default Cipher and Pubkey algo

[Georg Wilckens]

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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?
>=20
> 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 <andrew@mcdonald.org.uk>
>      S7 S10 S3 S4 H3 H2 Z2 Z1
> (2)  Andrew McDonald <A.D.McDonald@bcs.org.uk>
>      S7 S10 S3 S4 H3 H2 Z2 Z1
> -X-X-
>=20
> 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 <durandal@nfinity.de>"
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 <durandal@nfinity.de>

Enjoy life ... This is not a rehearsal.

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