RFC 2946 (rfc2946) - Page 1 of 8

Telnet Data Encryption Option

Network Working Group                                           T. Ts'o
Request for Comments: 2946                             VA Linux Systems
Category: Standards Track                                September 2000


                     Telnet Data Encryption Option

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

Abstract

   This document describes a the telnet encryption option as a generic
   method of providing data confidentiality services for the telnet data
   stream.  While this document summarizes currently utilized encryption
   types and codes, it does not define a specific encryption algorithm.
   Separate documents are to be published defining implementations of
   this option for each encryption algorithm.


1.  Command Names and Codes

   ENCRYPT         38

       Encryption Commands
       IS               0
       SUPPORT          1
       REPLY            2
       START            3
       END              4
       REQUEST-START    5
       REQUEST-END      6
       ENC_KEYID        7
       DEC_KEYID        8

       Encryption Types
       NULL             0
       DES_CFB64        1
       DES_OFB64        2



Ts'o                        Standards Track