http://www.rfc-editor.org/rfc/rfc2943.txt
RFC 2943: TELNET Authentication Using DSA, R. Housley, T. Horting, P. Yee2000-09-01T23:00:00-00:00This document defines a telnet authentication mechanism using the Digital Signature Algorithm (DSA). It relies on the Telnet Authentication Option. [STANDARDS-TRACK]