default Cipher and Pubkey algo

Georg Wilckens
Thu Mar 8 22:33:05 2001

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On Wed, Mar, 07, 2001 at 22:20:49 +0000, Andrew McDonald wrote:

> On Wed, Mar 07, 2001 at 10:24:28PM +0100, Georg Wilckens wrote:
> >=20
> > The thing I am wondering about is, how I can find out which cipher
> > algorithm is selected in the preferences of a given key. Is this
> > implemented yet?
> You can find out the preferences from the edit-key command, e.g.
Ahh, ok, thanks a lot! Didn't find a reference saying it's the numbers that show what it is. [...]
> Command> pref
> pub 1024D/F2DEED36 created: 1999-11-01 expires: never trust: -/u
> (1) Andrew McDonald <>
> S7 S10 S3 S4 H3 H2 Z2 Z1
> (2) Andrew McDonald <>
> S7 S10 S3 S4 H3 H2 Z2 Z1
> -X-X-
> The 'S' is the symmetric cipher preference. 'H' is hash algorithm. 'Z'
> is compression. You can find out what the numbers mean from RFC2440.
> e.g. for the symmetric encryption:
[...] Hmm.. I find the following set for my key: S3 S1 S2 So we have CAST5, IDEA and 3DES as cipher-algorithm. Strange enough, since gpg doesn't support IDEA, IIRC. The key was generated by a german publisher last year at the CeBIT in Hanover; do you think I need to make some changes? Is this possible with gnupg? Would it render the signatures on the key invalid?
> [actually this is the list from the RFC2440-bis Internet Draft -
> algorithm 10 isn't specified in RFC2440]
Thanks. :) The reason I was asking about the cipher-algo was that I am running into a problem with a PGP 6.5.1i user trying to encrypt mail to me. gpg: cipher algorithm 1 is unknown or disabled gpg: encrypted with 4096-bit ELG-E key, ID DDBCC416, created 2000-02-27 "Georg Wilckens <>" gpg: public key decryption failed: unknown cipher algorithm So this seems to be an IDEA-Problem? If gpg cannot change key-parameters (cipher-algo, ...), is there a tool to do this? Regards and tia, Georg --=20 Georg Wilckens <> Enjoy life ... This is not a rehearsal. --QNDPHrPUIc00TOLW Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see iD8DBQE6p/kyMhml2MWI6O0RAjqqAKCdxw3G0UbjNvvlmt8GWclg07XxdACfQo6z fUMMLx/Tw8LoHjLNK5umNb0= =igfP -----END PGP SIGNATURE----- --QNDPHrPUIc00TOLW--