
Oh? Hellman said ``each user will get to choose his or her own key.''
That's the key which I called K_P, the session key. According to
Hellman, if Alice and Bob are communicating with the Clipper Chip,
then Alice chooses ``her own key'' and Bob chooses ``his own key.''
This is incompatible with the suggestion that when Alice and Bob are
talking, they use a _common_ K_P, chosen by classical or public-key
approaches.

The protocol/key-management description published so far is either
incomplete or incorrect. It leaves me with no idea of how the system
would actually _work_. I hope the CPSR FOIA request succeeds so that
we get full details.