> 3. QE and man in the middle > > NOW we are in a position to see how the combination of QE and > key mixing can actually buy us something! Consider the plight > of the man in the middle when both are being used. She cannot > passively eavesdrop and record for further analysis because of > the nature of the quantum transmission. She cannot actively > eavesdrop (by doing the above and recording the raw data for > further analysis) because she does not currently have the shared > key so she cannot mix out and mix in the link key information as > described above. > > Pretty subtle, eh?
So long as they don't have the key, they can neither passively nor actively eavesdrop a quantum encryption link. So what does the mixing buy you? > It's interesting that it is the only-one-listener nature of > the quantum encryption process that forces the distinction > between "passive eavesdropping" (just listening to the wire) > and "passive man-in-the-middle" which involves copying the > data from A to B and from B to A without trying to understand > what it all means until a later analysis time. True. But so long as you can't passively eavesdrop, you can't actively eavesdrop. So what does the mixing buy you that you didn't already have? DS ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]