public static SignatureMessage FromSignatureMessageBlock(ArraySegment <byte> message, IExchangeDecrypt privateKey)
{
if (message.Array == null)
{
throw new ArgumentNullException("message.Array");
}
if (privateKey == null)
{
throw new ArgumentNullException("privateKey");
}
try
{
using (Stream typeStream = new MemoryStream(message.Array, message.Offset, message.Count))
using (Stream cryptoStream = ContentConverter.RemoveType(typeStream, "SignatureMessage"))
using (Stream hashStream = ContentConverter.Decrypt(cryptoStream, privateKey))
using (Stream paddingStream = ContentConverter.RemoveHash(hashStream))
using (Stream compressStream = ContentConverter.RemovePadding(paddingStream))
using (Stream messageStream = ContentConverter.Decompress(compressStream))
{
return(SignatureMessage.Import(messageStream, _bufferManager));
}
}
catch (Exception)
{
return(null);
}
}
public static ChatMessage FromChatMessageBlock(ArraySegment <byte> message)
{
if (message.Array == null)
{
throw new ArgumentNullException("message.Array");
}
try
{
using (Stream typeStream = new MemoryStream(message.Array, message.Offset, message.Count))
using (Stream compressStream = ContentConverter.RemoveType(typeStream, "ChatMessage"))
using (Stream messageStream = ContentConverter.Decompress(compressStream))
{
return(ChatMessage.Import(messageStream, _bufferManager));
}
}
catch (Exception)
{
return(null);
}
}