cipher/keccak_permute_32.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* The code is based on public-domain/CC0 "keccakc1024/simple32bi/
diff --git a/cipher/keccak_permute_64.h b/cipher/keccak_permute_64.h
index b28c871e..cd6ac66a 100644
--- a/cipher/keccak_permute_64.h
+++ b/cipher/keccak_permute_64.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* The code is based on public-domain/CC0 "keccakc1024/simple/Keccak-simple.c"
diff --git a/cipher/mac-cmac.c b/cipher/mac-cmac.c
index e42a764d..9b14e832 100644
--- a/cipher/mac-cmac.c
+++ b/cipher/mac-cmac.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/mac-gmac.c b/cipher/mac-gmac.c
index 9bc86d97..7a476f7c 100644
--- a/cipher/mac-gmac.c
+++ b/cipher/mac-gmac.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/mac-hmac.c b/cipher/mac-hmac.c
index e488d03a..870c8478 100644
--- a/cipher/mac-hmac.c
+++ b/cipher/mac-hmac.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/mac-internal.h b/cipher/mac-internal.h
index 03f5b8da..de1dc201 100644
--- a/cipher/mac-internal.h
+++ b/cipher/mac-internal.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/mac-poly1305.c b/cipher/mac-poly1305.c
index b80f87db..6841986f 100644
--- a/cipher/mac-poly1305.c
+++ b/cipher/mac-poly1305.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/mac.c b/cipher/mac.c
index 0bbac3e4..9e96d4a6 100644
--- a/cipher/mac.c
+++ b/cipher/mac.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/md.c b/cipher/md.c
index 6ca390ff..446879b1 100644
--- a/cipher/md.c
+++ b/cipher/md.c
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/poly1305-internal.h b/cipher/poly1305-internal.h
index 19cee5f6..a648f0e5 100644
--- a/cipher/poly1305-internal.h
+++ b/cipher/poly1305-internal.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef G10_POLY1305_INTERNAL_H
diff --git a/cipher/poly1305.c b/cipher/poly1305.c
index cded7cb2..35922ee3 100644
--- a/cipher/poly1305.c
+++ b/cipher/poly1305.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/pubkey-internal.h b/cipher/pubkey-internal.h
index b8167c77..49edb17d 100644
--- a/cipher/pubkey-internal.h
+++ b/cipher/pubkey-internal.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_PUBKEY_INTERNAL_H
diff --git a/cipher/pubkey-util.c b/cipher/pubkey-util.c
index ae0e1c46..70a0ad1c 100644
--- a/cipher/pubkey-util.c
+++ b/cipher/pubkey-util.c
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/pubkey.c b/cipher/pubkey.c
index 4c07e33b..7cec133e 100644
--- a/cipher/pubkey.c
+++ b/cipher/pubkey.c
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/rijndael-aarch64.S b/cipher/rijndael-aarch64.S
index e77dd4e0..1c0ed11d 100644
--- a/cipher/rijndael-aarch64.S
+++ b/cipher/rijndael-aarch64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include "asm-common-aarch64.h"
diff --git a/cipher/rijndael-aesni.c b/cipher/rijndael-aesni.c
index a2a62abd..ec3b0909 100644
--- a/cipher/rijndael-aesni.c
+++ b/cipher/rijndael-aesni.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/rijndael-amd64.S b/cipher/rijndael-amd64.S
index 3dcaa856..a341f1fe 100644
--- a/cipher/rijndael-amd64.S
+++ b/cipher/rijndael-amd64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef __x86_64
diff --git a/cipher/rijndael-arm.S b/cipher/rijndael-arm.S
index e680c817..90f4554c 100644
--- a/cipher/rijndael-arm.S
+++ b/cipher/rijndael-arm.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/rijndael-armv8-aarch32-ce.S b/cipher/rijndael-armv8-aarch32-ce.S
index 66440bd4..7e54a1ea 100644
--- a/cipher/rijndael-armv8-aarch32-ce.S
+++ b/cipher/rijndael-armv8-aarch32-ce.S
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/rijndael-armv8-aarch64-ce.S b/cipher/rijndael-armv8-aarch64-ce.S
index 3af29e0d..2f51ff17 100644
--- a/cipher/rijndael-armv8-aarch64-ce.S
+++ b/cipher/rijndael-armv8-aarch64-ce.S
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include "asm-common-aarch64.h"
diff --git a/cipher/rijndael-armv8-ce.c b/cipher/rijndael-armv8-ce.c
index 6e46830e..2281f233 100644
--- a/cipher/rijndael-armv8-ce.c
+++ b/cipher/rijndael-armv8-ce.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/cipher/rijndael-internal.h b/cipher/rijndael-internal.h
index 876d55fe..99c839cb 100644
--- a/cipher/rijndael-internal.h
+++ b/cipher/rijndael-internal.h
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef G10_RIJNDAEL_INTERNAL_H
diff --git a/cipher/rijndael-padlock.c b/cipher/rijndael-padlock.c
index 234751b9..8d808d96 100644
--- a/cipher/rijndael-padlock.c
+++ b/cipher/rijndael-padlock.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/rijndael-ssse3-amd64-asm.S b/cipher/rijndael-ssse3-amd64-asm.S
index 8124eb21..10e9f9a4 100644
--- a/cipher/rijndael-ssse3-amd64-asm.S
+++ b/cipher/rijndael-ssse3-amd64-asm.S
@@ -14,11 +14,11 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  *
  * The code is based on the public domain library libvpaes version 0.5
- * available at http://crypto.stanford.edu/vpaes/ and which carries
+ * available at https://crypto.stanford.edu/vpaes/ and which carries
  * this notice:
  *
  *     libvpaes: constant-time SSSE3 AES encryption and decryption.
@@ -31,7 +31,7 @@
  *
  *     This is an implementation of AES following my paper,
  *       "Accelerating AES with Vector Permute Instructions
- *       CHES 2009; http://shiftleft.org/papers/vector_aes/
+ *       CHES 2009; https://shiftleft.org/papers/vector_aes/
  */
 
 #if defined(__x86_64__)
diff --git a/cipher/rijndael-ssse3-amd64.c b/cipher/rijndael-ssse3-amd64.c
index 0c1ae6e6..7c6b417a 100644
--- a/cipher/rijndael-ssse3-amd64.c
+++ b/cipher/rijndael-ssse3-amd64.c
@@ -14,11 +14,11 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  *
  * The code is based on the public domain library libvpaes version 0.5
- * available at http://crypto.stanford.edu/vpaes/ and which carries
+ * available at https://crypto.stanford.edu/vpaes/ and which carries
  * this notice:
  *
  *     libvpaes: constant-time SSSE3 AES encryption and decryption.
@@ -31,7 +31,7 @@
  *
  *     This is an implementation of AES following my paper,
  *       "Accelerating AES with Vector Permute Instructions"
- *       CHES 2009; http://shiftleft.org/papers/vector_aes/
+ *       CHES 2009; https://shiftleft.org/papers/vector_aes/
  */
 
