Thanks all for your help. Now, the story gets even more funny: They claim to have used PGP split-key, then encrypted the files with a randomized key, then encrypted the key with individual keys.
So far so bad. But now comes the best: They claim that, because one of the managers wasn't able to remember his mantra, they decided to _delete_ all encrypted data. It sounds as if the whole thing is really nothing else but a bogus... Now as Vedaal wrote: Best thing that can happen is that they encrypted something later... But I see support for my opinion that the thing smells :-) Thanks again Denise > > David's talking about an advanced scenario. And maybe the company did > do this, but I've got a feeling you might be over-thinking things. > > Normally, if you encrypt a file to four users, each user has their own > key that's completely independent of the other users. If you're trying > to see if the file was encrypted to another manager, who hopefully > hasn't conveniently 'lost' his key, you can examine the encrypted file > and get a list of the keys it's encrypted to. > > So for example, here you can see that even if I claim to have lost my > key, David is another person who could decrypt the contents... > > johnmudhead:~ grant$ gpg -r k...@grant-olson.net -r ds...@jabberwocky.com > --encrypt bar.txt > File `bar.txt.gpg' exists. Overwrite? (y/N) y > johnmudhead:~ grant$ gpg --list-packets bar.txt.gpg > :pubkey enc packet: version 3, algo 1, keyid 1458BCCB6A8F7CF6 > data: [2045 bits] > :pubkey enc packet: version 3, algo 16, keyid AE2827D11643B926 > data: [2047 bits] > data: [2048 bits] > :encrypted data packet: > length: 70 > mdc_method: 2 > gpg: encrypted with 2048-bit ELG key, ID 1643B926, created 2002-01-28 > "David M. Shaw <ds...@jabberwocky.com>" > gpg: encrypted with 2048-bit RSA key, ID 6A8F7CF6, created 2010-01-11 > "Grant T. Olson (Personal email) <k...@grant-olson.net>" > :compressed packet: algo=2 > :literal data packet: > mode b (62), created 1298914148, name="bar.txt", > raw data: 4 bytes > > > -- > Grant > > "I am gravely disappointed. Again you have made me unleash my dogs of > war." > -- NEU: FreePhone - kostenlos mobil telefonieren und surfen! Jetzt informieren: http://www.gmx.net/de/go/freephone _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
