public static byte[] ReadNegotiatedDheGroupsClientExtension(byte[] extensionData)
{
byte[] dheGroups = TlsUtilities.DecodeUint8ArrayWithUint8Length(extensionData);
if (dheGroups.Length < 1)
{
throw new TlsFatalAlert(AlertDescription.decode_error);
}
return(dheGroups);
}
/// <exception cref="IOException"></exception>
public static byte[] ReadCertificateTypeExtensionClient(byte[] extensionData)
{
byte[] certificateTypes = TlsUtilities.DecodeUint8ArrayWithUint8Length(extensionData);
if (certificateTypes.Length < 1)
{
throw new TlsFatalAlert(AlertDescription.decode_error);
}
return(certificateTypes);
}
public static byte[] ReadSupportedPointFormatsExtension(byte[] extensionData)
{
byte[] ecPointFormats = TlsUtilities.DecodeUint8ArrayWithUint8Length(extensionData);
if (!Arrays.Contains(ecPointFormats, ECPointFormat.uncompressed))
{
/*
* RFC 4492 5.1. If the Supported Point Formats Extension is indeed sent, it MUST
* contain the value 0 (uncompressed) as one of the items in the list of point formats.
*/
throw new TlsFatalAlert(AlertDescription.illegal_parameter);
}
return(ecPointFormats);
}