/// <summary>
/// Prefixes the data then signs it.
/// </summary>
/// <param name="signingStream">The signing stream.</param>
/// <param name="extra">The extra data passed by prefixData.</param>
protected override void PrefixDataSign(HashingStream signingStream, object extra)
{
base.PrefixDataSign(signingStream, extra);
var expiration = FromDateTime((DateTime)extra);
var buffer = Utility.GetBytes(expiration);
signingStream.Write(buffer, 0, buffer.Length);
}
public void CannotWriteForReadMode()
{
// Arrange
var hashing = new HashingStream(new MemoryStream(), SHA1.Create(), true);
// Act, Assert
Action action = () => hashing.Write(new byte[1], 0, 1);
action.ShouldThrow <NotSupportedException>().Which.Message.Should().Be("The hashing stream is configured to read, not write.");
}
/// <summary>
/// Postfixes the data then signs it.
/// </summary>
/// <param name="signingStream">The signing stream.</param>
/// <param name="extra">The extra data passed by postfixData.</param>
protected virtual void PostfixDataSign(HashingStream signingStream, object extra)
{
signingStream.Write(FormatBytes, 0, FormatBytes.Length);
}