Re: Compound authentication "issue"
Lawrence Greenfield <[email protected]> Wed, 27 Nov 2002 15:35:53 -0500
| Newsgroups | gmane.ietf.sacred |
|---|---|
| Message-ID | <[email protected]> |
Upon further consideration, isn't the man-in-the-middle attack thwarted by the inclusion of "digest-uri-value" in the hash? The DIGEST-MD5 client hash includes a client-selected "digest-uri-value" which in sacred's case will be "sacred/<host>". In a MITM attack, those values will be something else. A MITM attack as described in the WG meeting is thwarted because digest-uri-value wouldn't match what the sacred server is expecting. If it would make people feel better, we can mention this safeguard in the security considerations section. Larry