出典:Wikipedia
出典:『Wikipedia』 (2011/02/09 11:57 UTC 版)
OTPW is a one-time password system developed for authentication in Unix-like operating systems by Markus Kuhn. A user's real password is not directly transmitted across the network. Rather, the real password is combined with a short set of characters (constant secret) and a set of one-time tokens to form a single-use password. As the single-use password is only used once, passwords intercepted by a password sniffer or key logger are not useful to an attacker.