OTP(1) UNIX Reference Manual OTP(1) NNAAMMEE oottpp - manages one-time passwords SSYYNNOOPPSSIISS oottpp [--ddhhlloorr] [--ff _a_l_g_o_r_i_t_h_m] [--uu _u_s_e_r] _s_e_q_u_e_n_c_e_-_n_u_m_b_e_r _s_e_e_d DDEESSCCRRIIPPTTIIOONN The oottpp 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 _s_e_q_u_e_n_c_e_-_n_u_m_b_e_r and _s_e_e_d. Options are: --dd To delete a one-time password. --ff Choose a different _a_l_g_o_r_i_t_h_m from the default md5. Pick any of: md4, md5, and sha. --hh For getting a help message. --ll List the current table of one-time passwords. --oo To open (unlock) the otp-entry for a user. --rr To renew a one-time password series. This operation can be per- formed 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 sup- plied _s_e_q_u_e_n_c_e_-_n_u_m_b_e_r and _s_e_e_d. --uu To choose a different _u_s_e_r to set one-time passwords for. This only works when running oottpp as root. SSEEEE AALLSSOO otpprint(1) KTH-KRB November 17, 1996 1