This value would be kind of weird because this part of RFC 7919 is quite
complex. But if there's interest, I don't mind adding some.
But I think the TLS 1.2 bits of RFC 7919, particularly the rule you refer
to, were a mistake and are best ignored. The benefits of that document are
unrealizable to
I would like to suggest that one additional value be added to the list
of GREASE values for named groups.
Section 2 of RFC 7919 says:
Codepoints in the "Supported Groups Registry" with a high byte of
0x01 (that is, between 256 and 511, inclusive) are set aside for
FFDHE groups.
