public void CryptoSecretBoxOpen_Decryption_Should_Success() { //Arrange String message = "test"; Byte[] bMessage = Encoding.UTF8.GetBytes(message); Byte[] sk = new Byte[TweetNaCl.SecretBoxKeyBytes]; Byte[] nonce = new Byte[TweetNaCl.SecretBoxNonceBytes]; TweetNaCl.RandomBytes(sk); TweetNaCl.RandomBytes(nonce); var encMessage = TweetNaCl.CryptoSecretBox(bMessage, nonce, sk); //Act var decMessage = TweetNaCl.CryptoSecretBoxOpen(encMessage, nonce, sk); Assert.AreEqual(decMessage.Length, bMessage.Length, "decryption failed."); Assert.AreEqual(decMessage, bMessage, "decryption failed."); }