49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*
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* Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
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*/
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#include "mycrypt.h"
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int hash_memory(int hash, const unsigned char *data, unsigned long len, unsigned char *dst, unsigned long *outlen)
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{
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hash_state *md;
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int err;
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_ARGCHK(data != NULL);
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_ARGCHK(dst != NULL);
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_ARGCHK(outlen != NULL);
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if ((err = hash_is_valid(hash)) != CRYPT_OK) {
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return err;
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}
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if (*outlen < hash_descriptor[hash].hashsize) {
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return CRYPT_BUFFER_OVERFLOW;
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}
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md = XMALLOC(sizeof(hash_state));
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if (md == NULL) {
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return CRYPT_MEM;
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}
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hash_descriptor[hash].init(md);
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if ((err = hash_descriptor[hash].process(md, data, len)) != CRYPT_OK) {
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goto __ERR;
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}
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err = hash_descriptor[hash].done(md, dst);
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*outlen = hash_descriptor[hash].hashsize;
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__ERR:
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#ifdef CLEAN_STACK
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zeromem(md, sizeof(hash_state));
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#endif
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XFREE(md);
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return err;
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}
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