public static byte[] CreateSupportedPointFormatsExtension(byte[] ecPointFormats)
{
if (ecPointFormats == null || !Arrays.Contains(ecPointFormats, 0))
{
ecPointFormats = Arrays.Append(ecPointFormats, 0);
}
return(TlsUtilities.EncodeUint8ArrayWithUint8Length(ecPointFormats));
}
public static byte[] CreateNegotiatedDheGroupsClientExtension(byte[] dheGroups)
{
if (dheGroups == null || dheGroups.Length < 1 || dheGroups.Length > 255)
{
throw new TlsFatalAlert(80);
}
return(TlsUtilities.EncodeUint8ArrayWithUint8Length(dheGroups));
}
/// <exception cref="IOException"></exception>
public static byte[] CreateCertificateTypeExtensionClient(byte[] certificateTypes)
{
if (certificateTypes == null || certificateTypes.Length < 1 || certificateTypes.Length > 255)
{
throw new TlsFatalAlert(AlertDescription.internal_error);
}
return(TlsUtilities.EncodeUint8ArrayWithUint8Length(certificateTypes));
}
public static byte[] CreateSupportedPointFormatsExtension(byte[] ecPointFormats)
{
if (ecPointFormats == null || !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.
*/
// NOTE: We add it at the end (lowest preference)
ecPointFormats = Arrays.Append(ecPointFormats, ECPointFormat.uncompressed);
}
return(TlsUtilities.EncodeUint8ArrayWithUint8Length(ecPointFormats));
}