package net.i2p.router.util;
/*
* free (adj.): unencumbered; not under the control of others
* Written by jrandom in 2003 and released into the public domain
* with no warranty of any kind, either expressed or implied.
* It probably won't make your computer catch on fire, or eat
* your children, but it might. Use at your own risk.
*
*/
import java.math.BigInteger;
import net.i2p.data.DataHelper;
import net.i2p.data.Hash;
/**
* Moved from PeerSelector
* @since 0.7.14
*/
public class HashDistance {
public static BigInteger getDistance(Hash targetKey, Hash routerInQuestion) {
// plain XOR of the key and router
byte diff[] = DataHelper.xor(routerInQuestion.getData(), targetKey.getData());
return new BigInteger(1, diff);
}
}