17 Dec
2003
17 Dec
'03
11:17 p.m.
From: lmccarth@ducie.cs.umass.edu If you're not going to make the public key public, why use public key cryptography at all ? Save time and effort and use a symmetric cipher. You can't do authentication with a shared secret key, because there's nothing to differentiate the two sides of the link. In addition, a closely held public key might be held by 10 people; with secret keys there are 90 different private keys instances to manage. Eric