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Signal Protocol cryptography library for Java

There is a newer version: 2.8.1

/**
 * Copyright (C) 2014-2016 Open Whisper Systems
 *
 * Licensed according to the LICENSE file in this repository.
 */
package org.whispersystems.libsignal.ratchet;

import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

public class MessageKeys {

  private final SecretKeySpec   cipherKey;
  private final SecretKeySpec   macKey;
  private final IvParameterSpec iv;
  private final int             counter;

  public MessageKeys(SecretKeySpec cipherKey, SecretKeySpec macKey, IvParameterSpec iv, int counter) {
    this.cipherKey = cipherKey;
    this.macKey    = macKey;
    this.iv        = iv;
    this.counter   = counter;
  }

  public SecretKeySpec getCipherKey() {
    return cipherKey;
  }

  public SecretKeySpec getMacKey() {
    return macKey;
  }

  public IvParameterSpec getIv() {
    return iv;
  }

  public int getCounter() {
    return counter;
  }
}