 #include <config.h>
diff --git a/cipher/rijndael-tables.h b/cipher/rijndael-tables.h
index 83594700..a2851aca 100644
--- a/cipher/rijndael-tables.h
+++ b/cipher/rijndael-tables.h
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* To keep the actual implementation at a readable size we use this
diff --git a/cipher/rijndael.c b/cipher/rijndael.c
index 1001b1d5..50687132 100644
--- a/cipher/rijndael.c
+++ b/cipher/rijndael.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *******************************************************************
  * The code here is based on the optimized implementation taken from
  * http://www.esat.kuleuven.ac.be/~rijmen/rijndael/ on Oct 2, 2000,
@@ -33,7 +33,7 @@
  *------------------------------------------
  *
  * The SP800-38a document is available at:
- *   http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
+ *   https://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
  *
  */
 
diff --git a/cipher/rsa-common.c b/cipher/rsa-common.c
index 29b7bc81..4bd31f5b 100644
--- a/cipher/rsa-common.c
+++ b/cipher/rsa-common.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/rsa.c b/cipher/rsa.c
index 575ea949..fefb35f7 100644
--- a/cipher/rsa.c
+++ b/cipher/rsa.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* This code uses an algorithm protected by U.S. Patent #4,405,829
diff --git a/cipher/salsa20-amd64.S b/cipher/salsa20-amd64.S
index ae8f2715..4c7c3a38 100644
--- a/cipher/salsa20-amd64.S
+++ b/cipher/salsa20-amd64.S
@@ -15,12 +15,12 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
  * Based on public domain implementation by D. J. Bernstein at
- *  http://cr.yp.to/snuffle.html
+ *  https://cr.yp.to/snuffle.html
  */
 
 #ifdef __x86_64
diff --git a/cipher/salsa20-armv7-neon.S b/cipher/salsa20-armv7-neon.S
index 3686e3fa..eff10e87 100644
--- a/cipher/salsa20-armv7-neon.S
+++ b/cipher/salsa20-armv7-neon.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
@@ -27,7 +27,7 @@
 /*
  * Based on public domain implementation from SUPERCOP benchmarking framework
  * by Peter Schwabe and D. J. Bernstein. Paper about the implementation at:
- *   http://cryptojedi.org/papers/#neoncrypto
+ *   https://cryptojedi.org/papers/#neoncrypto
  */
 
 .syntax unified
diff --git a/cipher/salsa20.c b/cipher/salsa20.c
index 5c5e2b54..29f664e0 100644
--- a/cipher/salsa20.c
+++ b/cipher/salsa20.c
@@ -15,11 +15,11 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  * For a description of the algorithm, see:
- *   http://cr.yp.to/snuffle/spec.pdf
- *   http://cr.yp.to/snuffle/design.pdf
+ *   https://cr.yp.to/snuffle/spec.pdf
+ *   https://cr.yp.to/snuffle/design.pdf
  */
 
 /* The code is based on the code in Nettle
diff --git a/cipher/scrypt.c b/cipher/scrypt.c
index 13fd1cf0..c38c85a2 100644
--- a/cipher/scrypt.c
+++ b/cipher/scrypt.c
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* Adapted from the nettle, low-level cryptographics library for
diff --git a/cipher/serpent-armv7-neon.S b/cipher/serpent-armv7-neon.S
index adff6394..d308d542 100644
--- a/cipher/serpent-armv7-neon.S
+++ b/cipher/serpent-armv7-neon.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
@@ -98,7 +98,7 @@
  *   (New York, New York, USA), p. 317–329, National Institute of Standards and
  *   Technology, 2000.
  *
- * Paper is also available at: http://www.ii.uib.no/~osvik/pub/aes3.pdf
+ * Paper is also available at: https://www.ii.uib.no/~osvik/pub/aes3.pdf
  *
  */
 #define SBOX0(a0, a1, a2, a3, a4, b0, b1, b2, b3, b4) \
diff --git a/cipher/serpent-avx2-amd64.S b/cipher/serpent-avx2-amd64.S
index 9b17c2bd..5840ca13 100644
--- a/cipher/serpent-avx2-amd64.S
+++ b/cipher/serpent-avx2-amd64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef __x86_64
@@ -98,7 +98,7 @@
  *   (New York, New York, USA), p. 317–329, National Institute of Standards and
  *   Technology, 2000.
  *
- * Paper is also available at: http://www.ii.uib.no/~osvik/pub/aes3.pdf
+ * Paper is also available at: https://www.ii.uib.no/~osvik/pub/aes3.pdf
  *
  */
 #define SBOX0(r0, r1, r2, r3, r4) \
diff --git a/cipher/serpent-sse2-amd64.S b/cipher/serpent-sse2-amd64.S
index 39cba002..5c57daa0 100644
--- a/cipher/serpent-sse2-amd64.S
+++ b/cipher/serpent-sse2-amd64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef __x86_64
@@ -117,7 +117,7 @@
  *   (New York, New York, USA), p. 317–329, National Institute of Standards and
  *   Technology, 2000.
  *
- * Paper is also available at: http://www.ii.uib.no/~osvik/pub/aes3.pdf
+ * Paper is also available at: https://www.ii.uib.no/~osvik/pub/aes3.pdf
  *
  */
 #define SBOX0(r0, r1, r2, r3, r4) \
diff --git a/cipher/serpent.c b/cipher/serpent.c
index 71d843d0..4a20f7dd 100644
--- a/cipher/serpent.c
+++ b/cipher/serpent.c
@@ -233,7 +233,7 @@ static const char *serpent_test (void);
  *   (New York, New York, USA), p. 317–329, National Institute of Standards and
  *   Technology, 2000.
  *
- * Paper is also available at: http://www.ii.uib.no/~osvik/pub/aes3.pdf
+ * Paper is also available at: https://www.ii.uib.no/~osvik/pub/aes3.pdf
  *
  */
 
diff --git a/cipher/sha1-armv7-neon.S b/cipher/sha1-armv7-neon.S
index 61cc541c..3da106ac 100644
--- a/cipher/sha1-armv7-neon.S
+++ b/cipher/sha1-armv7-neon.S
@@ -17,7 +17,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/sha1-armv8-aarch32-ce.S b/cipher/sha1-armv8-aarch32-ce.S
index bf2b233b..f3771402 100644
--- a/cipher/sha1-armv8-aarch32-ce.S
+++ b/cipher/sha1-armv8-aarch32-ce.S
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/sha1-armv8-aarch64-ce.S b/cipher/sha1-armv8-aarch64-ce.S
index 223268ca..e2b35f95 100644
--- a/cipher/sha1-armv8-aarch64-ce.S
+++ b/cipher/sha1-armv8-aarch64-ce.S
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include "asm-common-aarch64.h"
diff --git a/cipher/sha1-avx-amd64.S b/cipher/sha1-avx-amd64.S
index 85876ad4..93b14003 100644
--- a/cipher/sha1-avx-amd64.S
+++ b/cipher/sha1-avx-amd64.S
@@ -17,13 +17,13 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
  * Intel SSSE3 accelerated SHA-1 implementation based on white paper:
  *  "Improving the Performance of the Secure Hash Algorithm (SHA-1)"
- *  http://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1
+ *  https://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1
  */
 
 #ifdef __x86_64__
diff --git a/cipher/sha1-avx-bmi2-amd64.S b/cipher/sha1-avx-bmi2-amd64.S
index 5dfcdca9..4867bfcc 100644
--- a/cipher/sha1-avx-bmi2-amd64.S
+++ b/cipher/sha1-avx-bmi2-amd64.S
@@ -17,13 +17,13 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
  * Intel SSSE3 accelerated SHA-1 implementation based on white paper:
  *  "Improving the Performance of the Secure Hash Algorithm (SHA-1)"
- *  http://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1
+ *  https://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1
  */
 
