A weakness in PGP signatures, and a suggested solution (long)

Arnoud "Galactus" Engelfriet galactus at stack.urc.tue.nl
Sun Jan 14 13:49:19 PST 1996


-----BEGIN PGP SIGNED MESSAGE-----

In article <Pine.ULT.3.91.960112020051.6769E-100000 at Networking.Stanford.EDU>,
Rich Graves <llurch at Networking.Stanford.EDU> wrote:
> An easy short-term partial solution would be to modify mailcrypt, bap, or
> whatever front end you use to automatically put the current date and (a
> shortened form of) the To: or Newsgroups: header into the PGP signature
> Comments: line. 

That line can be clipped off by everyone, without even so much as a peep
from PGP.  Perhaps a better solution would be to copy the To:  and
Newsgroups: headers into the body of the message?

Galactus

- -- 
To find out more about PGP, send mail with HELP PGP in the SUBJECT line to me.
E-mail: galactus at stack.urc.tue.nl - Please PGP encrypt your mail if you can.
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-----BEGIN PGP SIGNATURE-----
Version: 2.6.2i

iQCVAgUBMPbYTDyeOyxBaho1AQGtvAQA2bVrvx7Argv/MjjA7cOGpJNzV0AGg96J
PvOsknNKfUj9n/gRLDNlGeL+j8wcdpgpdv1h2udmL582nv1T6r/m1ZI6wxedDUvk
eGt+KpNKijXuTdXRTvdVV/Wxahk2/3TgoA0U40CZmm1s1Ckk506T1dkGkt19UsvO
/5sBQ/eKUhY=
=S/aM
-----END PGP SIGNATURE-----






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