[Q] key vs subkey.

Neil Williams linux@codehelp.co.uk
Sun May 11 21:30:02 2003

Hash: SHA1

On Sunday 11 May 2003 6:42 pm, Daniel Carrera wrote:
> Hello all,
> Thanks for all the help.  I'm learning this stuff pretty quickly.  The
> resources have been very useful.

I still can't find your key though. Have you sent it to a keyserver?

> I'm currently figuring out subkeys.  This is what I know so far:
>  - I have a unique DSA key for signing.
>  - I can have multiple ElGamal keys for encription.  These are the
>    subkeys.

(also unique)

>  - The command below tells me that my 1024-bit DSA key has a KeyID
>    0FEBCEC3, and that of my 2048-bit ElGamal key is 0D1C25EC.
>   dcarrera ~ $ gpg --fingerprint daniel
>   pub  1024D/0FEBCEC3 2003-05-10 Daniel Carrera (PhD Student, Math)
>        <dcarrera@math.umd.edu>
>      Key fingerprint = C678 4F28 6418 6A62 F186  98FC 9E04 B9A0 0FEB CEC3
>   sub  2048g/0D1C25EC 2003-05-10 [expires: 2005-05-09]
> So far so good?  Now my questions:
> -  What's the difference between the fingerprint and the KeyID?

The fingerprint is a summary of the key that is used to verify that the key I 
eventually download from a keyserver is the same key as you are using. Each 
key has a unique fingerprint. The KeyID is used to identify the key - like a 
name, smaller and more memorable than an entire fingerprint.

> -  Does only the signing key have a fingerprint?

Pass. Someone else here will undoubtedly know that.

> -  Which KeyID do I use to generate my public key?

Do you mean export? You have already generated the public key. To export the 
key, use 0FEBCEC3. (same whether you are exporting to a file or to a 
keyserver (hint)).

>    I figure it must be the ElGamal one.
You already said the ElGamal is for encryption.

> Thanks for the help,

- -- 

Neil Williams


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