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author | Jelmer Vernooij <jelmer@samba.org> | 2008-10-11 03:12:21 +0200 |
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committer | Jelmer Vernooij <jelmer@samba.org> | 2008-10-11 03:12:21 +0200 |
commit | 0fd0fc75c46b39a611c7f9a56081105714d73e36 (patch) | |
tree | b93ef5e67e49a3aa49c37e13df3d6222b2df7095 /source4/lib/crypto/hmacsha256.c | |
parent | 69d38a95c29498c0266cb98b911faa3e7240c787 (diff) | |
parent | 47f7ef8f39ba482a7d6578ab82c9e0670381c4f8 (diff) | |
download | samba-0fd0fc75c46b39a611c7f9a56081105714d73e36.tar.gz samba-0fd0fc75c46b39a611c7f9a56081105714d73e36.tar.bz2 samba-0fd0fc75c46b39a611c7f9a56081105714d73e36.zip |
Merge branch 'master' of ssh://git.samba.org/data/git/samba into selftest
Conflicts:
selftest/selftest.pl
Diffstat (limited to 'source4/lib/crypto/hmacsha256.c')
-rw-r--r-- | source4/lib/crypto/hmacsha256.c | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/source4/lib/crypto/hmacsha256.c b/source4/lib/crypto/hmacsha256.c deleted file mode 100644 index 6b0af9ee83..0000000000 --- a/source4/lib/crypto/hmacsha256.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - Unix SMB/CIFS implementation. - - Interface header: HMAC SHA-256 code - - Copyright (C) Andrew Tridgell 2008 - - based in hmacsha1.c which is: - Copyright (C) Stefan Metzmacher - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program 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 a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -/* - taken direct from rfc2202 implementation and modified for suitable use - */ - -#include "includes.h" -#include "lib/crypto/crypto.h" - -/*********************************************************************** - the rfc 2104/2202 version of hmac_sha256 initialisation. -***********************************************************************/ -_PUBLIC_ void hmac_sha256_init(const uint8_t *key, size_t key_len, struct HMACSHA256Context *ctx) -{ - int i; - uint8_t tk[SHA256_DIGEST_LENGTH]; - - /* if key is longer than 64 bytes reset it to key=HASH(key) */ - if (key_len > 64) - { - SHA256_CTX tctx; - - SHA256_Init(&tctx); - SHA256_Update(&tctx, key, key_len); - SHA256_Final(tk, &tctx); - - key = tk; - key_len = SHA256_DIGEST_LENGTH; - } - - /* start out by storing key in pads */ - ZERO_STRUCT(ctx->k_ipad); - ZERO_STRUCT(ctx->k_opad); - memcpy( ctx->k_ipad, key, key_len); - memcpy( ctx->k_opad, key, key_len); - - /* XOR key with ipad and opad values */ - for (i=0; i<64; i++) - { - ctx->k_ipad[i] ^= 0x36; - ctx->k_opad[i] ^= 0x5c; - } - - SHA256_Init(&ctx->ctx); - SHA256_Update(&ctx->ctx, ctx->k_ipad, 64); -} - -/*********************************************************************** - update hmac_sha256 "inner" buffer -***********************************************************************/ -_PUBLIC_ void hmac_sha256_update(const uint8_t *data, size_t data_len, struct HMACSHA256Context *ctx) -{ - SHA256_Update(&ctx->ctx, data, data_len); /* then text of datagram */ -} - -/*********************************************************************** - finish off hmac_sha256 "inner" buffer and generate outer one. -***********************************************************************/ -_PUBLIC_ void hmac_sha256_final(uint8_t digest[SHA256_DIGEST_LENGTH], struct HMACSHA256Context *ctx) -{ - SHA256_CTX ctx_o; - - SHA256_Final(digest, &ctx->ctx); - - SHA256_Init(&ctx_o); - SHA256_Update(&ctx_o, ctx->k_opad, 64); - SHA256_Update(&ctx_o, digest, SHA256_DIGEST_LENGTH); - SHA256_Final(digest, &ctx_o); -} |