From e9551b12f8c17876a32e1cd075c83af3e7950980 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Sun, 8 Dec 2013 00:05:36 -0800 Subject: Use libcrypto's checksum implementations if available, for speed. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On commonly used platform libcrypto uses architecture-specific assembly code, which is significantly faster than the C code we were using. See Pádraig Brady's note in . Merge from gnulib, incorporating: 2013-12-07 md5, sha1, sha256, sha512: add gl_SET_CRYPTO_CHECK_DEFAULT 2013-12-07 md5, sha1, sha256, sha512: add 'auto', and set-default method 2013-12-04 include_next: minimize code duplication 2013-12-03 md5, sha1, sha256, sha512: support mandating use of openssl 2013-12-02 md5, sha1, sha256, sha512: use openssl routines if available * configure.ac (--without-all): Set with_openssl_default too. Use gl_SET_CRYPTO_CHECK_DEFAULT to default to 'auto'. (HAVE_LIB_CRYPTO): New var. Say whether Emacs is configured to use a crypto library. * lib/gl_openssl.h, m4/absolute-header.m4, m4/gl-openssl.m4: New files, copied from gnulib. * lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate. * lib/md5.c, lib/md5.h, lib/sha1.c, lib/sha1.h: * lib/sha256.c, lib/sha256.h, lib/sha512.c, lib/sha512.h: * m4/include_next.m4, m4/md5.m4, m4/sha1.m4, m4/sha256.m4, m4/sha512.m4: Update from gnulib. * src/Makefile.in (LIB_CRYPTO): New macro. (LIBES): Use it. --- lib/sha256.h | 30 +++++++++++++++++++++--------- 1 file changed, 21 insertions(+), 9 deletions(-) (limited to 'lib/sha256.h') diff --git a/lib/sha256.h b/lib/sha256.h index 7e6252285bb..6ee326b0466 100644 --- a/lib/sha256.h +++ b/lib/sha256.h @@ -21,10 +21,23 @@ # include # include +# if HAVE_OPENSSL_SHA256 +# include +# endif + # ifdef __cplusplus extern "C" { # endif +enum { SHA224_DIGEST_SIZE = 224 / 8 }; +enum { SHA256_DIGEST_SIZE = 256 / 8 }; + +# if HAVE_OPENSSL_SHA256 +# define GL_OPENSSL_NAME 224 +# include "gl_openssl.h" +# define GL_OPENSSL_NAME 256 +# include "gl_openssl.h" +# else /* Structure to save state of computation between the single steps. */ struct sha256_ctx { @@ -35,9 +48,6 @@ struct sha256_ctx uint32_t buffer[32]; }; -enum { SHA224_DIGEST_SIZE = 224 / 8 }; -enum { SHA256_DIGEST_SIZE = 256 / 8 }; - /* Initialize structure containing state of computation. */ extern void sha256_init_ctx (struct sha256_ctx *ctx); extern void sha224_init_ctx (struct sha256_ctx *ctx); @@ -71,12 +81,6 @@ extern void *sha256_read_ctx (const struct sha256_ctx *ctx, void *resbuf); extern void *sha224_read_ctx (const struct sha256_ctx *ctx, void *resbuf); -/* Compute SHA256 (SHA224) message digest for bytes read from STREAM. The - resulting message digest number will be written into the 32 (28) bytes - beginning at RESBLOCK. */ -extern int sha256_stream (FILE *stream, void *resblock); -extern int sha224_stream (FILE *stream, void *resblock); - /* Compute SHA256 (SHA224) message digest for LEN bytes beginning at BUFFER. The result is always in little endian byte order, so that a byte-wise output yields to the wanted ASCII representation of the message @@ -84,6 +88,14 @@ extern int sha224_stream (FILE *stream, void *resblock); extern void *sha256_buffer (const char *buffer, size_t len, void *resblock); extern void *sha224_buffer (const char *buffer, size_t len, void *resblock); +# endif +/* Compute SHA256 (SHA224) message digest for bytes read from STREAM. The + resulting message digest number will be written into the 32 (28) bytes + beginning at RESBLOCK. */ +extern int sha256_stream (FILE *stream, void *resblock); +extern int sha224_stream (FILE *stream, void *resblock); + + # ifdef __cplusplus } # endif -- cgit v1.2.1