 #ifdef __x86_64__
diff --git a/cipher/sha1-avx2-bmi2-amd64.S b/cipher/sha1-avx2-bmi2-amd64.S
index 93863230..7c4e8e82 100644
--- a/cipher/sha1-avx2-bmi2-amd64.S
+++ b/cipher/sha1-avx2-bmi2-amd64.S
@@ -17,13 +17,13 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
  * Intel SSSE3 accelerated SHA-1 implementation based on white paper:
  *  "Improving the Performance of the Secure Hash Algorithm (SHA-1)"
- *  http://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1
+ *  https://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1
  */
 
 #ifdef __x86_64__
diff --git a/cipher/sha1-intel-shaext.c b/cipher/sha1-intel-shaext.c
index d7e3d4f8..5bf52f25 100644
--- a/cipher/sha1-intel-shaext.c
+++ b/cipher/sha1-intel-shaext.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/sha1-ssse3-amd64.S b/cipher/sha1-ssse3-amd64.S
index 7e32b0f4..ef6abd92 100644
--- a/cipher/sha1-ssse3-amd64.S
+++ b/cipher/sha1-ssse3-amd64.S
@@ -17,13 +17,13 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
  * Intel SSSE3 accelerated SHA-1 implementation based on white paper:
  *  "Improving the Performance of the Secure Hash Algorithm (SHA-1)"
- *  http://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1
+ *  https://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1
  */
 
 #ifdef __x86_64__
diff --git a/cipher/sha1.c b/cipher/sha1.c
index 23aceef3..b5d93fdc 100644
--- a/cipher/sha1.c
+++ b/cipher/sha1.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 
diff --git a/cipher/sha1.h b/cipher/sha1.h
index acf764ba..9be78735 100644
--- a/cipher/sha1.h
+++ b/cipher/sha1.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 #ifndef GCRY_SHA1_H
 #define GCRY_SHA1_H
diff --git a/cipher/sha256-armv8-aarch32-ce.S b/cipher/sha256-armv8-aarch32-ce.S
index 2b17ab1b..29d3f23f 100644
--- a/cipher/sha256-armv8-aarch32-ce.S
+++ b/cipher/sha256-armv8-aarch32-ce.S
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/sha256-armv8-aarch64-ce.S b/cipher/sha256-armv8-aarch64-ce.S
index f57cae29..3c53de1d 100644
--- a/cipher/sha256-armv8-aarch64-ce.S
+++ b/cipher/sha256-armv8-aarch64-ce.S
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include "asm-common-aarch64.h"
diff --git a/cipher/sha256-avx-amd64.S b/cipher/sha256-avx-amd64.S
index 77143ff0..f2d83876 100644
--- a/cipher/sha256-avx-amd64.S
+++ b/cipher/sha256-avx-amd64.S
@@ -37,7 +37,7 @@
 ; This code is described in an Intel White-Paper:
 ; "Fast SHA-256 Implementations on Intel Architecture Processors"
 ;
-; To find it, surf to http://www.intel.com/p/en_US/embedded
+; To find it, surf to https://www.intel.com/p/en_US/embedded
 ; and search for that title.
 ; The paper is expected to be released roughly at the end of April, 2012
 ;
diff --git a/cipher/sha256-avx2-bmi2-amd64.S b/cipher/sha256-avx2-bmi2-amd64.S
index 52be1a07..49a3994e 100644
--- a/cipher/sha256-avx2-bmi2-amd64.S
+++ b/cipher/sha256-avx2-bmi2-amd64.S
@@ -39,7 +39,7 @@
 ; This code is described in an Intel White-Paper:
 ; "Fast SHA-256 Implementations on Intel Architecture Processors"
 ;
-; To find it, surf to http://www.intel.com/p/en_US/embedded
+; To find it, surf to https://www.intel.com/p/en_US/embedded
 ; and search for that title.
 ; The paper is expected to be released roughly at the end of April, 2012
 ;
diff --git a/cipher/sha256-intel-shaext.c b/cipher/sha256-intel-shaext.c
index 2eda42d8..1f62a17d 100644
--- a/cipher/sha256-intel-shaext.c
+++ b/cipher/sha256-intel-shaext.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/sha256-ssse3-amd64.S b/cipher/sha256-ssse3-amd64.S
index 0fb94c1b..e1f235f7 100644
--- a/cipher/sha256-ssse3-amd64.S
+++ b/cipher/sha256-ssse3-amd64.S
@@ -37,7 +37,7 @@
 ; This code is described in an Intel White-Paper:
 ; "Fast SHA-256 Implementations on Intel Architecture Processors"
 ;
-; To find it, surf to http://www.intel.com/p/en_US/embedded
+; To find it, surf to https://www.intel.com/p/en_US/embedded
 ; and search for that title.
 ; The paper is expected to be released roughly at the end of April, 2012
 ;
diff --git a/cipher/sha256.c b/cipher/sha256.c
index 6c683348..216ae813 100644
--- a/cipher/sha256.c
+++ b/cipher/sha256.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 
diff --git a/cipher/sha512-arm.S b/cipher/sha512-arm.S
index 94ec0141..684d7261 100644
--- a/cipher/sha512-arm.S
+++ b/cipher/sha512-arm.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 #include <config.h>
 
diff --git a/cipher/sha512-armv7-neon.S b/cipher/sha512-armv7-neon.S
index 6596f2cd..2c804ca9 100644
--- a/cipher/sha512-armv7-neon.S
+++ b/cipher/sha512-armv7-neon.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/sha512.c b/cipher/sha512.c
index 1a808f88..5f1a9ba6 100644
--- a/cipher/sha512.c
+++ b/cipher/sha512.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 
diff --git a/cipher/sm3.c b/cipher/sm3.c
index b6f0ab28..7ed21838 100644
--- a/cipher/sm3.c
+++ b/cipher/sm3.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 
diff --git a/cipher/stribog.c b/cipher/stribog.c
index 26787247..5e7ca1e3 100644
--- a/cipher/stribog.c
+++ b/cipher/stribog.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/tiger.c b/cipher/tiger.c
index c78e3ac3..a03a00d5 100644
--- a/cipher/tiger.c
+++ b/cipher/tiger.c
@@ -18,7 +18,7 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 
-/* See http://www.cs.technion.ac.il/~biham/Reports/Tiger/  */
+/* See https://www.cs.technion.ac.il/~biham/Reports/Tiger/  */
 
 #include <config.h>
 #include <stdio.h>
diff --git a/cipher/twofish-aarch64.S b/cipher/twofish-aarch64.S
index 9f35b5cd..585151f0 100644
--- a/cipher/twofish-aarch64.S
+++ b/cipher/twofish-aarch64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include "asm-common-aarch64.h"
diff --git a/cipher/twofish-amd64.S b/cipher/twofish-amd64.S
index 3cb73431..f61e79c9 100644
--- a/cipher/twofish-amd64.S
+++ b/cipher/twofish-amd64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef __x86_64
diff --git a/cipher/twofish-arm.S b/cipher/twofish-arm.S
index 2e1da6cd..4f54f59a 100644
--- a/cipher/twofish-arm.S
+++ b/cipher/twofish-arm.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/cipher/twofish-avx2-amd64.S b/cipher/twofish-avx2-amd64.S
index 74cad355..8f0c0ef9 100644
--- a/cipher/twofish-avx2-amd64.S
+++ b/cipher/twofish-avx2-amd64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef __x86_64
diff --git a/cipher/whirlpool-sse2-amd64.S b/cipher/whirlpool-sse2-amd64.S
index 5631dc56..ea10cfde 100644
--- a/cipher/whirlpool-sse2-amd64.S
+++ b/cipher/whirlpool-sse2-amd64.S
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef __x86_64
diff --git a/cipher/whirlpool.c b/cipher/whirlpool.c
index d9b79cf1..0c472252 100644
--- a/cipher/whirlpool.c
+++ b/cipher/whirlpool.c
@@ -14,18 +14,18 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* This is an implementation of the Whirlpool hashing algorithm, which
    has been developed by Vincent Rijmen and Paulo S. L. M. Barreto;
    it's homepage is located at:
-   http://www.larc.usp.br/~pbarreto/WhirlpoolPage.html
+   https://www.larc.usp.br/~pbarreto/WhirlpoolPage.html
 
