Error with encrypting: unusable public key

[Laurent Jumet]

Hello Timo !

Timo Schulz <twoaday at gmx.net> wrote:

>>> Thanx, I missed that. So this is one of the "sign only"
>>> keys and to enable encryption, one would add an encryption
>>> only subkey?
>>
>>     Not on that one, it's a RSA key.

> But if I see it correctly, it's _no_ v3 key so you can
> add a subkey to this key even if it is RSA (which is
> no limitation in OpenPGP).

    I was (wrongly) thinking that a RSA key wasn't able to hold subkeys.
    This one is v4:

=== Begin Windows Clipboard ===
:public key packet:
    version 4, algo 1, created 1164120402, expires 0
    pkey[0]: [2048 bits]
    pkey[1]: [17 bits]
:user ID packet: "David A. Mundie (Dodo Magnifico) <dmundie at qcert.org>"
:signature packet: algo 1, keyid 09F096B7CC21E10F
    version 4, created 1164120402, md5len 0, sigclass 13
    digest algo 2, begin of digest 17 3f
    hashed subpkt 2 len 4 (sig created 2006-11-21)
    hashed subpkt 27 len 1 (key flags: 03)
    hashed subpkt 11 len 5 (pref-sym-algos: 9 8 7 3 2)
    hashed subpkt 21 len 3 (pref-hash-algos: 2 8 3)
    hashed subpkt 22 len 3 (pref-zip-algos: 2 3 1)
    hashed subpkt 30 len 1 (features: 01)
    hashed subpkt 23 len 1 (key server preferences: 80)
    subpkt 16 len 8 (issuer key ID 09F096B7CC21E10F)
    data: [2045 bits]
=== End Windows Clipboard ===

-- 
Laurent Jumet
      KeyID: 0xCFAF704C