Botan  1.11.15
src/lib/pk_pad/hash_id/hash_id.h
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00001 /*
00002 * Hash Function Identification
00003 * (C) 1999-2007 Jack Lloyd
00004 *
00005 * Botan is released under the Simplified BSD License (see license.txt)
00006 */
00007 
00008 #ifndef BOTAN_HASHID_H__
00009 #define BOTAN_HASHID_H__
00010 
00011 #include <botan/secmem.h>
00012 #include <string>
00013 
00014 namespace Botan {
00015 
00016 /**
00017 * Return the PKCS #1 hash identifier
00018 * @see RFC 3447 section 9.2
00019 * @param hash_name the name of the hash function
00020 * @return byte sequence identifying the hash
00021 * @throw Invalid_Argument if the hash has no known PKCS #1 hash id
00022 */
00023 BOTAN_DLL std::vector<byte> pkcs_hash_id(const std::string& hash_name);
00024 
00025 /**
00026 * Return the IEEE 1363 hash identifier
00027 * @param hash_name the name of the hash function
00028 * @return byte code identifying the hash, or 0 if not known
00029 */
00030 BOTAN_DLL byte ieee1363_hash_id(const std::string& hash_name);
00031 
00032 }
00033 
00034 #endif