!!! Overview [{$pagename}] ([RFC 2289]) describes a [One-Time password] [authentication] system ([[OTP]). The system provides authentication for system access (login) and other applications requiring authentication that is secure against passive attacks based on replaying captured reusable passwords. [{$pagename}] evolved from the [S-KEY One-Time Password System] that was released by Bellcore. !! More Information There might be more information for this subject on one of the following: [{ReferringPagesPlugin before='*' after='\n' }]