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>
43 #ifdef GC_USE_HMAC_MD5
62 randomize (int level, char *data, size_t datalen)
72 device = NAME_OF_NONCE_DEVICE;
76 device = NAME_OF_PSEUDO_RANDOM_DEVICE;
80 device = NAME_OF_RANDOM_DEVICE;
84 fd = open (device, O_RDONLY);
86 return GC_RANDOM_ERROR;
92 tmp = read (fd, data, datalen);
96 int save_errno = errno;
99 return GC_RANDOM_ERROR;
104 while (len < datalen);
108 return GC_RANDOM_ERROR;
114 gc_nonce (char *data, size_t datalen)
116 return randomize (0, data, datalen);
120 gc_pseudo_random (char *data, size_t datalen)
122 return randomize (1, data, datalen);
126 gc_random (char *data, size_t datalen)
128 return randomize (2, data, datalen);
131 /* Memory allocation. */
134 gc_set_allocators (gc_malloc_t func_malloc,
135 gc_malloc_t secure_malloc,
136 gc_secure_check_t secure_check,
137 gc_realloc_t func_realloc, gc_free_t func_free)
145 gc_hash_buffer (Gc_hash hash, const void *in, size_t inlen, char *resbuf)
151 md5_buffer (in, inlen, resbuf);
156 return GC_INVALID_HASH;
164 gc_md5 (const void *in, size_t inlen, void *resbuf)
166 md5_buffer (in, inlen, resbuf);
171 #ifdef GC_USE_HMAC_MD5
173 gc_hmac_md5 (const void *key, size_t keylen,
174 const void *in, size_t inlen, char *resbuf)
176 hmac_md5 (key, keylen, in, inlen, resbuf);