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Re: PGP public key signatures

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Hi George,

On 2012-07-24, George <glind98@gmail.com> wrote:
> I have read the latest RFC am still unsure about PGP public key
> signatures.  The public key is made up of the Public Key packet, the
> User ID packet and the Signature packet.   What is the purpose if the
> signature packet.  Is it signed with the corresponding private key?

What are you worrying about?

1. Alice signs a message with her private key.
2. Bob gets this message and wants to verify the author:
   He got Alice' public key and can now calculate whether the message
   was modified or not.

diagram snippet of an older lecture of mine:

   o-----------------------------------------------> Alg. --> msg
   |                                                  A
pubkey                                                |       pubkey
                                                      |
A  msg  -->  Alg. --> msg sig+ --> transport --> msg sig+ --> msg  B
              A
seckey -passw-'                                               seckey

-- 
Yours Sincerely
Kai Burghardt

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PGP public key signatures George <glind98@gmail.com> - 2012-07-24 11:35 -0700
  Re: PGP public key signatures Kai Burghardt <wiz@KaiBurghardt.de> - 2012-10-26 23:00 +0000

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