    The S-Boxes and the structure of the main transformation function,
    which implements an optimized version of the algorithm, is taken
    from the reference implementation available from
-   http://www.larc.usp.br/~pbarreto/whirlpool.zip
+   https://www.larc.usp.br/~pbarreto/whirlpool.zip
  */
 
 #include <config.h>
diff --git a/compat/Makefile.am b/compat/Makefile.am
index f0ddf34d..5f1f44dc 100644
--- a/compat/Makefile.am
+++ b/compat/Makefile.am
@@ -14,7 +14,7 @@
 # GNU Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this program; if not, see <http://www.gnu.org/licenses/>.
+# License along with this program; if not, see <https://www.gnu.org/licenses/>.
 
 # Process this file with automake to produce Makefile.in
 
diff --git a/compat/compat.c b/compat/compat.c
index 8b001de3..d43c06c7 100644
--- a/compat/compat.c
+++ b/compat/compat.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/compat/libcompat.h b/compat/libcompat.h
index b5a76491..fb0ae269 100644
--- a/compat/libcompat.h
+++ b/compat/libcompat.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_LIBCOMPAT_H
diff --git a/configure.ac b/configure.ac
index c9cbdefc..f4384dd9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,7 +16,7 @@
 # GNU Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this program; if not, see <http://www.gnu.org/licenses/>.
+# License along with this program; if not, see <https://www.gnu.org/licenses/>.
 
 # (Process this file with autoconf to produce a configure script.)
 AC_REVISION($Revision$)
@@ -156,7 +156,7 @@ dnl build tree. Other OS with the same issue might be added later.
 dnl
 dnl References:
 dnl   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=859732
-dnl   http://lists.gnu.org/archive/html/libtool/2017-05/msg00000.html
+dnl   https://lists.gnu.org/archive/html/libtool/2017-05/msg00000.html
 dnl
 dnl We need to check whether --disable-new-dtags is supported as alternate
 dnl linkers may be used (e.g., with tcc: CC=tcc LD=tcc).
diff --git a/doc/announce-1.4.txt b/doc/announce-1.4.txt
index 26e8bb33..63e1beb9 100644
--- a/doc/announce-1.4.txt
+++ b/doc/announce-1.4.txt
@@ -112,7 +112,7 @@ Noteworthy changes between 1.2.x and 1.4.0 are:
   
 
 Source code is hosted at the GnuPG FTP server and its mirrors as
-listed at http://www.gnupg.org/download/mirrors.html .  On the primary
+listed at https://www.gnupg.org/download/mirrors.html .  On the primary
 server the source file and its digital signatures is:
 
  ftp://ftp.gnupg.org/gcrypt/libgcrypt/libgcrypt-1.4.0.tar.bz2 (942k)
@@ -150,6 +150,6 @@ Happy hacking,
   Werner
 
 
-[1] See http://www.gnupg.org/documentation/mailing-lists.html .
+[1] See https://www.gnupg.org/documentation/mailing-lists.html .
 [2] Note that copyright assignments to the FSF are required.
-[3] See the service directory at http://www.gnupg.org/service.html .
+[3] See the service directory at https://www.gnupg.org/service.html .
diff --git a/doc/announce.txt b/doc/announce.txt
index 48c41bf4..9fc3a560 100644
--- a/doc/announce.txt
+++ b/doc/announce.txt
@@ -36,7 +36,7 @@ Noteworthy changes in version 1.4.3:
 
 
 Source code is hosted at the GnuPG FTP server and its mirrors as
-listed at http://www.gnupg.org/download/mirrors.html .  On the primary
+listed at https://www.gnupg.org/download/mirrors.html .  On the primary
 server the source file and its digital signatures is:
 
  ftp://ftp.gnupg.org/gcrypt/libgcrypt/libgcrypt-1.4.3.tar.bz2 (1062k)
@@ -84,8 +84,8 @@ Happy hacking,
 
 
 
-[1] See http://www.gnupg.org/documentation/mailing-lists.html .
+[1] See https://www.gnupg.org/documentation/mailing-lists.html .
 [2] Note that copyright assignments to the FSF are required.
-[3] For example see http://donate.fsf.org .
-[4] See the service directory at http://www.gnupg.org/service.html .
+[3] For example see https://donate.fsf.org .
+[4] See the service directory at https://www.gnupg.org/service.html .
 
diff --git a/doc/gcrypt.texi b/doc/gcrypt.texi
index d7bfa4c2..4873c5e7 100644
--- a/doc/gcrypt.texi
+++ b/doc/gcrypt.texi
@@ -508,7 +508,7 @@ Just like the function @code{gpg_strerror}, the function
 @anchor{enabling fips mode}
 Libgcrypt may be used in a FIPS 140-2 mode.  Note, that this does not
 necessary mean that Libcgrypt is an appoved FIPS 140-2 module.  Check the
-NIST database at @url{http://csrc.nist.gov/groups/STM/cmvp/} to see what
+NIST database at @url{https://csrc.nist.gov/groups/STM/cmvp/} to see what
 versions of Libgcrypt are approved.
 
 Because FIPS 140 has certain restrictions on the use of cryptography
@@ -1615,7 +1615,7 @@ A 128 bit cipher as described by RFC4269.
 @itemx GCRY_CIPHER_CAMELLIA256
 @cindex Camellia
 The Camellia cipher by NTT.  See
-@uref{http://info.isl.ntt.co.jp/@/crypt/@/eng/@/camellia/@/specifications.html}.
+@uref{https://info.isl.ntt.co.jp/@/crypt/@/eng/@/camellia/@/specifications.html}.
 
 @item GCRY_CIPHER_SALSA20
 @cindex Salsa20
@@ -1737,7 +1737,7 @@ of sequential data units.
 @cindex EAX, EAX mode
 EAX is an Authenticated Encryption with Associated Data (AEAD) block cipher
 mode by Bellare, Rogaway, and Wagner (see
-@uref{http://web.cs.ucdavis.edu/~rogaway/papers/eax.html}).
+@uref{https://web.cs.ucdavis.edu/~rogaway/papers/eax.html}).
 
 @end table
 
@@ -2137,7 +2137,7 @@ interface allows to add more algorithms in the future.
 
 Libgcrypt's API for asymmetric cryptography is based on data structures
 called S-expressions (see
-@uref{http://people.csail.mit.edu/@/rivest/@/sexp.html}) and does not work
+@uref{https://people.csail.mit.edu/@/rivest/@/sexp.html}) and does not work
 with contexts as most of the other building blocks of Libgcrypt do.
 
