Yes, Robert, that is possible. However, IIRC, signatures come with a time stamp. In the case I am envisioning, the quotER is taking it from somwhere, and the quotEE can show the prior, complete post.
Yes, this does not prevent someone from pre-creating two different messages, but someone resorting to that level of duplicity is both uncommon and will likely have other prevaricatory methods as well. --Avi On 1/13/09, Robert J. Hansen <r...@sixdemonbag.org> wrote: > Avi wrote: >> For example, given the possibility of a piece of an e-mail being >> quoted out of context, signing my messages allows me to >> demonstrate the totality of what I did write at the time I wrote >> it, so I have a recourse to show the entire post and its >> context. The same would apply for text documents, etc. > > Yes and no. If I ask "Avi, did you really say 'I liked Yasser > Arafat'?'", you might present me with this message: > > > "With respect to the Munich Massacre -- I don't know > who was ultimately responsible for it, but I always > liked Yasser Arafat as the chief culprit." > > > ... But unbeknownst to me, you /did/ actually say "I liked Yasser > Arafat. I liked him quite a bit, really. I often had him over for tea > and scones and we would talk about our families." > > When confronted with the quote "I like Yasser Arafat", you wanted to be > able to deny saying it. So you wrote up an innocuous text message > involving the Munich Massacre, reset your computer clock back, signed > it, and then presented me with the doctored message as proof of what you > _really_ said at that point in time. > > You cannot use signatures to put excerpts in context, not in the general > case. The timestamp problem is a killer. > > If the person presenting you with a quote also includes the signature of > the message they're quoting, though, then yes, this becomes possible. > But if they're excerpting you, odds are good they don't have your signature. > -- Sent from my mobile device ---- en:User:Avraham pub 1024D/785EA229 3/6/2007 Avi (Wikipedia-related) <aviw...@gmail.com> Primary key fingerprint: D233 20E7 0697 C3BC 4445 7D45 CBA0 3F46 785E A229 _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users