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Re: pre-shared key v RSA encryption or RSA signatureauthentication modes



At 12:06 PM -0500 3/25/02, Uri Blumenthal wrote:
On Monday 25 March 2002 11:08, Stephen Kent wrote:
 I'm glad you mentioned what I consider to be a significant downside
 of pre-shared secrets, although we come to very different
 conclusions.  It is not too hard to imagine an attack in which the
 initiator connects to the wrong address, e.g., via some form of DNS
 attack, and the fake responder collects the initiator's secret, then
 drops the connection.

I thought this authentication method is YEARS gone? A-la HTTP Basic Authentication?

Isn't practically everybody today using some form of challenge-response
auth with pre-shared secrets? [real-life examples would be helpful.]
--

There have been messages posted to the list that suggest otherwise, but it would be useful to get some data points.


Steve