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/*
* PKCS #5 v2.0 PBE
* (C) 1999-2007,2014 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_PBE_PKCS_V20_H_
#define BOTAN_PBE_PKCS_V20_H_
#include <botan/asn1_obj.h>
#include <chrono>
namespace Botan {
class RandomNumberGenerator;
/**
* Encrypt with PBES2 from PKCS #5 v2.0
* @param key_bits the input
* @param passphrase the passphrase to use for encryption
* @param msec how many milliseconds to run PBKDF2
* @param cipher specifies the block cipher to use to encrypt
* @param digest specifies the PRF to use with PBKDF2 (eg "HMAC(SHA-1)")
* @param rng a random number generator
*/
std::pair<AlgorithmIdentifier, std::vector<uint8_t>>
pbes2_encrypt(const secure_vector<uint8_t>& key_bits,
const std::string& passphrase,
std::chrono::milliseconds msec,
const std::string& cipher,
const std::string& digest,
RandomNumberGenerator& rng);
/**
* Encrypt with PBES2 from PKCS #5 v2.0
* @param key_bits the input
* @param passphrase the passphrase to use for encryption
* @param msec how many milliseconds to run PBKDF2
* @param out_iterations_if_nonnull if not null, set to the number
* of PBKDF iterations used
* @param cipher specifies the block cipher to use to encrypt
* @param digest specifies the PRF to use with PBKDF2 (eg "HMAC(SHA-1)")
* @param rng a random number generator
*/
std::pair<AlgorithmIdentifier, std::vector<uint8_t>>
pbes2_encrypt_msec(const secure_vector<uint8_t>& key_bits,
const std::string& passphrase,
std::chrono::milliseconds msec,
size_t* out_iterations_if_nonnull,
const std::string& cipher,
const std::string& digest,
RandomNumberGenerator& rng);
/**
* Encrypt with PBES2 from PKCS #5 v2.0
* @param key_bits the input
* @param passphrase the passphrase to use for encryption
* @param iterations how many iterations to run PBKDF2
* @param cipher specifies the block cipher to use to encrypt
* @param digest specifies the PRF to use with PBKDF2 (eg "HMAC(SHA-1)")
* @param rng a random number generator
*/
std::pair<AlgorithmIdentifier, std::vector<uint8_t>>
pbes2_encrypt_iter(const secure_vector<uint8_t>& key_bits,
const std::string& passphrase,
size_t iterations,
const std::string& cipher,
const std::string& digest,
RandomNumberGenerator& rng);
/**
* Decrypt a PKCS #5 v2.0 encrypted stream
* @param key_bits the input
* @param passphrase the passphrase to use for decryption
* @param params the PBES2 parameters
*/
secure_vector<uint8_t>
pbes2_decrypt(const secure_vector<uint8_t>& key_bits,
const std::string& passphrase,
const std::vector<uint8_t>& params);
}
#endif
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