draft-ietf-openpgp-rfc4880bis-04

[Werner Koch]

On Fri,  9 Feb 2018 03:18, gnupg-users at gnupg.org said:

> ...and that's the end of hashed subpackets. That should be all that is hashed for the signature, yet there is the remaining octets in m:
>
>  04ff0000000c

See 5.2.4, Computing Signatures:

| V4 signatures also hash in a final trailer of six octets: the version
| of the Signature packet, i.e., 0x04; 0xFF; and a four-octet,
| big-endian number that is the length of the hashed data from the
| Signature packet (note that this number does not include these final
| six octets).
| 
| V5 signatures instead hash in a ten-octet trailer: the version of the
| Signature packet, i.e., 0x05; 0xFF; and an eight-octet, big-endian
| number that is the length of the hashed data from the Signature packet
| (note that this number does not include these final ten octets).



Salam-Shalom,

   Werner

-- 
Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.
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