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/*
* Copyright (c) 2010 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#pragma once
#include <Swiften/Base/SafeByteArray.h>
#include <Swiften/Base/Concat.h>
namespace Swift {
class PBKDF2 {
public:
template<typename PRF>
static ByteArray encode(const SafeByteArray& password, const ByteArray& salt, int iterations) {
PRF prf;
ByteArray u = prf(password, concat(salt, createByteArray("\0\0\0\1", 4)));
ByteArray result(u);
int i = 1;
while (i < iterations) {
u = prf(password, u);
for (unsigned int j = 0; j < u.size(); ++j) {
result[j] ^= u[j];
}
++i;
}
return result;
}
};
}
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