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/*
* Copyright (c) 2010, Isode Limited, London, England.
* All rights reserved.
*/
/*
* Copyright (c) 2010, Remko Tronçon.
* All rights reserved.
*/
package com.isode.stroke.stringcodecs;
import com.isode.stroke.base.ByteArray;
public class PBKDF2 {
public static ByteArray encode(ByteArray password, ByteArray salt, int iterations) {
ByteArray u = HMACSHA1.getResult(password, ByteArray.plus(salt, new ByteArray("\0\0\0\1")));
ByteArray result = new ByteArray(u);
byte[] resultData = result.getData();
int i = 1;
while (i < iterations) {
u = HMACSHA1.getResult(password, u);
for (int j = 0; j < u.getSize(); ++j) {
resultData[j] ^= u.getData()[j];
}
++i;
}
result = new ByteArray(resultData);
return result;
}
}
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