NAME

     otp — manages one-time passwords

SYNOPSIS

     otp [-dhlor] [-f algorithm] [-u user] sequence-number seed

DESCRIPTION

     The otp program initializes and updates your current series of one-time passwords (OTPs).

     Use this to set a new series of one-time passwords.  Only perform this on the console or
     over an encrypted link as you will have to supply your pass-phrase.  The other two
     parameters are sequence-number and seed.

     Options are:

     -d      To delete a one-time password.

     -f      Choose a different algorithm from the default md5.  Pick any of: md4, md5, and sha.

     -h      For getting a help message.

     -l      List the current table of one-time passwords.

     -o      To open (unlock) the otp-entry for a user.

     -r      To renew a one-time password series.  This operation can be performed over an
             potentially eavesdropped link because you do not supply the pass-phrase.  First you
             need to supply the current one-time password and then the new one corresponding to
             the supplied sequence-number and seed.

     -u      To choose a different user to set one-time passwords for.  This only works when
             running otp as root.

SEE ALSO

     otpprint(1)