PGP can't decript messages encripted with GPG

Werner Koch
Wed, 27 Sep 2000 13:26:30 +0200

On Tue, 26 Sep 2000, Salvador wrote:

> "An error has ocurr: Encripted sesion key is bad"
> Why is this? Exist a way of correct this?
You created the secret key with gpg and copied it over to PGP I assume. GPG creates preferences to the Twofish algorithm and therefore it tries to use Twofish and the new MDC encryption packet which PGP 6.5.8 does not understand. 2 solutions: 1. Update to PGP 7.0 or 2. Use "gpg --disable-cipher twofish" ( you may want to put it into ~/.gnupg/options. MDC packets are needed to avoid a (not so) new choosen ciphertext attack, therefore it is a good idea to use the first solution. Ciao, Werner -- Werner Koch GnuPG key: 621CC013 OpenIT GmbH -- Archive is at - Unsubscribe by sending mail with a subject of "unsubscribe" to