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/*
* Passhash9 Password Hashing
* (C) 2010 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_PASSHASH9_H_
#define BOTAN_PASSHASH9_H_
#include <botan/types.h>
#include <string>
namespace Botan {
class RandomNumberGenerator;
/**
* Create a password hash using PBKDF2
* @param password the password
* @param rng a random number generator
* @param work_factor how much work to do to slow down guessing attacks
* @param alg_id specifies which PRF to use with PBKDF2
* 0 is HMAC(SHA-1)
* 1 is HMAC(SHA-256)
* 2 is CMAC(Blowfish)
* 3 is HMAC(SHA-384)
* 4 is HMAC(SHA-512)
* all other values are currently undefined
*/
std::string BOTAN_PUBLIC_API(2,0) generate_passhash9(const std::string& password,
RandomNumberGenerator& rng,
uint16_t work_factor = 15,
uint8_t alg_id = 4);
/**
* Check a previously created password hash
* @param password the password to check against
* @param hash the stored hash to check against
*/
bool BOTAN_PUBLIC_API(2,0) check_passhash9(const std::string& password,
const std::string& hash);
/**
* Check if the PRF used with PBKDF2 is supported
* @param alg_id alg_id used in generate_passhash9()
*/
bool BOTAN_PUBLIC_API(2,3) is_passhash9_alg_supported(uint8_t alg_id);
}
#endif
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