pam_kcoda was written by Robin Gareus <robin@gareus.org> in 1999.
Ivan Popov <pin@math.chalmers.se> added kerberos support and maintained 
pam_kcoda from 2001 to 2006.

Neil Horman supplied patches and packages pam_kcoda for redhat.

PAM goes back to 
 Andrew Morgan <morgan@parc.power.net> 
 Thorsten Kukuk <kukuk@suse.de>