src/core/sipe-digest-openssl.c

   1 /**
   2  * @file sipe-digest-openssl.c
   3  *
   4  * pidgin-sipe
   5  *
   6  * Copyright (C) 2013-2016 SIPE Project <http://sipe.sourceforge.net/>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 /**
  24  * Digest routines implementation based on OpenSSL
  25  */
  26 #ifdef HAVE_CONFIG_H
  27 #include "config.h"
  28 #endif
  29
  30 #include <openssl/evp.h>
  31 #include <openssl/hmac.h>
  32 #if !(defined(HAVE_GSSAPI_ONLY) || defined(HAVE_SSPI))
  33 #include <openssl/md4.h>
  34 #endif
  35 #include <openssl/md5.h>
  36 #include <openssl/sha.h>
  37
  38 #include "glib.h"
  39
  40 #include "sipe-digest.h"
  41
  42 #if !(defined(HAVE_GSSAPI_ONLY) || defined(HAVE_SSPI))
  43 /* One-shot MD4 digest - only used by internal NTLMv2 implementation */
  44 void sipe_digest_md4(const guchar *data, gsize length, guchar *digest)
  45 {
  46         MD4(data, length, digest);
  47 }
  48 #endif
  49
  50 /* One-shot MD5/SHA-1 digests */
  51 void sipe_digest_md5(const guchar *data, gsize length, guchar *digest)
  52 {
  53         MD5(data, length, digest);
  54 }
  55
  56 void sipe_digest_sha1(const guchar *data, gsize length, guchar *digest)
  57 {
  58         SHA1(data, length, digest);
  59 }
  60
  61 /* One-shot HMAC(MD5/SHA-1) digests */
  62 void sipe_digest_hmac_md5(const guchar *key, gsize key_length,
  63                           const guchar *data, gsize data_length,
  64                           guchar *digest)
  65 {
  66         HMAC(EVP_md5(), key, key_length, data, data_length, digest, NULL);
  67 }
  68
  69 void sipe_digest_hmac_sha1(const guchar *key, gsize key_length,
  70                            const guchar *data, gsize data_length,
  71                            guchar *digest)
  72 {
  73         HMAC(EVP_sha1(), key, key_length, data, data_length, digest, NULL);
  74 }
  75
  76 /* Stream HMAC(SHA1) digest for file transfer */
  77 gpointer sipe_digest_ft_start(const guchar *sha1_digest)
  78 {
  79         HMAC_CTX *ctx = g_malloc(sizeof(HMAC_CTX));
  80         HMAC_CTX_init(ctx);
  81         /* used are only the first 16 bytes of the 20 byte SHA1 digest */
  82         HMAC_Init(ctx, sha1_digest, 16, EVP_sha1());
  83         return(ctx);
  84 }
  85
  86 void sipe_digest_ft_update(gpointer context, const guchar *data, gsize length)
  87 {
  88         HMAC_Update(context, data, length);
  89 }
  90
  91 void sipe_digest_ft_end(gpointer context, guchar *digest)
  92 {
  93         HMAC_Final(context, digest, NULL);
  94 }
  95
  96 void sipe_digest_ft_destroy(gpointer context)
  97 {
  98         HMAC_CTX_cleanup(context);
  99         g_free(context);
 100 }
 101
 102 /* Stream digests, e.g. for TLS */
 103 gpointer sipe_digest_md5_start(void)
 104 {
 105         MD5_CTX *ctx = g_malloc(sizeof(MD5_CTX));
 106         MD5_Init(ctx);
 107         return(ctx);
 108 }
 109
 110 void sipe_digest_md5_update(gpointer context, const guchar *data, gsize length)
 111 {
 112         MD5_Update(context, data, length);
 113 }
 114
 115 void sipe_digest_md5_end(gpointer context, guchar *digest)
 116 {
 117         /* save context to ensure this function can be called multiple times */
 118         MD5_CTX *orig_ctx = context;
 119         MD5_CTX saved_ctx = *orig_ctx;
 120         MD5_Final(digest, orig_ctx);
 121         *orig_ctx = saved_ctx;
 122 }
 123
 124 void sipe_digest_md5_destroy(gpointer context)
 125 {
 126         g_free(context);
 127 }
 128
 129 gpointer sipe_digest_sha1_start(void)
 130 {
 131         SHA_CTX *ctx = g_malloc(sizeof(SHA_CTX));
 132         SHA1_Init(ctx);
 133         return(ctx);
 134 }
 135
 136 void sipe_digest_sha1_update(gpointer context, const guchar *data, gsize length)
 137 {
 138         SHA1_Update(context, data, length);
 139 }
 140
 141 void sipe_digest_sha1_end(gpointer context, guchar *digest)
 142 {
 143         /* save context to ensure this function can be called multiple times */
 144         SHA_CTX *orig_ctx = context;
 145         SHA_CTX saved_ctx = *orig_ctx;
 146         SHA1_Final(digest, orig_ctx);
 147         *orig_ctx = saved_ctx;
 148 }
 149
 150 void sipe_digest_sha1_destroy(gpointer context)
 151 {
 152         g_free(context);
 153 }
 154
 155 /*
 156   Local Variables:
 157   mode: c
 158   c-file-style: "bsd"
 159   indent-tabs-mode: t
 160   tab-width: 8
 161   End:
 162 */