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/*
* TLS v1.0 and v1.2 PRFs
* (C) 2004-2010 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_TLS_PRF_H__
#define BOTAN_TLS_PRF_H__
#include <botan/kdf.h>
#include <botan/mac.h>
namespace Botan {
/**
* PRF used in TLS 1.0/1.1
*/
class BOTAN_DLL TLS_PRF : public KDF
{
public:
secure_vector<byte> derive(size_t key_len,
const byte secret[], size_t secret_len,
const byte seed[], size_t seed_len) const;
std::string name() const { return "TLS-PRF"; }
KDF* clone() const { return new TLS_PRF; }
TLS_PRF();
private:
std::unique_ptr<MessageAuthenticationCode> hmac_md5;
std::unique_ptr<MessageAuthenticationCode> hmac_sha1;
};
/**
* PRF used in TLS 1.2
*/
class BOTAN_DLL TLS_12_PRF : public KDF
{
public:
secure_vector<byte> derive(size_t key_len,
const byte secret[], size_t secret_len,
const byte seed[], size_t seed_len) const;
std::string name() const { return "TLSv12-PRF(" + hmac->name() + ")"; }
KDF* clone() const { return new TLS_12_PRF(hmac->clone()); }
TLS_12_PRF(MessageAuthenticationCode* hmac);
private:
std::unique_ptr<MessageAuthenticationCode> hmac;
};
}
#endif
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