1 /* gc-gl-common.c --- Common gnulib internal crypto interface functions
2 * Copyright (C) 2002, 2003, 2004, 2005 Simon Josefsson
4 * This file is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published
6 * by the Free Software Foundation; either version 2, or (at your
7 * option) any later version.
9 * This file is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this file; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 /* Note: This file is only built if GC uses internal functions. */
35 #include <sys/types.h>
46 #ifdef GC_USE_HMAC_MD5
65 randomize (int level, char *data, size_t datalen)
75 device = NAME_OF_NONCE_DEVICE;
79 device = NAME_OF_PSEUDO_RANDOM_DEVICE;
83 device = NAME_OF_RANDOM_DEVICE;
87 fd = open (device, O_RDONLY);
89 return GC_RANDOM_ERROR;
95 tmp = read (fd, data, datalen);
99 int save_errno = errno;
102 return GC_RANDOM_ERROR;
107 while (len < datalen);
111 return GC_RANDOM_ERROR;
117 gc_nonce (char *data, size_t datalen)
119 return randomize (0, data, datalen);
123 gc_pseudo_random (char *data, size_t datalen)
125 return randomize (1, data, datalen);
129 gc_random (char *data, size_t datalen)
131 return randomize (2, data, datalen);
134 /* Memory allocation. */
137 gc_set_allocators (gc_malloc_t func_malloc,
138 gc_malloc_t secure_malloc,
139 gc_secure_check_t secure_check,
140 gc_realloc_t func_realloc, gc_free_t func_free)
148 gc_hash_buffer (Gc_hash hash, const void *in, size_t inlen, char *resbuf)
154 md5_buffer (in, inlen, resbuf);
160 sha1_buffer (in, inlen, resbuf);
165 return GC_INVALID_HASH;
173 gc_md5 (const void *in, size_t inlen, void *resbuf)
175 md5_buffer (in, inlen, resbuf);
182 gc_sha1 (const void *in, size_t inlen, void *resbuf)
184 sha1_buffer (in, inlen, resbuf);
189 #ifdef GC_USE_HMAC_MD5
191 gc_hmac_md5 (const void *key, size_t keylen,
192 const void *in, size_t inlen, char *resbuf)
194 hmac_md5 (key, keylen, in, inlen, resbuf);
199 #ifdef GC_USE_HMAC_SHA1
201 gc_hmac_sha1 (const void *key, size_t keylen,
202 const void *in, size_t inlen, char *resbuf)
204 hmac_sha1 (key, keylen, in, inlen, resbuf);