TLS/SRP/X11 (TSX) Telnet is a secure Telnet client/server that uses SRP as strong password-based authentication and key-exchange mechanism, and SSL/TLS as an underlying Telnet transport security mechanism, both implemented as part of the Telnet standard. The document 'README.TLS' in the 'telnet' directory describes the following features supported by TSXtelnet in more detail: - TLS-based session security (draft-ietf-tn3270e-telnet-tls-05.txt) - Secure authentication with TLS: SRP, Kerberos V5 (draft-altman-rfc2944bis-01.txt and draft-altman-rfc2942bis-00.txt) - X11 connection forwarding (draft-altman-telnet-fwdx-02.txt)