Protecting Network Time Security Messages with the Cryptographic Message Syntax (CMS)

Document Type Expired Internet-Draft (ntp WG)
Last updated 2016-08-28 (latest revision 2016-02-25)
Stream IETF
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document (wg milestone: Feb 2016 - WGLC Protecting Netw... )
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IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes a convention for using the Cryptographic Message Syntax (CMS) to protect the messages in the Network Time Security (NTS) protocol. NTS provides authentication of time servers as well as integrity protection of time synchronization messages using Network Time Protocol (NTP) or Precision Time Protocol (PTP).


Dieter Sibold (
Kristof Teichel (
Stephen Roettger (
Russ Housley (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)