public void TestXfrmReuse(byte[] sk, byte[] iv, ZucVersion version, byte[] input)
{
var cipher = new Eea3Transform(sk, iv, true, version);
var cipherText = cipher.TransformFinalBlock(input, 0, input.Length);
var plaintext = cipher.TransformFinalBlock(cipherText, 0, cipherText.Length);
Assert.Equal(input.AsEnumerable(), plaintext);
}
public void TestVector(byte[] sk, uint count, byte bearer, byte direction, int bits, byte[] plaintext, byte[] ciphertext)
{
var iv = new byte[16];
iv[0] = (byte)(count >> 24);
iv[1] = (byte)(count >> 16);
iv[2] = (byte)(count >> 8);
iv[3] = (byte)count;
iv[4] = (byte)((bearer << 3) | (direction << 2));
iv[5] = iv[6] = iv[7] = 0;
Array.Copy(iv, 0, iv, 8, 8);
var cipher = new Eea3Transform(sk, iv);
var cipherOutput = new byte[plaintext.Length];
cipher.TransformBits(plaintext, cipherOutput, bits);
Assert.Equal(ciphertext.AsEnumerable(), cipherOutput);
cipher.TransformFinalBlock(Array.Empty <byte>(), 0, 0);
Assert.Throws <InvalidOperationException>(() => cipher.TransformBlock(plaintext, 0, bits, cipherOutput, 0));
}
