org.whispersystems.libsignal.kdf.DerivedRootSecrets Maven / Gradle / Ivy
/**
* Copyright (C) 2014-2016 Open Whisper Systems
*
* Licensed according to the LICENSE file in this repository.
*/
package org.whispersystems.libsignal.kdf;
import org.whispersystems.libsignal.util.ByteUtil;
public class DerivedRootSecrets {
public static final int SIZE = 64;
private final byte[] rootKey;
private final byte[] chainKey;
public DerivedRootSecrets(byte[] okm) {
byte[][] keys = ByteUtil.split(okm, 32, 32);
this.rootKey = keys[0];
this.chainKey = keys[1];
}
public byte[] getRootKey() {
return rootKey;
}
public byte[] getChainKey() {
return chainKey;
}
}