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+.ll 6i
+.pl 10.5i
+.\" @(#)skey.1 1.1 10/28/93
+.\"
+.lt 6.0i
+.TH KEY 1 "28 October 1993"
+.AT 3
+.SH NAME
+S/key \- A procedure to use one time passwords for accessing computer systems.
+.SH DESCRIPTION
+.I S/key
+is a procedure for using one time password to authenticate access to
+computer systems. It uses 64 bits of information transformed by the
+MD4 algorithm. The user supplies the 64 bits in the form of 6 English
+words that are generated by a secure computer.
+Example use of the S/key program
+.I key
+.sp
+ Usage example:
+.sp 0
+ >key 99 th91334
+.sp 0
+ Enter password: <your secret password is entered here>
+.sp 0
+ OMEN US HORN OMIT BACK AHOY
+.sp 0
+ >
+.sp
+The programs that are part of the S/Key system are keyinit, key, and
+keyinfo. Keyinit is used to get your ID set up, key is
+used to get the one time password each time,
+keyinfo is used to extract information from the S/Key database.
+.sp
+When you run "keyinit" you inform the system of your
+secret password. Running "key" then generates the
+one-time passwords, and also requires your secret
+password. If however, you misspell your password
+while running "key", you will get a list of passwords
+that will not work, and no indication about the problem.
+.sp
+Password sequence numbers count backward from 99. If you
+don't know this, the syntax for "key" will be confusing.
+.sp
+You can enter the passwords using small letters, even
+though the "key" program gives them in caps.
+.sp
+Macintosh and a general purpose PC use
+are available.
+.sp
+Under FreeBSD, you can control, with /etc/skey.access, from which
+hosts and/or networks the use of S/Key passwords is obligated.
+.LP
+.SH SEE ALSO
+.BR keyinit(1),
+.BR key(1),
+.BR keyinfo(1)
+.BR skey.access(5)
+.SH AUTHOR
+Phil Karn, Neil M. Haller, John S. Walden, Scott Chasin