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/*************************************************
* S2K Source File *
* (C) 1999-2007 Jack Lloyd *
*************************************************/
#include <botan/s2k.h>
#include <botan/rng.h>
namespace Botan {
/*************************************************
* Derive a key from a passphrase *
*************************************************/
OctetString S2K::derive_key(u32bit key_len,
const std::string& passphrase) const
{
return derive(key_len, passphrase, salt, salt.size(), iterations());
}
/*************************************************
* Set the number of iterations *
*************************************************/
void S2K::set_iterations(u32bit i)
{
iter = i;
}
/*************************************************
* Change the salt *
*************************************************/
void S2K::change_salt(const byte new_salt[], u32bit length)
{
salt.set(new_salt, length);
}
/*************************************************
* Change the salt *
*************************************************/
void S2K::change_salt(const MemoryRegion<byte>& new_salt)
{
change_salt(new_salt.begin(), new_salt.size());
}
/*************************************************
* Create a new random salt *
*************************************************/
void S2K::new_random_salt(u32bit length)
{
salt.create(length);
Global_RNG::randomize(salt, length);
}
}
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