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/*
* KDF Retrieval
* (C) 1999-2007 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include <botan/kdf.h>
#include <botan/libstate.h>
#include <botan/scan_name.h>
#if defined(BOTAN_HAS_KDF1)
#include <botan/kdf1.h>
#endif
#if defined(BOTAN_HAS_KDF2)
#include <botan/kdf2.h>
#endif
#if defined(BOTAN_HAS_X942_PRF)
#include <botan/prf_x942.h>
#endif
#if defined(BOTAN_HAS_TLS_V10_PRF)
#include <botan/prf_tls.h>
#endif
namespace Botan {
KDF* get_kdf(const std::string& algo_spec)
{
SCAN_Name request(algo_spec);
Algorithm_Factory& af = global_state().algorithm_factory();
if(request.algo_name() == "Raw")
return nullptr; // No KDF
#if defined(BOTAN_HAS_KDF1)
if(request.algo_name() == "KDF1" && request.arg_count() == 1)
return new KDF1(af.make_hash_function(request.arg(0)));
#endif
#if defined(BOTAN_HAS_KDF2)
if(request.algo_name() == "KDF2" && request.arg_count() == 1)
return new KDF2(af.make_hash_function(request.arg(0)));
#endif
#if defined(BOTAN_HAS_X942_PRF)
if(request.algo_name() == "X9.42-PRF" && request.arg_count() == 1)
return new X942_PRF(request.arg(0)); // OID
#endif
#if defined(BOTAN_HAS_TLS_V10_PRF)
if(request.algo_name() == "TLS-PRF" && request.arg_count() == 0)
return new TLS_PRF;
#endif
#if defined(BOTAN_HAS_TLS_V10_PRF)
if(request.algo_name() == "TLS-PRF" && request.arg_count() == 0)
return new TLS_PRF;
#endif
#if defined(BOTAN_HAS_TLS_V12_PRF)
if(request.algo_name() == "TLS-12-PRF" && request.arg_count() == 1)
return new TLS_12_PRF(af.make_mac("HMAC(" + request.arg(0) + ")"));
#endif
throw Algorithm_Not_Found(algo_spec);
}
}
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