popa3d v0.4 contributed Kerberos v4 and APOP authentication patches
By OpenWall Project [Thanks to Solar Designer] 5/30/2000
Dug Song has contributed Kerberos v4 (KPOP) and APOP authentication patches for popa3d v0.4. I've mirrored them into popa3d/contrib on the FTP and added links to the popa3d page at the usual location:
http://www.openwall.com/popa3d/
Please note that both of these patches are "unofficial"; while I have plans to support APOP some time in the future (possibly in v0.5), the database format will likely differ. Also be aware that APOP does not necessarily improve security: it requires that plaintext passwords be stored at the server, and its challenge/response pairs are vulnerable to offline "dictionary attacks".