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/*
* PBKDF
* (C) 2012 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include <botan/pbkdf.h>
#include <stdexcept>
namespace Botan {
void PBKDF::pbkdf_timed(byte out[], size_t out_len,
const std::string& passphrase,
const byte salt[], size_t salt_len,
std::chrono::milliseconds msec,
size_t& iterations) const
{
iterations = pbkdf(out, out_len, passphrase, salt, salt_len, 0, msec);
}
void PBKDF::pbkdf_iterations(byte out[], size_t out_len,
const std::string& passphrase,
const byte salt[], size_t salt_len,
size_t iterations) const
{
if(iterations == 0)
throw std::invalid_argument(name() + ": Invalid iteration count");
const size_t iterations_run = pbkdf(out, out_len, passphrase,
salt, salt_len, iterations,
std::chrono::milliseconds(0));
BOTAN_ASSERT_EQUAL(iterations, iterations_run, "Expected PBKDF iterations");
}
secure_vector<byte> PBKDF::pbkdf_iterations(size_t out_len,
const std::string& passphrase,
const byte salt[], size_t salt_len,
size_t iterations) const
{
secure_vector<byte> out(out_len);
pbkdf_iterations(out.data(), out_len, passphrase, salt, salt_len, iterations);
return out;
}
secure_vector<byte> PBKDF::pbkdf_timed(size_t out_len,
const std::string& passphrase,
const byte salt[], size_t salt_len,
std::chrono::milliseconds msec,
size_t& iterations) const
{
secure_vector<byte> out(out_len);
pbkdf_timed(out.data(), out_len, passphrase, salt, salt_len, msec, iterations);
return out;
}
}
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