cv25519 scalar byte order
Werner Koch
wk at gnupg.org
Mon Apr 9 18:53:53 CEST 2018
On Mon, 19 Feb 2018 17:24, dkg at fifthhorseman.net said:
>> That would be incorrect. The prefix (e.g. 0x40) indicates a _point_
>> format and not the format of a scalar. Thus skey[3] MAY not have this
>> prefix.
>
> what does this "MAY NOT" mean? if this is an attempt at RFC 2119
> language, i don't understand it. Do you mean "MUST NOT" ?
I was thinking SHOULD NOT but indeed it MUST be MUST NOT.
> What steps are needed to clarify the documentation here so that we can
> have interoperable implementations?
I can't remember an open issue regaring this in the WG. Should be
handled there anyway,
Salam-Shalom,
Werner
--
# Please read: Daniel Ellsberg - The Doomsday Machine #
Die Gedanken sind frei. Ausnahmen regelt ein Bundesgesetz.
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