Method hmacSha256

corpus/java/training/guava/hash/Hashing.java:310–312

Returns a hash function implementing the Message Authentication Code (MAC) algorithm, using the SHA-256 (256 hash bits) hash function and the given secret key. @param key the secret key @throws IllegalArgumentException if the given key is inappropriate for initializing this MAC @since 20.0

(Key key)

   * @since 20.0
   */
  public static HashFunction hmacSha256(Key key) {
    return new MacHashFunction("HmacSHA256", key, hmacToString("hmacSha256", key));
  }

  /**
   * Returns a hash function implementing the Message Authentication Code (MAC) algorithm, using the