17 Dec
2003
17 Dec
'03
11:17 p.m.
The cypherpunk formerly known as Deranged Mutant writes:
Wait... are unique IDs secret from others? Can they share theirs with ea. other without compromising something?
Maybe using a hash of their combined secret ideas (adding them, or mixing the bits... how long is the unique ID?) can be used to generate a "key" to exchange other information....
The fundamental problem is that Eve and her sisters get to hear both IDs when Alice and Bob exchange them. So Eve can also do the hash, XOR, or whatever. DH skirts this obstacle brilliantly. -Futplex <futplex@pseudonym.com>