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A Pseudo-Random Function (PRF) for the Kerberos V Generic Security Service Application Program Interface (GSS-API) Mechanism (RFC7802) Disclosure Number: IPCOM000245372D
Original Publication Date: 2016-Mar-01
Included in the Prior Art Database: 2016-Mar-04
Document File: 16 page(s) / 14K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

S. Emery: AUTHOR [+2]


This document specifies the Kerberos V GSS-API mechanism's [RFC4121] pseudo-random function corresponding to [RFC4401]. The function is a "PRF+" style construction. For more information, see [RFC4401], [RFC2743], [RFC2744], and [RFC4121].

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Internet Engineering Task Force (IETF)                          S. Emery Request for Comments: 7802                                        Oracle Obsoletes: 4402                                              N. Williams Category: Standards Track                                   Cryptonector ISSN: 2070-1721                                               March 2016

    A Pseudo-Random Function (PRF) for the Kerberos V Generic Security        Service Application Program Interface (GSS-API) Mechanism


   This document defines the Pseudo-Random Function (PRF) for the    Kerberos V mechanism for the Generic Security Service Application    Program Interface (GSS-API), based on the PRF defined for the    Kerberos V cryptographic framework, for keying application protocols    given an established Kerberos V GSS-API security context.

   This document obsoletes RFC 4402 and reclassifies that document as    Historic.  RFC 4402 starts the PRF+ counter at 1; however, a number    of implementations start the counter at 0.  As a result, the original    specification would not be interoperable with existing    implementations.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

 Emery & Williams             Standards Track                    [Page 1]
 RFC 7802              A PRF for the Kerberos V Mech           March 2016

 Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal    Provisions Relating to IETF Documents    ( in effect on the date of    publication of this document.  Please review these documents    carefully, as they describe your rights and restrictions with respect    to this document.  Code Components extracted from this document must    include Simplified BSD License text as described in Section 4.e of    the Trust Legal Provisions and are provided without warranty as    described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .  ...