 @noindent
@@ -5651,7 +5651,7 @@ used.  These tarballs are available from several places with the master
 copy at @indicateurl{ftp://ftp.gnupg.org/gcrypt/libgcrypt/}.
 Announcements of new releases are posted to the
 @indicateurl{gnupg-announce@@gnupg.org} mailing list@footnote{See
-@url{http://www.gnupg.org/documentation/mailing-lists.en.html} for
+@url{https://www.gnupg.org/documentation/mailing-lists.en.html} for
 details.}.
 
 
diff --git a/libgcrypt.txt b/libgcrypt.txt
index afce70db..57218078 100644
--- a/libgcrypt.txt
+++ b/libgcrypt.txt
@@ -47,9 +47,9 @@ random numbers and a lot of supporting functions.
 
 %%GNU: yes
 
-%%web-page: http://www.gnupg.org
+%%web-page: https://www.gnupg.org
 
-%%support: Paid extension/consulting from http://www.g10code.com
+%%support: Paid extension/consulting from https://www.g10code.com
 
 %%doc: Programmer reference in Texinfo, Postscript, HTML included
 
@@ -70,7 +70,7 @@ Guyomarch, Simon Josefsson, Werner Koch, Moritz Schulte.
 
 %%rpm: 
 
-%%repository:  See http://www.gnupg.org/cvs-access.html
+%%repository:  See https://www.gnupg.org/cvs-access.html
 
 %%related:   
 
diff --git a/m4/libtool.m4 b/m4/libtool.m4
index 1d62b058..0cd84afb 100644
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -34,7 +34,7 @@ m4_define([_LT_COPYING], [dnl
 #
 # You should have received a copy of the GNU General Public License
 # along with GNU Libtool; see the file COPYING.  If not, a copy
-# can be downloaded from http://www.gnu.org/licenses/gpl.html, or
+# can be downloaded from https://www.gnu.org/licenses/gpl.html, or
 # obtained by writing to the Free Software Foundation, Inc.,
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 ])
diff --git a/mpi/aarch64/mpih-add1.S b/mpi/aarch64/mpih-add1.S
index bc62cf98..dce6564e 100644
--- a/mpi/aarch64/mpih-add1.S
+++ b/mpi/aarch64/mpih-add1.S
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/mpi/aarch64/mpih-mul1.S b/mpi/aarch64/mpih-mul1.S
index 92fcd141..608808a7 100644
--- a/mpi/aarch64/mpih-mul1.S
+++ b/mpi/aarch64/mpih-mul1.S
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/mpi/aarch64/mpih-mul2.S b/mpi/aarch64/mpih-mul2.S
index aa0e5a2d..1052add0 100644
--- a/mpi/aarch64/mpih-mul2.S
+++ b/mpi/aarch64/mpih-mul2.S
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/mpi/aarch64/mpih-mul3.S b/mpi/aarch64/mpih-mul3.S
index 5a40b354..71404b1b 100644
--- a/mpi/aarch64/mpih-mul3.S
+++ b/mpi/aarch64/mpih-mul3.S
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/mpi/aarch64/mpih-sub1.S b/mpi/aarch64/mpih-sub1.S
index 4f279a12..46078c2a 100644
--- a/mpi/aarch64/mpih-sub1.S
+++ b/mpi/aarch64/mpih-sub1.S
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/mpi/arm/mpih-add1.S b/mpi/arm/mpih-add1.S
index 09e8b3b2..8d6886f8 100644
--- a/mpi/arm/mpih-add1.S
+++ b/mpi/arm/mpih-add1.S
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  * Note: This code is heavily based on the GNU MP Library (version 4.2.1).
  */
diff --git a/mpi/arm/mpih-mul1.S b/mpi/arm/mpih-mul1.S
index c2e2854b..3ec57e28 100644
--- a/mpi/arm/mpih-mul1.S
+++ b/mpi/arm/mpih-mul1.S
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  * Note: This code is heavily based on the GNU MP Library (version 4.2.1).
  */
diff --git a/mpi/arm/mpih-mul2.S b/mpi/arm/mpih-mul2.S
index bce932e9..6efb8003 100644
--- a/mpi/arm/mpih-mul2.S
+++ b/mpi/arm/mpih-mul2.S
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  * Note: This code is heavily based on the GNU MP Library (version 4.2.1).
  */
diff --git a/mpi/arm/mpih-mul3.S b/mpi/arm/mpih-mul3.S
index 33326c78..980b39b2 100644
--- a/mpi/arm/mpih-mul3.S
+++ b/mpi/arm/mpih-mul3.S
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  * Note: This code is heavily based on the GNU MP Library (version 4.2.1).
  */
diff --git a/mpi/arm/mpih-sub1.S b/mpi/arm/mpih-sub1.S
index 593e3cde..88b4a335 100644
--- a/mpi/arm/mpih-sub1.S
+++ b/mpi/arm/mpih-sub1.S
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  * Note: This code is heavily based on the GNU MP Library (version 4.2.1).
  */
diff --git a/mpi/asm-common-aarch64.h b/mpi/asm-common-aarch64.h
index cf4bdb85..c86a5be3 100644
--- a/mpi/asm-common-aarch64.h
+++ b/mpi/asm-common-aarch64.h
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef MPI_ASM_COMMON_AARCH64_H
diff --git a/mpi/ec-ed25519.c b/mpi/ec-ed25519.c
index acfe2a69..831cc927 100644
--- a/mpi/ec-ed25519.c
+++ b/mpi/ec-ed25519.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/mpi/ec-internal.h b/mpi/ec-internal.h
index 759335aa..4eedebf3 100644
--- a/mpi/ec-internal.h
+++ b/mpi/ec-internal.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_EC_INTERNAL_H
diff --git a/mpi/ec.c b/mpi/ec.c
index 97afbfed..7977b409 100644
--- a/mpi/ec.c
+++ b/mpi/ec.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/mpi/mpi-inv.c b/mpi/mpi-inv.c
index ee6813b1..becdb581 100644
--- a/mpi/mpi-inv.c
+++ b/mpi/mpi-inv.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/mpi/mpi-pow.c b/mpi/mpi-pow.c
index 62b4a808..f6778dd9 100644
--- a/mpi/mpi-pow.c
+++ b/mpi/mpi-pow.c
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  * Note: This code is heavily based on the GNU MP Library.
  *	 Actually it's the same code with only minor changes in the
diff --git a/mpi/mpicoder.c b/mpi/mpicoder.c
index 4c63a147..8f059978 100644
--- a/mpi/mpicoder.c
+++ b/mpi/mpicoder.c
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/mpi/mpiutil.c b/mpi/mpiutil.c
index 9dde37fb..857160a0 100644
--- a/mpi/mpiutil.c
+++ b/mpi/mpiutil.c
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/random/Makefile.am b/random/Makefile.am
index 60af5b4a..701d55c4 100644
--- a/random/Makefile.am
+++ b/random/Makefile.am
@@ -14,7 +14,7 @@
 # GNU Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this program; if not, see <http://www.gnu.org/licenses/>.
+# License along with this program; if not, see <https://www.gnu.org/licenses/>.
 
