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Diffstat (limited to 'source4/lib/hmacmd5.c')
| -rw-r--r-- | source4/lib/hmacmd5.c | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/source4/lib/hmacmd5.c b/source4/lib/hmacmd5.c deleted file mode 100644 index 8ca7dba841..0000000000 --- a/source4/lib/hmacmd5.c +++ /dev/null @@ -1,134 +0,0 @@ -/* - Unix SMB/CIFS implementation. - HMAC MD5 code for use in NTLMv2 - Copyright (C) Luke Kenneth Casson Leighton 1996-2000 - Copyright (C) Andrew Tridgell 1992-2000 - - 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 2 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, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -/* taken direct from rfc2104 implementation and modified for suitable use - * for ntlmv2. - */ - -#include "includes.h" - -/*********************************************************************** - the rfc 2104 version of hmac_md5 initialisation. -***********************************************************************/ -void hmac_md5_init_rfc2104(uchar* key, int key_len, HMACMD5Context *ctx) -{ - int i; - - /* if key is longer than 64 bytes reset it to key=MD5(key) */ - if (key_len > 64) - { - uchar tk[16]; - struct MD5Context tctx; - - MD5Init(&tctx); - MD5Update(&tctx, key, key_len); - MD5Final(tk, &tctx); - - key = tk; - key_len = 16; - } - - /* 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; - } - - MD5Init(&ctx->ctx); - MD5Update(&ctx->ctx, ctx->k_ipad, 64); -} - -/*********************************************************************** - the microsoft version of hmac_md5 initialisation. -***********************************************************************/ -void hmac_md5_init_limK_to_64(const uchar* key, int key_len, - HMACMD5Context *ctx) -{ - int i; - - /* if key is longer than 64 bytes truncate it */ - if (key_len > 64) - { - key_len = 64; - } - - /* 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; - } - - MD5Init(&ctx->ctx); - MD5Update(&ctx->ctx, ctx->k_ipad, 64); -} - -/*********************************************************************** - update hmac_md5 "inner" buffer -***********************************************************************/ -void hmac_md5_update(const uchar* text, int text_len, HMACMD5Context *ctx) -{ - MD5Update(&ctx->ctx, text, text_len); /* then text of datagram */ -} - -/*********************************************************************** - finish off hmac_md5 "inner" buffer and generate outer one. -***********************************************************************/ -void hmac_md5_final(uchar *digest, HMACMD5Context *ctx) - -{ - struct MD5Context ctx_o; - - MD5Final(digest, &ctx->ctx); - - MD5Init(&ctx_o); - MD5Update(&ctx_o, ctx->k_opad, 64); - MD5Update(&ctx_o, digest, 16); - MD5Final(digest, &ctx_o); -} - -/*********************************************************** - single function to calculate an HMAC MD5 digest from data. - use the microsoft hmacmd5 init method because the key is 16 bytes. -************************************************************/ -void hmac_md5(const uchar key[16], const uchar *data, int data_len, uchar* digest) -{ - HMACMD5Context ctx; - hmac_md5_init_limK_to_64(key, 16, &ctx); - if (data_len != 0) - { - hmac_md5_update(data, data_len, &ctx); - } - hmac_md5_final(digest, &ctx); -} - |