User IDs and Sub-keys

[Ingo Klöcker]

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On Friday, March 16, 2001 11:12, skribe wrote:
> I'm new to GPG.  I don't understand how user IDs or additional
> sub-keys work. I've read the manual, the faq and browsed the last few
> months of archives for this list.  Perhaps I missed something. 
> Perhaps this is a problem with my email software (Kmail 2.1).
>
> What I am particulalrly interested in is being able to establish
> separate email IDs using the same key.  For instance, one for skribe
> and one for the name Joe Bloggs.  Currently, when I sign a document
> the default key (skribe) is used, even when I stipulate that the Joe
> Bloggs ID should be used in the email client.  This somewhat cramps
> my anonymity =).  Do I require separate and distinct key-pairs for
> this or is there a way to do it with the one key-pair.

Yes, you'll need two distinct key pairs for this. Different user IDs on 
a key pair are more or less simply aliases. If you export your public 
key to send it to someone all user IDs are included.

Unfortunately KMail currently only supports one (global) PGP user ID. 
Therefore you'll have to change the (global) PGP user ID everytime 
according to the key pair you want to use. Different PGP user IDs for 
different KMail identities will (very likely) be supported in an 
upcoming version of KMail.

Regards,
Ingo
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