secret- and public-key crypto

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On Sat, 18 Dec 2004, Kai Raven wrote:

> i have one question about the new symmetric and public-key encryption. 
> Is the same session key used or a separate one for each encryption?
===============

each encrypted message has one session key.

if you encrypt one message to multiple people, they all use their secret 
keys to decrypt the same session key, which is then used to decrypt the 
message.

if you send a million encrypted messages to one person, each message will 
have a unique session key.

Hybrid ciphers
http://www.gnupg.org/gph/en/manual.html#AEN210


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