Manual Pages  — OPIEKEYS

/etc/opiekeys - OPIE database of user key information

DEPRECATION NOTICE DESCRIPTION SEE ALSO AUTHOR CONTACT

OPIE is deprecated, and may not be available in FreeBSD 14.0 and later.

The opiekeys file contains user information used by the OPIE software to authenticate users. The opiekeys file is backwards compatible with the S/Key /etc/skeykeys database file, but only if the hashing algorithm (MD4 and MD5) is the same between S/Key and OPIE (i.e., MD5 OPIE cannot use MD4 S/Key keys). The opiekeys file consists of six fields separated by spaces (tabs are properly interpreted, but spaces should be used instead) as follows:

Field   Description
name    User's login name.
sequenceUser's sequence number.
seed    User's seed.
key     User's last response (hex).
date    Last change date.
time    Last change time.

Bellcore's S/Key was written by Phil Karn, Neil M. Haller, and John S. Walden of Bellcore. OPIE was created at NRL by Randall Atkinson, Dan McDonald, and Craig Metz.

S/Key is a trademark of Bell Communications Research (Bellcore).

OPIE is discussed on the Bellcore "S/Key Users" mailing list. To join, send an email request to:

skey-users-request@thumper.bellcore.com