public void XChaCha20BlockWhenLengthIsInvalidFails()
{
// Arrange
var key = new byte[Snuffle.KEY_SIZE_IN_BYTES];
var cipher = new XChaCha20(key, 0);
var nonce = new byte[cipher.NonceSizeInBytes() + TestHelpers.ReturnRandomPositiveNegative()];
var block = new byte[0];
// Act & Assert
Assert.Throws <CryptographicException>(() => cipher.ProcessKeyStreamBlock(nonce, 0, block));
}
public void XChaCha20BlockWhenNonceLengthIsEmptyFails()
{
// Arrange
var key = new byte[Snuffle.KEY_SIZE_IN_BYTES];
var cipher = new XChaCha20(key, 0);
var nonce = new byte[0];
var block = new byte[Snuffle.BLOCK_SIZE_IN_BYTES];
// Act & Assert
Assert.Throws <CryptographicException>(() => cipher.ProcessKeyStreamBlock(nonce, 0, block));
}
public void XChaCha20BlockWhenLengthIsInvalidFails()
{
// Arrange
var key = new byte[Snuffle.KEY_SIZE_IN_BYTES];
var cipher = new XChaCha20(key, 0);
var nonce = new byte[XChaCha20.NONCE_SIZE_IN_BYTES + TestHelpers.ReturnRandomPositiveNegative()];
var block = new byte[0];
// Act & Assert
Action act = () => cipher.ProcessKeyStreamBlock(nonce, 0, block);
act.Should().Throw <CryptographicException>();
}