GnuPG 1.03, RSA/IDEA, and cipher-algo preferences

[Huels, Ralf KSV]

> Thanks for the response.  I didn't mean that the man page description for
> the --cipher-algo option was to be used to specify a general preference.
>  I
> was referring to the sentence that says "If this [the --cipher-algo
> option]
> is not used the cipher algorithm is selected from the preferences stored
> with the key."  And my question is:  How do I specify that stored 
> preference?

By creating a Key ;-) Seriously, the algorithm preferences are stored 
in the self-signature of a user ID (You can review them by running
gpg --list-packets on a public key file or using the pref command in
the --edit-key function). I don´t know, whether algrithm preferences
are possible at all with RSA keys/v3 sigs.

Currently the preferences 10/4/3 (Twofish, Blowfish, Cast5) are 
hard-wired into the GnuPG key creation process. 
You´d have to go source-diving to change them (g10/keygen.c, IIRC).

Apparently, editing functionality is on the wish list for version 1.1.

See also:
http://lists.gnupg.org/gnupg-users-200009/msg00119.html
http://lists.gnupg.org/gnupg-users-200009/msg00120.html

HTH.
Tschuess, 
Ralf

-- 
Ralf Hüls                                                  Bismarckplatz
KSV Kreditschutz-Vereinigung GmbH                           44866 Bochum
Score-Consult                                         Tel. 02327/9114-28
http://www.schufa.de/                                 Fax. 02327/8 40 27


 

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