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/**
* @file hasher.c
*
* @brief Generic constructor for hasher_t.
*
*/
/*
* Copyright (C) 2005-2006 Martin Willi
* Copyright (C) 2005 Jan Hutter
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*/
#include "hasher.h"
#include <asn1/oid.h>
#include <crypto/hashers/sha1_hasher.h>
#include <crypto/hashers/sha2_hasher.h>
#include <crypto/hashers/md5_hasher.h>
ENUM(hash_algorithm_names, HASH_UNKNOWN, HASH_SHA512,
"HASH_UNKNOWN",
"HASH_MD2",
"HASH_MD5",
"HASH_SHA1",
"HASH_SHA256",
"HASH_SHA384",
"HASH_SHA512"
);
/*
* Described in header.
*/
hasher_t *hasher_create(hash_algorithm_t hash_algorithm)
{
switch (hash_algorithm)
{
case HASH_SHA1:
{
return (hasher_t*)sha1_hasher_create();
}
case HASH_SHA256:
case HASH_SHA384:
case HASH_SHA512:
{
return (hasher_t*)sha2_hasher_create(hash_algorithm);
}
case HASH_MD5:
{
return (hasher_t*)md5_hasher_create();
}
default:
return NULL;
}
}
/*
* Described in header.
*/
hash_algorithm_t hasher_algorithm_from_oid(int oid)
{
hash_algorithm_t algorithm;
switch (oid)
{
case OID_MD2:
case OID_MD2_WITH_RSA:
algorithm = HASH_MD2;
break;
case OID_MD5:
case OID_MD5_WITH_RSA:
algorithm = HASH_MD5;
break;
case OID_SHA1:
case OID_SHA1_WITH_RSA:
algorithm = HASH_SHA1;
break;
case OID_SHA256:
case OID_SHA256_WITH_RSA:
algorithm = HASH_SHA256;
break;
case OID_SHA384:
case OID_SHA384_WITH_RSA:
algorithm = HASH_SHA384;
break;
case OID_SHA512:
case OID_SHA512_WITH_RSA:
algorithm = HASH_SHA512;
break;
default:
algorithm = HASH_UNKNOWN;
}
return algorithm;
}
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