return cipher;
    }

    protected void offerDecryptoCipher(final Cipher cipher) {
        decryptoQueue.offer(cipher);
    }

    public String getAlgorithm() {
        return algorithm;
    }

    public void setAlgorithm(final String algorithm) {
        this.algorithm = algorithm;
    }

    public String getTransformation() {
        return transformation;
    }

            return factory.getFileExtension();
        }

        @Override
        public ChecksumCalculator getCalculator() {
            return new DefaultChecksumCalculator(factory.getAlgorithm());
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) {
                return true;
            }

            return factory.getFileExtension();
        }

        @Override
        public ChecksumCalculator getCalculator() {
            return new DefaultChecksumCalculator(factory.getAlgorithm());
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) {
                return true;
            }

  }

  private static String hmacToString(String methodName, Key key) {
    return "Hashing."
        + methodName
        + "(Key[algorithm="
        + key.getAlgorithm()
        + ", format="
        + key.getFormat()
        + "])";
  }

  /**
   * Returns a hash function implementing the CRC32C checksum algorithm (32 hash bits) as described