 # Process this file with automake to produce Makefile.in
 
diff --git a/random/rand-internal.h b/random/rand-internal.h
index d99c6671..daf09f62 100644
--- a/random/rand-internal.h
+++ b/random/rand-internal.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef G10_RAND_INTERNAL_H
diff --git a/random/random-csprng.c b/random/random-csprng.c
index b06810a0..88f5ba0d 100644
--- a/random/random-csprng.c
+++ b/random/random-csprng.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/random/random-drbg.c b/random/random-drbg.c
index e0b4230e..8d662651 100644
--- a/random/random-drbg.c
+++ b/random/random-drbg.c
@@ -1970,7 +1970,7 @@ _gcry_rngdrbg_randomize (void *buffer, size_t length,
 
 /*
  * Test vectors from
- * http://csrc.nist.gov/groups/STM/cavp/documents/drbg/drbgtestvectors.zip
+ * https://csrc.nist.gov/groups/STM/cavp/documents/drbg/drbgtestvectors.zip
  */
 struct gcry_drbg_test_vector drbg_test_pr[] = {
   {
@@ -2283,7 +2283,7 @@ struct gcry_drbg_test_vector drbg_test_nopr[] = {
 
 /*
  * Tests implement the CAVS test approach as documented in
- * http://csrc.nist.gov/groups/STM/cavp/documents/drbg/DRBGVS.pdf
+ * https://csrc.nist.gov/groups/STM/cavp/documents/drbg/DRBGVS.pdf
  */
 
 /*
diff --git a/random/random-fips.c b/random/random-fips.c
index 3a641b25..6ba4e04a 100644
--- a/random/random-fips.c
+++ b/random/random-fips.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/random/random-system.c b/random/random-system.c
index 8b79511c..8e0dbe68 100644
--- a/random/random-system.c
+++ b/random/random-system.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/random/random.c b/random/random.c
index 9aab7893..54356016 100644
--- a/random/random.c
+++ b/random/random.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/random/rndhw.c b/random/rndhw.c
index 2829382c..b67f227e 100644
--- a/random/rndhw.c
+++ b/random/rndhw.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/random/rndlinux.c b/random/rndlinux.c
index 04e2a464..e9924335 100644
--- a/random/rndlinux.c
+++ b/random/rndlinux.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 
diff --git a/random/rndw32ce.c b/random/rndw32ce.c
index b485eef2..9cd19082 100644
--- a/random/rndw32ce.c
+++ b/random/rndw32ce.c
@@ -12,7 +12,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/src/Makefile.am b/src/Makefile.am
index 82d6e8a0..94c94e36 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -15,7 +15,7 @@
 # GNU Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
 
