Class Noise

Method Details

• createCipher

  public static CipherState createCipher​(String name) throws NoSuchAlgorithmException

  Creates a cipher object from its Noise protocol name.

  Parameters:

  name - The name of the cipher algorithm; e.g. "AESGCM", "ChaChaPoly", etc.

  Returns:

  The cipher object if the name is recognized.

  Throws:

  NoSuchAlgorithmException - The name is not recognized as a valid Noise protocol name, or there is no cryptography provider in the system that implements the algorithm.

• createHash

  public static MessageDigest createHash​(String name) throws NoSuchAlgorithmException

  Creates a hash object from its Noise protocol name.

  Parameters:

  name - The name of the hash algorithm; e.g. "SHA256", "BLAKE2s", etc.

  Returns:

  The hash object if the name is recognized.

  Throws:

  NoSuchAlgorithmException - The name is not recognized as a valid Noise protocol name, or there is no cryptography provider in the system that implements the algorithm.

• destroy

  static void destroy​(byte[] array)

  Destroys the contents of a byte array.

  Parameters:

  array - The array whose contents should be destroyed.

• copySubArray

  static byte[] copySubArray​(byte[] data, int offset, int length)

  Makes a copy of part of an array.

  Parameters:

  data - The buffer containing the data to copy.

  offset - Offset of the first byte to copy.

  length - The number of bytes to copy.

  Returns:

  A new array with a copy of the sub-array.

• throwBadTagException

  static void throwBadTagException() throws BadPaddingException

  Throws an instance of AEADBadTagException.

  Throws:

  BadPaddingException - The AEAD exception. If the underlying JDK does not have the AEADBadTagException class, then this function will instead throw an instance of the superclass BadPaddingException.