/// <summary>
/// Parse a Handshake protocol header from wire format
/// </summary>
/// <returns>True if we successfully decode a handshake header. Otherwise false</returns>
public static bool Parse(out Handshake header, ByteSpan span)
{
header = new Handshake();
if (span.Length < Size)
{
return(false);
}
header.MessageType = (HandshakeType)span[0];
header.Length = span.ReadBigEndian24(1);
header.MessageSequence = span.ReadBigEndian16(4);
header.FragmentOffset = span.ReadBigEndian24(6);
header.FragmentLength = span.ReadBigEndian24(9);
return(true);
}
/// <summary>
/// Parse a Handshake Certificate payload from wire format
/// </summary>
/// <returns>True if we successfully decode the Certificate message. Otherwise false</returns>
public static bool Parse(out X509Certificate2 certificate, ByteSpan span)
{
certificate = null;
if (span.Length < 6)
{
return(false);
}
uint totalSize = span.ReadBigEndian24();
span = span.Slice(3);
if (span.Length < totalSize)
{
return(false);
}
uint certificateSize = span.ReadBigEndian24();
span = span.Slice(3);
if (span.Length < certificateSize)
{
return(false);
}
byte[] rawData = new byte[certificateSize];
span.CopyTo(rawData, 0);
try
{
certificate = new X509Certificate2(rawData);
}
catch (Exception)
{
return(false);
}
return(true);
}