 
 ## Process this file with automake to produce Makefile.in
diff --git a/src/cipher-proto.h b/src/cipher-proto.h
index 97eb0d9a..7cd3d273 100644
--- a/src/cipher-proto.h
+++ b/src/cipher-proto.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* This file has been factored out from cipher.h so that it can be
diff --git a/src/context.c b/src/context.c
index f77878bc..68b4ecc2 100644
--- a/src/context.c
+++ b/src/context.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/src/context.h b/src/context.h
index 875de243..84614179 100644
--- a/src/context.h
+++ b/src/context.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_CONTEXT_H
diff --git a/src/dumpsexp.c b/src/dumpsexp.c
index 5aeb77df..cedf0625 100644
--- a/src/dumpsexp.c
+++ b/src/dumpsexp.c
@@ -12,7 +12,7 @@
  * General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
@@ -44,7 +44,7 @@ print_version (int with_help)
   fputs (MYVERSION_LINE "\n"
          "Copyright (C) 2010 Free Software Foundation, Inc.\n"
          "License GPLv3+: GNU GPL version 3 or later "
-         "<http://gnu.org/licenses/gpl.html>\n"
+         "<https://gnu.org/licenses/gpl.html>\n"
          "This is free software: you are free to change and redistribute it.\n"
          "There is NO WARRANTY, to the extent permitted by law.\n",
          stdout);
diff --git a/src/ec-context.h b/src/ec-context.h
index e48ef6f1..d95086a3 100644
--- a/src/ec-context.h
+++ b/src/ec-context.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_EC_CONTEXT_H
diff --git a/src/fips.c b/src/fips.c
index 1ac7f477..dde761f1 100644
--- a/src/fips.c
+++ b/src/fips.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/src/g10lib.h b/src/g10lib.h
index 694c2d83..cad7ac30 100644
--- a/src/g10lib.h
+++ b/src/g10lib.h
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* This header is to be used inside of libgcrypt in place of gcrypt.h.
diff --git a/src/gcrypt-int.h b/src/gcrypt-int.h
index 7934f148..42d1c838 100644
--- a/src/gcrypt-int.h
+++ b/src/gcrypt-int.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_GCRYPT_INT_H
diff --git a/src/gcrypt-testapi.h b/src/gcrypt-testapi.h
index 0417754f..78b88351 100644
--- a/src/gcrypt-testapi.h
+++ b/src/gcrypt-testapi.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/src/gcrypt.h.in b/src/gcrypt.h.in
index 8346ce15..be8d88f3 100644
--- a/src/gcrypt.h.in
+++ b/src/gcrypt.h.in
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  *
  * File: @configure_input@
  */
diff --git a/src/gcryptrnd.c b/src/gcryptrnd.c
index b13931b6..fded8f34 100644
--- a/src/gcryptrnd.c
+++ b/src/gcryptrnd.c
@@ -217,7 +217,7 @@ print_version (int with_help)
   fputs (MYVERSION_LINE "\n"
          "Copyright (C) 2006 Free Software Foundation, Inc.\n"
          "License GPLv2+: GNU GPL version 2 or later "
-         "<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>\n"
+         "<https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>\n"
          "This is free software: you are free to change and redistribute it.\n"
          "There is NO WARRANTY, to the extent permitted by law.\n",
          stdout);
diff --git a/src/getrandom.c b/src/getrandom.c
index f9bb5c0c..588766ac 100644
--- a/src/getrandom.c
+++ b/src/getrandom.c
@@ -80,7 +80,7 @@ print_version (int with_help)
   fputs (MYVERSION_LINE "\n"
          "Copyright (C) 2006 Free Software Foundation, Inc.\n"
          "License GPLv2+: GNU GPL version 2 or later "
-         "<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>\n"
+         "<https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>\n"
          "This is free software: you are free to change and redistribute it.\n"
          "There is NO WARRANTY, to the extent permitted by law.\n",
          stdout);
diff --git a/src/global.c b/src/global.c
index d82c680a..3f6fe08b 100644
--- a/src/global.c
+++ b/src/global.c
@@ -17,7 +17,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/src/hmac256.c b/src/hmac256.c
index 2d66079c..d6f3e0b4 100644
--- a/src/hmac256.c
+++ b/src/hmac256.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
@@ -687,7 +687,7 @@ main (int argc, char **argv)
           fputs ("hmac256 (Libgcrypt) " VERSION "\n"
                  "Copyright (C) 2008 Free Software Foundation, Inc.\n"
                  "License LGPLv2.1+: GNU LGPL version 2.1 or later "
-                 "<http://gnu.org/licenses/old-licenses/lgpl-2.1.html>\n"
+                 "<https://gnu.org/licenses/old-licenses/lgpl-2.1.html>\n"
                  "This is free software: you are free to change and "
                  "redistribute it.\n"
                  "There is NO WARRANTY, to the extent permitted by law.\n",
diff --git a/src/hmac256.h b/src/hmac256.h
index df28e727..525e0258 100644
--- a/src/hmac256.h
+++ b/src/hmac256.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef HMAC256_H
diff --git a/src/hwf-arm.c b/src/hwf-arm.c
index 1d19ea86..2bb3632d 100644
--- a/src/hwf-arm.c
+++ b/src/hwf-arm.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/src/hwf-common.h b/src/hwf-common.h
index 8f156b56..f68d9b4d 100644
--- a/src/hwf-common.h
+++ b/src/hwf-common.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef HWF_COMMON_H
diff --git a/src/hwf-x86.c b/src/hwf-x86.c
index 796e874f..386e9db6 100644
--- a/src/hwf-x86.c
+++ b/src/hwf-x86.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/src/hwfeatures.c b/src/hwfeatures.c
index e0816694..6edb22f0 100644
--- a/src/hwfeatures.c
+++ b/src/hwfeatures.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/src/misc.c b/src/misc.c
index 283e3a72..a94a921b 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/src/mpicalc.c b/src/mpicalc.c
index 11246f38..e8a8f432 100644
--- a/src/mpicalc.c
+++ b/src/mpicalc.c
@@ -12,7 +12,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
@@ -376,7 +376,7 @@ main (int argc, char **argv)
                   "libgcrypt %s\n"
                   "Copyright (C) 1997, 2013  Werner Koch\n"
                   "License LGPLv2.1+: GNU LGPL version 2.1 or later "
-                  "<http://gnu.org/licenses/old-licenses/lgpl-2.1.html>\n"
+                  "<https://gnu.org/licenses/old-licenses/lgpl-2.1.html>\n"
                   "This is free software: you are free to change and "
                   "redistribute it.\n"
                   "There is NO WARRANTY, to the extent permitted by law.\n"
diff --git a/src/secmem.c b/src/secmem.c
index b36c44f6..9e3e5cf3 100644
--- a/src/secmem.c
+++ b/src/secmem.c
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
@@ -154,7 +154,7 @@ ptr_into_pool_p (pooldesc_t *pool, const void *p)
 {
   /* We need to convert pointers to addresses.  This is required by
      C-99 6.5.8 to avoid undefined behaviour.  See also
-     http://lists.gnupg.org/pipermail/gcrypt-devel/2007-February/001102.html
+     https://lists.gnupg.org/pipermail/gcrypt-devel/2007-February/001102.html
   */
   uintptr_t p_addr    = (uintptr_t)p;
   uintptr_t pool_addr = (uintptr_t)pool->mem;
diff --git a/src/stdmem.c b/src/stdmem.c
index 04ce64fb..3632d95c 100644
--- a/src/stdmem.c
+++ b/src/stdmem.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/src/visibility.c b/src/visibility.c
index 44972a18..1959709e 100644
--- a/src/visibility.c
+++ b/src/visibility.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <config.h>
diff --git a/src/visibility.h b/src/visibility.h
index 9c9fa877..cee2b460 100644
--- a/src/visibility.h
+++ b/src/visibility.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GCRY_VISIBILITY_H
diff --git a/tests/basic.c b/tests/basic.c
index b0c292a0..c4d56df7 100644
--- a/tests/basic.c
+++ b/tests/basic.c
@@ -16,7 +16,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
@@ -707,7 +707,7 @@ check_ctr_cipher (void)
     } data[8];
   } tv[] =
     {
-      /* http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf */
+      /* https://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf */
       {	GCRY_CIPHER_AES,
 	"\x2b\x7e\x15\x16\x28\xae\xd2\xa6\xab\xf7\x15\x88\x09\xcf\x4f\x3c",
 	"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff",
@@ -1085,7 +1085,7 @@ check_cfb_cipher (void)
     data[MAX_DATA_LEN];
   } tv[] =
     {
-      /* http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf */
+      /* https://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf */
       { GCRY_CIPHER_AES, 0,
         "\x2b\x7e\x15\x16\x28\xae\xd2\xa6\xab\xf7\x15\x88\x09\xcf\x4f\x3c",
         "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
@@ -1363,7 +1363,7 @@ check_ofb_cipher (void)
     data[MAX_DATA_LEN];
   } tv[] =
     {
-      /* http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf */
+      /* https://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf */
       { GCRY_CIPHER_AES,
         "\x2b\x7e\x15\x16\x28\xae\xd2\xa6\xab\xf7\x15\x88\x09\xcf\x4f\x3c",
         "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
@@ -1609,7 +1609,7 @@ _check_gcm_cipher (unsigned int step)
     int should_fail;
   } tv[] =
     {
-      /* http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf */
+      /* https://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf */
       { GCRY_CIPHER_AES,
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 12,
@@ -2835,7 +2835,7 @@ _check_eax_cipher (unsigned int step)
     int should_fail;
   } tv[] =
     {
-      /* Test vectors from http://www.cs.ucdavis.edu/~rogaway/papers/eax.pdf */
+      /* Test vectors from https://www.cs.ucdavis.edu/~rogaway/papers/eax.pdf */
       { GCRY_CIPHER_AES,
         "\x23\x39\x52\xDE\xE4\xD5\xED\x5F\x9B\x9C\x6D\x6F\xF8\x0F\xF4\x78",
         "\x62\xEC\x67\xF9\xC3\xA4\xA4\x07\xFC\xB2\xA8\xC4\x90\x31\xA8\xB3", 16,
@@ -11077,7 +11077,7 @@ check_mac (void)
         "\x3a\xfe\x93\xb2\x81\x4f\x79\xf5\x00\x0f\xfc\x03\x66\xc2\x51\xe6",
         NULL, 16, 32 },
       /* CMAC AES and DES test vectors from
-         http://web.archive.org/web/20130930212819/http://csrc.nist.gov/publica\
+         https://web.archive.org/web/20130930212819/https://csrc.nist.gov/publica\
          tions/nistpubs/800-38B/Updated_CMAC_Examples.pdf */
       { GCRY_MAC_CMAC_AES,
         "",
@@ -11199,7 +11199,7 @@ check_mac (void)
       { GCRY_MAC_CMAC_3DES, "?", "????????????????????????",
         "\xc1\x38\x13\xb2\x31\x8f\x3a\xdf" },
       /* CMAC Camellia test vectors from
-         http://tools.ietf.org/html/draft-kato-ipsec-camellia-cmac96and128-05 */
+         https://tools.ietf.org/html/draft-kato-ipsec-camellia-cmac96and128-05 */
       { GCRY_MAC_CMAC_CAMELLIA,
         "",
         "\x2b\x7e\x15\x16\x28\xae\xd2\xa6\xab\xf7\x15\x88\x09\xcf\x4f\x3c",
@@ -11223,7 +11223,7 @@ check_mac (void)
         "\xc2\x69\x9a\x6e\xba\x55\xce\x9d\x93\x9a\x8a\x4e\x19\x46\x6e\xe9" },
       { GCRY_MAC_CMAC_CAMELLIA, "?", "????????????????????????????????",
         "\xba\x8a\x5a\x8d\xa7\x54\x26\x83\x3e\xb1\x20\xb5\x45\xd0\x9f\x4e" },
-      /* http://csrc.nist.gov/groups/STM/cavp/documents/mac/gcmtestvectors.zip */
+      /* https://csrc.nist.gov/groups/STM/cavp/documents/mac/gcmtestvectors.zip */
       { GCRY_MAC_GMAC_AES,
         "",
         "\x11\x75\x4c\xd7\x2a\xec\x30\x9b\xf5\x2f\x76\x87\x21\x2e\x89\x57",
@@ -11399,7 +11399,7 @@ check_mac (void)
         "\x13\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
         NULL,
         48, 32 },
-      /* from http://cr.yp.to/mac/poly1305-20050329.pdf */
+      /* from https://cr.yp.to/mac/poly1305-20050329.pdf */
       { GCRY_MAC_POLY1305,
         "\xf3\xf6",
         "\x85\x1f\xc4\x0c\x34\x67\xac\x0b\xe0\x5c\xc2\x04\x04\xf3\xf7\x00"
@@ -11432,7 +11432,7 @@ check_mac (void)
         "\x51\x54\xad\x0d\x2c\xb2\x6e\x01\x27\x4f\xc5\x11\x48\x49\x1f\x1b" },
       { GCRY_MAC_POLY1305, "?", "????????????????????????????????",
         "\xc3\x88\xce\x8a\x52\xd6\xe7\x21\x86\xfa\xaa\x5d\x2d\x16\xf9\xa3" },
-      /* from http://cr.yp.to/mac/poly1305-20050329.pdf */
+      /* from https://cr.yp.to/mac/poly1305-20050329.pdf */
       { GCRY_MAC_POLY1305_AES,
         "\xf3\xf6",
         "\xec\x07\x4c\x83\x55\x80\x74\x17\x01\x42\x5b\x62\x32\x35\xad\xd6"
diff --git a/tests/bench-slope.c b/tests/bench-slope.c
index 2ead3c9e..84171305 100644
--- a/tests/bench-slope.c
+++ b/tests/bench-slope.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/benchmark.c b/tests/benchmark.c
index 418f9291..15f57bb4 100644
--- a/tests/benchmark.c
+++ b/tests/benchmark.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/cavs_driver.pl b/tests/cavs_driver.pl
index bc93feb9..88bc2f72 100755
--- a/tests/cavs_driver.pl
+++ b/tests/cavs_driver.pl
@@ -723,7 +723,7 @@ sub fix_key_parity($) {
 
