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/*
* TLS Handshake Hash
* (C) 2004-2006,2011,2012 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include <botan/internal/tls_handshake_hash.h>
#include <botan/tls_exceptn.h>
#include <botan/algo_registry.h>
#include <botan/hash.h>
namespace Botan {
namespace TLS {
/**
* Return a TLS Handshake Hash
*/
secure_vector<byte> Handshake_Hash::final(Protocol_Version version,
const std::string& mac_algo) const
{
std::unique_ptr<HashFunction> hash;
if(version.supports_ciphersuite_specific_prf())
{
if(mac_algo == "MD5" || mac_algo == "SHA-1")
hash.reset(make_a<HashFunction>("SHA-256"));
else
hash.reset(make_a<HashFunction>(mac_algo));
}
else
hash.reset(make_a<HashFunction>("Parallel(MD5,SHA-160)"));
hash->update(data);
return hash->final();
}
}
}
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