Transport Layer Security (TLS) Transport Mapping for Syslog
RFC 5425

Document Type RFC - Proposed Standard (March 2009; Errata)
Last updated 2013-03-02
Replaces draft-miao-syslog-transport-tls
Stream IETF
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Stream WG state (None)
Consensus Unknown
Document shepherd No shepherd assigned
IESG IESG state RFC 5425 (Proposed Standard)
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Responsible AD Pasi Eronen
Send notices to syslog-chairs@ietf.org
Network Working Group                                       F. Miao, Ed.
Request for Comments: 5425                                    Y. Ma, Ed.
Category: Standards Track                            Huawei Technologies
                                                         J. Salowey, Ed.
                                                     Cisco Systems, Inc.
                                                              March 2009

      Transport Layer Security (TLS) Transport Mapping for Syslog

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) 2009 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 (http://trustee.ietf.org/license-info).
   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Abstract

   This document describes the use of Transport Layer Security (TLS) to
   provide a secure connection for the transport of syslog messages.
   This document describes the security threats to syslog and how TLS
   can be used to counter such threats.

Miao, et al.                Standards Track                     [Page 1]
RFC 5425            TLS Transport Mapping for Syslog          March 2009

Table of Contents

   1. Introduction ....................................................3
      1.1. Terminology ................................................3
   2. Security Requirements for Syslog ................................3
   3. Using TLS to Secure Syslog ......................................4
   4. Protocol Elements ...............................................5
      4.1. Port Assignment ............................................5
      4.2. Initiation .................................................5
           4.2.1. Certificate-Based Authentication ....................5
           4.2.2. Certificate Fingerprints ............................6
           4.2.3. Cryptographic Level .................................7
      4.3. Sending Data ...............................................7
           4.3.1. Message Length ......................................7
      4.4. Closure ....................................................8
   5. Security Policies ...............................................8
      5.1. End-Entity Certificate Based Authorization .................8
      5.2. Subject Name Authorization .................................9
      5.3. Unauthenticated Transport Sender ...........................9
      5.4. Unauthenticated Transport Receiver ........................10
      5.5. Unauthenticated Transport Receiver and Sender .............10
   6. Security Considerations ........................................10
      6.1. Authentication and Authorization Policies .................10
      6.2. Name Validation ...........................................11
      6.3. Reliability ...............................................11
   7. IANA Considerations ............................................11
      7.1. Port Number ...............................................11
   8. Acknowledgments ................................................11
   9. References .....................................................12
      9.1. Normative References ......................................12
      9.2. Informative References ....................................12

Miao, et al.                Standards Track                     [Page 2]
RFC 5425            TLS Transport Mapping for Syslog          March 2009

1.  Introduction
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