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)

KTH-KRB                                         November 17, 1996                                         OTP(1)