Ski is an S/Key (one-time pad or password)
calculator, with handy features such as storing
your passphrases in the system keychain and
automatic calculation against challenges on the
pasteboard.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.