RFC 1961 (rfc1961) - Page 1 of 9

GSS-API Authentication Method for SOCKS Version 5

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Network Working Group                                         P. McMahon
Request for Comments: 1961                                           ICL
Category: Standards Track                                      June 1996


           GSS-API Authentication Method for SOCKS Version 5

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.

Table of Contents

         1. Purpose ............................................ 1
         2. Introduction ....................................... 1
         3. GSS-API Security Context Establishment ............. 2
         4. GSS-API Protection-level Options ................... 5
         5. GSS-API Per-message Protection ..................... 7
         6. GSS-API Security Context Termination ............... 8
         7. References ......................................... 8
         8. Acknowledgments .................................... 8
         9. Security Considerations ............................ 8
         10. Author's Address .................................. 9

1. Purpose

   The protocol specification for SOCKS Version 5 specifies a
   generalized framework for the use of arbitrary authentication
   protocols in the initial SOCKS connection setup.  This document
   provides the specification for the SOCKS V5 GSS-API authentication
   protocol, and defines a GSS-API-based encapsulation for provision of
   integrity, authentication and optional confidentiality.

2. Introduction

   GSS-API provides an abstract interface which provides security
   services for use in distributed applications, but isolates callers
   from specific security mechanisms and implementations.

   GSS-API peers achieve interoperability by establishing a common
   security mechanism for security context establishment - either
   through administrative action, or through negotiation.  GSS-API is
   specified in [RFC 1508], and [RFC 1509].  This specification is
   intended for use with implementations of GSS-API, and the emerging



McMahon                     Standards Track
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