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Time synchronization
Time synchronization

Version management

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!!! Overview
[{$pagename}] is the process that attempts to ensure all systems within a [Domain] have the same [Time]
Two primary [Operating System] [{$pagename}] [Services]:
* [Network Time Protocol] ([NTP])
* [Windows Time service]
* [Roughtime]
* [Network Time Security] ([NTS])
[{$pagename}] is essential to [Internet] [security] as many security [protocols] and other applications require [{$pagename}] [MCBG] ([RFC 7384]). Unfortunately widely deployed protocols such as the [Network Time Protocol] ([NTP]) ([RFC 5905]) lack essential [Security Considerations], and even newer [protocols] like [Network Time Security] ([NTS]) [I-D.ietf-ntp-using-nts-for-ntp] fail to ensure that the [servers] behave correctly. [Authenticated] time servers prevents network adversaries from modifying time packets. An [authenticated] time server still has full control over the contents of time packet and may go rogue.
[Roughtime] [protocol] provides [cryptographic proof] of malfeasance, enabling clients to detect and prove to a [Third-party] [server]'s attempts to influence the time a client computes.
%%zebra-table
%%sortable
%%table-filter
||[Protocol]||[Authenticated] Server||Server [Malfeasance] [Evidence]
|[NTP], Chronos|N|N
|[NTP]-[MD5]|Y*|N
|[NTP-Autokey]|Y**|N
|[NTS]|Y|N
|[Roughtime]|Y|Y
/%
/%
/%
[Security] Properties of current protocols
* Y* For security issues with [Symmetric Key] based NTP-MD5 authentication, please refer to [Message Authentication Code] for the [Network Time Protocol] draft
* Y** For security issues with [NTP-Autokey] [Public Key] [Authentication], refer to [NTP-Autokey]
!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
----
* [#1] - [draft-roughtime-aanchal-00|https://tools.ietf.org/id/draft-roughtime-aanchal-00.html|target='_blank'] - based on information obtained 2019-06-25
This page (revision-1) was last changed on 29-Nov-2024 16:16 by UnknownAuthorTop