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author | Niels Möller <nisse@lysator.liu.se> | 2019-05-12 10:53:59 +0200 |
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committer | Niels Möller <nisse@lysator.liu.se> | 2019-05-12 10:53:59 +0200 |
commit | aa119b54e73609eb1fadf01e7679f0f81f8d9f98 (patch) | |
tree | cc9fb8c70bdd6f95bd0f9324dcf1b34c13dcba5e | |
parent | a1f6f7c992a8380cf08a539015fcb74e6ae27466 (diff) | |
download | nettle-delete-rsa_blind.tar.gz |
Delete deprecated functions _rsa_blind and _rsa_unblind.delete-rsa_blind
-rw-r--r-- | ChangeLog | 7 | ||||
-rw-r--r-- | Makefile.in | 3 | ||||
-rw-r--r-- | rsa-blind.c | 78 | ||||
-rw-r--r-- | rsa-internal.h | 10 |
4 files changed, 8 insertions, 90 deletions
@@ -1,3 +1,10 @@ +2019-05-12 Niels Möller <nisse@lysator.liu.se> + + * rsa-blind.c (_rsa_blind, _rsa_unblind): Delete file and + functions. RSA blinding is done differently, in rsa-sign-tr.c. + * rsa-internal.h: Delete declarations. + * Makefile.in (hogweed_SOURCES): Delete rsa-blind.c. + 2019-05-11 Niels Möller <nisse@lysator.liu.se> * NEWS: More updates for Nettle-3.5. diff --git a/Makefile.in b/Makefile.in index 440de9f7..1813b95a 100644 --- a/Makefile.in +++ b/Makefile.in @@ -158,8 +158,7 @@ hogweed_SOURCES = sexp.c sexp-format.c \ rsa-pss-sha512-sign-tr.c rsa-pss-sha512-verify.c \ rsa-encrypt.c rsa-decrypt.c \ rsa-sec-decrypt.c rsa-decrypt-tr.c \ - rsa-keygen.c rsa-blind.c \ - rsa2sexp.c sexp2rsa.c \ + rsa-keygen.c rsa2sexp.c sexp2rsa.c \ dsa.c dsa-compat.c dsa-compat-keygen.c dsa-gen-params.c \ dsa-sign.c dsa-verify.c dsa-keygen.c dsa-hash.c \ dsa-sha1-sign.c dsa-sha1-verify.c \ diff --git a/rsa-blind.c b/rsa-blind.c deleted file mode 100644 index 0deb9443..00000000 --- a/rsa-blind.c +++ /dev/null @@ -1,78 +0,0 @@ -/* rsa-blind.c - - RSA blinding. Used for resistance to timing-attacks. - - Copyright (C) 2001, 2012 Niels Möller, Nikos Mavrogiannopoulos - - This file is part of GNU Nettle. - - GNU Nettle is free software: you can redistribute it and/or - modify it under the terms of either: - - * the GNU Lesser General Public License as published by the Free - Software Foundation; either version 3 of the License, or (at your - option) any later version. - - or - - * the GNU General Public License as published by the Free - Software Foundation; either version 2 of the License, or (at your - option) any later version. - - or both in parallel, as here. - - GNU Nettle is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received copies of the GNU General Public License and - the GNU Lesser General Public License along with this program. If - not, see http://www.gnu.org/licenses/. -*/ - -#if HAVE_CONFIG_H -# include "config.h" -#endif - -#include "rsa.h" -#include "rsa-internal.h" - -#include "bignum.h" - -/* Blinds the c, by computing c *= r^e (mod n), for a random r. Also - returns the inverse (ri), for use by rsa_unblind. */ -void -_rsa_blind (const struct rsa_public_key *pub, - void *random_ctx, nettle_random_func *random, - mpz_t c, mpz_t ri) -{ - mpz_t r; - - mpz_init(r); - - /* c = c*(r^e) - * ri = r^(-1) - */ - do - { - nettle_mpz_random(r, random_ctx, random, pub->n); - /* invert r */ - } - while (!mpz_invert (ri, r, pub->n)); - - /* c = c*(r^e) mod n */ - mpz_powm_sec(r, r, pub->e, pub->n); - mpz_mul(c, c, r); - mpz_fdiv_r(c, c, pub->n); - - mpz_clear(r); -} - -/* c *= ri mod n */ -void -_rsa_unblind (const struct rsa_public_key *pub, mpz_t c, const mpz_t ri) -{ - mpz_mul(c, c, ri); - mpz_fdiv_r(c, c, pub->n); -} diff --git a/rsa-internal.h b/rsa-internal.h index b828e451..8028f07a 100644 --- a/rsa-internal.h +++ b/rsa-internal.h @@ -59,16 +59,6 @@ _rsa_verify_recover(const struct rsa_public_key *key, size_t _rsa_check_size(mpz_t n); -/* _rsa_blind and _rsa_unblind are deprecated, unused in the library, - and will likely be removed with the next ABI break. */ -void -_rsa_blind (const struct rsa_public_key *pub, - void *random_ctx, nettle_random_func *random, - mpz_t c, mpz_t ri) _NETTLE_ATTRIBUTE_DEPRECATED; -void -_rsa_unblind (const struct rsa_public_key *pub, mpz_t c, const mpz_t ri) - _NETTLE_ATTRIBUTE_DEPRECATED; - /* side-channel silent root computation */ mp_size_t _rsa_sec_compute_root_itch(const struct rsa_private_key *key); |