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/*
chronyd/chronyc - Programs for keeping computer clocks accurate.
**********************************************************************
* Copyright (C) Miroslav Lichvar 2012
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
**********************************************************************
=======================================================================
Routines implementing crypto hashing using tomcrypt library.
*/
#include <tomcrypt.h>
#include "config.h"
#include "hash.h"
#include "util.h"
struct hash {
const char *name;
const char *int_name;
const struct ltc_hash_descriptor *desc;
};
static const struct hash hashes[] = {
{ "MD5", "md5", &md5_desc },
#ifdef LTC_RIPEMD128
{ "RMD128", "rmd128", &rmd128_desc },
#endif
#ifdef LTC_RIPEMD160
{ "RMD160", "rmd160", &rmd160_desc },
#endif
#ifdef LTC_RIPEMD256
{ "RMD256", "rmd256", &rmd256_desc },
#endif
#ifdef LTC_RIPEMD320
{ "RMD320", "rmd320", &rmd320_desc },
#endif
#ifdef LTC_SHA1
{ "SHA1", "sha1", &sha1_desc },
#endif
#ifdef LTC_SHA256
{ "SHA256", "sha256", &sha256_desc },
#endif
#ifdef LTC_SHA384
{ "SHA384", "sha384", &sha384_desc },
#endif
#ifdef LTC_SHA512
{ "SHA512", "sha512", &sha512_desc },
#endif
#ifdef LTC_SHA3
{ "SHA3-224", "sha3-224", &sha3_224_desc },
{ "SHA3-256", "sha3-256", &sha3_256_desc },
{ "SHA3-384", "sha3-384", &sha3_384_desc },
{ "SHA3-512", "sha3-512", &sha3_512_desc },
#endif
#ifdef LTC_TIGER
{ "TIGER", "tiger", &tiger_desc },
#endif
#ifdef LTC_WHIRLPOOL
{ "WHIRLPOOL", "whirlpool", &whirlpool_desc },
#endif
{ NULL, NULL, NULL }
};
int
HSH_GetHashId(const char *name)
{
int i, h;
for (i = 0; hashes[i].name; i++) {
if (!strcmp(name, hashes[i].name))
break;
}
if (!hashes[i].name)
return -1; /* not found */
h = find_hash(hashes[i].int_name);
if (h >= 0)
return h; /* already registered */
/* register and try again */
register_hash(hashes[i].desc);
return find_hash(hashes[i].int_name);
}
unsigned int
HSH_Hash(int id, const unsigned char *in1, unsigned int in1_len,
const unsigned char *in2, unsigned int in2_len,
unsigned char *out, unsigned int out_len)
{
unsigned char buf[MAX_HASH_LENGTH];
unsigned long len;
int r;
len = sizeof (buf);
if (in2)
r = hash_memory_multi(id, buf, &len,
in1, (unsigned long)in1_len,
in2, (unsigned long)in2_len, NULL, 0);
else
r = hash_memory(id, in1, in1_len, buf, &len);
if (r != CRYPT_OK)
return 0;
len = MIN(len, out_len);
memcpy(out, buf, len);
return len;
}
void
HSH_Finalise(void)
{
}
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