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/*
* PKCS #5 v2.0 PBE
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_PBE_PKCS_v20_H__
#define BOTAN_PBE_PKCS_v20_H__
#include <botan/pbe.h>
#include <botan/block_cipher.h>
#include <botan/mac.h>
#include <botan/pipe.h>
#include <chrono>
namespace Botan {
/**
* PKCS #5 v2.0 PBE
*/
class BOTAN_DLL PBE_PKCS5v20 : public PBE
{
public:
OID get_oid() const;
std::vector<byte> encode_params() const;
std::string name() const;
void write(const byte buf[], size_t buf_len);
void start_msg();
void end_msg();
/**
* Load a PKCS #5 v2.0 encrypted stream
* @param params the PBES2 parameters
* @param passphrase the passphrase to use for decryption
*/
PBE_PKCS5v20(const std::vector<byte>& params,
const std::string& passphrase);
/**
* @param cipher the block cipher to use
* @param mac the MAC to use
* @param passphrase the passphrase to use for encryption
* @param msec how many milliseconds to run the PBKDF
* @param rng a random number generator
*/
PBE_PKCS5v20(BlockCipher* cipher,
MessageAuthenticationCode* mac,
const std::string& passphrase,
std::chrono::milliseconds msec,
RandomNumberGenerator& rng);
~PBE_PKCS5v20();
private:
void flush_pipe(bool);
Cipher_Dir direction;
BlockCipher* block_cipher;
MessageAuthenticationCode* m_prf;
secure_vector<byte> salt, key, iv;
size_t iterations, key_length;
Pipe pipe;
};
}
#endif
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