Description:

The OPIE suite of programs.

OPIE is an implementation of the One-Time Password (OTP) System that
is being considered for the Internet standards-track. OPIE provides a
one-time password system. The system should be secure against the
passive attacks now commonplace on the Internet (see RFC 1704 for more
details). The system is vulnerable to active dictionary attacks,
though these are not widespread at present and can be detected through
proper use of system audit software.