SKEY(1)                     NetBSD Reference Manual                    SKEY(1)

NNAAMMEE
     sskkeeyy - interface to the S/Key one time password system

SSYYNNOOPPSSIISS
     sskkeeyy [--nn _c_o_u_n_t] [--pp _p_a_s_s_w_o_r_d] _s_e_q_u_e_n_c_e_# [/] _k_e_y

DDEESSCCRRIIPPTTIIOONN
     _S_/_k_e_y is a procedure for using one time passwords 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_/_k_e_y
     program sskkeeyy:

         % skey  99 th91334
         Enter password: <your secret password is entered here>
         OMEN US HORN OMIT BACK AHOY
         %

     The programs that are part of the _S_/_K_e_y system are:

     skeyinit(1)  used to setup your S/Key.

     sskkeeyy         used to get the one time password each time.

     skeyinfo(1)  used to extract information from the S/Key database.  It
                  tells you what your next challenge will be.

     When you run skeyinit(1) you inform the system of your secret password.
     Running sskkeeyy then generates the one-time passwords, and also requires
     your secret password.  If however, you misspell your password while run-
     ning skey(1),  you will get a list of passwords that will not work, and
     no indication about the problem.

     Password sequence numbers count backward from 99.  You can enter the
     passwords using small letters, even though skey(1) prints them capital-
     ized.

     The --nn _c_o_u_n_t argument asks for _c_o_u_n_t password sequences to be printed out
     ending with the requested sequence number.

     The --pp _p_a_s_s_w_o_r_d allows the user to specify the _S_/_k_e_y password on the com-
     mand line.

SSEEEE AALLSSOO
     skeyaudit(1),  skeyinfo(1),  skeyinit(1)

AAUUTTHHOORRSS
     Phil Karn, Neil M. Haller, John S. Walden, Scott Chasin

NetBSD                          28 October 1993                              1
