62 lines
1.5 KiB
Groff
62 lines
1.5 KiB
Groff
.\" $NetBSD: skey.1,v 1.5 1996/09/19 19:44:32 thorpej Exp $
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.\"
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.\" from: @(#)skey.1 1.1 10/28/93
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.\"
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.Dd 28 October 1993
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.Dt SKEY 1
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.Os NetBSD 4
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.Sh NAME
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.Nm S/key
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.Nd a one time password system
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.Sh DESCRIPTION
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.Nm S/key
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is a procedure for using one time passwords to authenticate access to
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computer systems. It uses 64 bits of information transformed by the
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MD4 algorithm. The user supplies the 64 bits in the form of 6 English
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words that are generated by a secure computer.
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Example use of the S/key program
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.Xr skey 1 :
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.sp
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.sp 0
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% skey 99 th91334
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.sp 0
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Enter password: <your secret password is entered here>
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.sp 0
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OMEN US HORN OMIT BACK AHOY
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.sp 0
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%
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.Pp
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The programs that are part of the S/Key system are:
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.Bl -tag -width skeyinit...
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.It Xr skeyinit 1
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used to setup your S/Key.
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.It Xr skey 1
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used to get the one time password each time.
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.It Xr skeyinfo 1
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used to extract information from the S/Key database.
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It tells you what your next challenge will be.
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.El
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.Pp
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When you run
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.Xr skeyinit 1
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you inform the system of your
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secret password. Running
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.Xr skey 1
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then generates the
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one-time passwords, and also requires your secret
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password. If however, you misspell your password
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while running
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.Xr skey 1 ,
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you will get a list of passwords
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that will not work, and no indication about the problem.
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.Pp
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Password sequence numbers count backward from 99.
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You can enter the passwords using small letters, even though
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.Xr skey 1
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prints them capitalized.
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.Sh SEE ALSO
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.Xr skeyinit 1 ,
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.Xr skeyinfo 1
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.Sh AUTHORS
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Phil Karn, Neil M. Haller, John S. Walden, Scott Chasin
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