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/*
* Hash Algorithms Lookup
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#include <botan/def_eng.h>
#include <botan/scan_name.h>
#include <botan/algo_factory.h>
#include <memory>
#if defined(BOTAN_HAS_ADLER32)
#include <botan/adler32.h>
#endif
#if defined(BOTAN_HAS_CRC24)
#include <botan/crc24.h>
#endif
#if defined(BOTAN_HAS_CRC32)
#include <botan/crc32.h>
#endif
#if defined(BOTAN_HAS_FORK_256)
#include <botan/fork256.h>
#endif
#if defined(BOTAN_HAS_GOST_34_11)
#include <botan/gost_3411.h>
#endif
#if defined(BOTAN_HAS_HAS_160)
#include <botan/has160.h>
#endif
#if defined(BOTAN_HAS_MD2)
#include <botan/md2.h>
#endif
#if defined(BOTAN_HAS_MD4)
#include <botan/md4.h>
#endif
#if defined(BOTAN_HAS_MD5)
#include <botan/md5.h>
#endif
#if defined(BOTAN_HAS_RIPEMD_128)
#include <botan/rmd128.h>
#endif
#if defined(BOTAN_HAS_RIPEMD_160)
#include <botan/rmd160.h>
#endif
#if defined(BOTAN_HAS_SHA1)
#include <botan/sha160.h>
#endif
#if defined(BOTAN_HAS_SHA2)
#include <botan/sha2_32.h>
#include <botan/sha2_64.h>
#endif
#if defined(BOTAN_HAS_TIGER)
#include <botan/tiger.h>
#endif
#if defined(BOTAN_HAS_WHIRLPOOL)
#include <botan/whrlpool.h>
#endif
#if defined(BOTAN_HAS_PARALLEL_HASH)
#include <botan/par_hash.h>
#endif
namespace Botan {
/*
* Look for an algorithm with this name
*/
HashFunction*
Default_Engine::find_hash(const SCAN_Name& request,
Algorithm_Factory& af) const
{
#if defined(BOTAN_HAS_ADLER32)
if(request.algo_name() == "Adler32")
return new Adler32;
#endif
#if defined(BOTAN_HAS_CRC24)
if(request.algo_name() == "CRC24")
return new CRC24;
#endif
#if defined(BOTAN_HAS_CRC32)
if(request.algo_name() == "CRC32")
return new CRC32;
#endif
#if defined(BOTAN_HAS_FORK_256)
if(request.algo_name() == "FORK-256")
return new FORK_256;
#endif
#if defined(BOTAN_HAS_GOST_34_11)
if(request.algo_name() == "GOST-34.11")
return new GOST_34_11;
#endif
#if defined(BOTAN_HAS_HAS_160)
if(request.algo_name() == "HAS-160")
return new HAS_160;
#endif
#if defined(BOTAN_HAS_MD2)
if(request.algo_name() == "MD2")
return new MD2;
#endif
#if defined(BOTAN_HAS_MD4)
if(request.algo_name() == "MD4")
return new MD4;
#endif
#if defined(BOTAN_HAS_MD5)
if(request.algo_name() == "MD5")
return new MD5;
#endif
#if defined(BOTAN_HAS_RIPEMD_128)
if(request.algo_name() == "RIPEMD-128")
return new RIPEMD_128;
#endif
#if defined(BOTAN_HAS_RIPEMD_160)
if(request.algo_name() == "RIPEMD-160")
return new RIPEMD_160;
#endif
#if defined(BOTAN_HAS_SHA1)
if(request.algo_name() == "SHA-160")
return new SHA_160;
#endif
#if defined(BOTAN_HAS_SHA2)
if(request.algo_name() == "SHA-224")
return new SHA_224;
if(request.algo_name() == "SHA-256")
return new SHA_256;
if(request.algo_name() == "SHA-384")
return new SHA_384;
if(request.algo_name() == "SHA-512")
return new SHA_512;
#endif
#if defined(BOTAN_HAS_TIGER)
if(request.algo_name() == "Tiger")
return new Tiger(request.arg_as_u32bit(0, 24), // hash output
request.arg_as_u32bit(1, 3)); // # passes
#endif
#if defined(BOTAN_HAS_WHIRLPOOL)
if(request.algo_name() == "Whirlpool")
return new Whirlpool;
#endif
#if defined(BOTAN_HAS_PARALLEL_HASH)
if(request.algo_name() == "Parallel")
{
std::vector<const HashFunction*> hash_prototypes;
/* First pass, just get the prototypes (no memory allocation). Then
if all were found, replace each prototype with a newly created clone
*/
for(size_t i = 0; i != request.arg_count(); ++i)
{
const HashFunction* hash = af.prototype_hash_function(request.arg(i));
if(!hash)
return 0;
hash_prototypes.push_back(hash);
}
std::vector<HashFunction*> hashes;
for(size_t i = 0; i != hash_prototypes.size(); ++i)
hashes.push_back(hash_prototypes[i]->clone());
return new Parallel(hashes);
}
#endif
return 0;
}
}
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