 ####################################################
 # DER/PEM utility functions
-# Cf. http://www.columbia.edu/~ariel/ssleay/layman.html
+# Cf. https://www.columbia.edu/~ariel/ssleay/layman.html
 
 # Convert unsigned integer to base256 bigint bytes
 # $1 integer
@@ -904,7 +904,7 @@ sub der_test($$) {
 }
 
 # Unit testing for the DER encoding functions
-# Examples from http://www.columbia.edu/~ariel/ssleay/layman.html
+# Examples from https://www.columbia.edu/~ariel/ssleay/layman.html
 # No input, no output. Dies if unit tests fail.
 sub der_unit_test {
 	## uncomment these if you want to test the test framework
diff --git a/tests/dsa-rfc6979.c b/tests/dsa-rfc6979.c
index 2cfa94a8..b2d3fe5d 100644
--- a/tests/dsa-rfc6979.c
+++ b/tests/dsa-rfc6979.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/fips186-dsa.c b/tests/fips186-dsa.c
index b5f0cf0b..6d5cc088 100644
--- a/tests/fips186-dsa.c
+++ b/tests/fips186-dsa.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/fipsdrv.c b/tests/fipsdrv.c
index 71554e23..b9c89df5 100644
--- a/tests/fipsdrv.c
+++ b/tests/fipsdrv.c
@@ -14,7 +14,7 @@
    GNU Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
-   License along with this program; if not, see <http://www.gnu.org/licenses/>.
+   License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/fipsrngdrv.c b/tests/fipsrngdrv.c
index d6023c7f..a795934d 100644
--- a/tests/fipsrngdrv.c
+++ b/tests/fipsrngdrv.c
@@ -14,7 +14,7 @@
    GNU Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
-   License along with this program; if not, see <http://www.gnu.org/licenses/>.
+   License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/gchash.c b/tests/gchash.c
index 83dc7b55..ae9ec8fb 100644
--- a/tests/gchash.c
+++ b/tests/gchash.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/genhashdata.c b/tests/genhashdata.c
index 138a534b..eac9b0dd 100644
--- a/tests/genhashdata.c
+++ b/tests/genhashdata.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* Results:
diff --git a/tests/hashtest.c b/tests/hashtest.c
index 33945949..f382f3bb 100644
--- a/tests/hashtest.c
+++ b/tests/hashtest.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/keygen.c b/tests/keygen.c
index 6b6a60a4..192e7b11 100644
--- a/tests/keygen.c
+++ b/tests/keygen.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/mpitests.c b/tests/mpitests.c
index 9b4a66c2..86ef6099 100644
--- a/tests/mpitests.c
+++ b/tests/mpitests.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/pkbench.c b/tests/pkbench.c
index e458b429..f8f5cf23 100644
--- a/tests/pkbench.c
+++ b/tests/pkbench.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/pkcs1v2.c b/tests/pkcs1v2.c
index b52bff81..1c191322 100644
--- a/tests/pkcs1v2.c
+++ b/tests/pkcs1v2.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/pubkey.c b/tests/pubkey.c
index fbb7bbb5..0a4bc292 100644
--- a/tests/pubkey.c
+++ b/tests/pubkey.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/rsacvt.c b/tests/rsacvt.c
index 3d832640..52d713a3 100644
--- a/tests/rsacvt.c
+++ b/tests/rsacvt.c
@@ -14,7 +14,7 @@
    GNU Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
-   License along with this program; if not, see <http://www.gnu.org/licenses/>.
+   License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 /* Input data format:
diff --git a/tests/stopwatch.h b/tests/stopwatch.h
index 696e3005..c5259d04 100644
--- a/tests/stopwatch.h
+++ b/tests/stopwatch.h
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 
diff --git a/tests/t-common.h b/tests/t-common.h
index 2040f099..99b96175 100644
--- a/tests/t-common.h
+++ b/tests/t-common.h
@@ -14,7 +14,7 @@
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <stdarg.h>
diff --git a/tests/t-convert.c b/tests/t-convert.c
index 121039c7..913fb257 100644
--- a/tests/t-convert.c
+++ b/tests/t-convert.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/t-cv25519.c b/tests/t-cv25519.c
index 8c4a53eb..c78383bf 100644
--- a/tests/t-cv25519.c
+++ b/tests/t-cv25519.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/t-ed25519.c b/tests/t-ed25519.c
index 73628a81..b6f313cf 100644
--- a/tests/t-ed25519.c
+++ b/tests/t-ed25519.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/t-ed25519.inp b/tests/t-ed25519.inp
index e13566f8..b40c85fe 100644
--- a/tests/t-ed25519.inp
+++ b/tests/t-ed25519.inp
@@ -1,6 +1,6 @@
 # t-ed25519.inp  - 1024 test data sets
 # This has been taken from
-#    http://ed25519.cr.yp.to/python/sign.input
+#    https://ed25519.cr.yp.to/python/sign.input
 # which distributed them as public domain.
 # For our use converted using this script:
 #    awk -F: 'BEGIN {n=1} { print "TST: " n; n++; \
diff --git a/tests/t-lock.c b/tests/t-lock.c
index 7e5732e0..f5378adf 100644
--- a/tests/t-lock.c
+++ b/tests/t-lock.c
@@ -14,7 +14,7 @@
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #if HAVE_CONFIG_H
diff --git a/tests/t-mpi-point.c b/tests/t-mpi-point.c
index f2378bff..8f945d90 100644
--- a/tests/t-mpi-point.c
+++ b/tests/t-mpi-point.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/t-secmem.c b/tests/t-secmem.c
index baf013d3..44910c15 100644
--- a/tests/t-secmem.c
+++ b/tests/t-secmem.c
@@ -14,7 +14,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/tests/t-sexp.c b/tests/t-sexp.c
index 2b33520f..696852c4 100644
--- a/tests/t-sexp.c
+++ b/tests/t-sexp.c
@@ -15,7 +15,7 @@
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * License along with this program; if not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifdef HAVE_CONFIG_H