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PGP public key signatures
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George
Jul 24, 2012, 2:35:26 PM7/24/12
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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?
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?
Kai Burghardt
Oct 26, 2012, 7:00:35 PM10/26/12
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Hi George,
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
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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