Detecting PGP 2.6.x keys

Johan Wevers johanw at
Fri Sep 17 00:00:02 CEST 2004

David Shaw wrote:

>It's not just that the person with the PGP 2.x key must have IDEA -
>it's that people with OpenPGP might not.  Take this case: User A has a
>PGP 2.x key.  User B has an OpenPGP key.  In an effort to accomodate
>user A, you encrypt using IDEA.  However, user B does not have IDEA.
>By trying to be backwards compatible with user A, you accomplish
>locking out the modern user B.

Well, modern user B should then find an IDEA module or compile it in.

ir. J.C.A. Wevers         //  Physics and science fiction site:
johanw at   //
PGP/GPG public keys at

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