draft-ietf-ntp-chronos-00.txt   draft-ietf-ntp-chronos-01.txt 
Network Working Group N. Rozen-Schiff Network Working Group N. Rozen-Schiff
Internet-Draft D. Dolev Internet-Draft D. Dolev
Intended status: Informational Hebrew University of Jerusalem Intended status: Informational Hebrew University of Jerusalem
Expires: September 5, 2020 T. Mizrahi Expires: March 7, 2021 T. Mizrahi
Huawei Network.IO Innovation Lab Huawei Network.IO Innovation Lab
M. Schapira M. Schapira
Hebrew University of Jerusalem Hebrew University of Jerusalem
March 4, 2020 September 3, 2020
A Secure Selection and Filtering Mechanism for the Network Time Protocol A Secure Selection and Filtering Mechanism for the Network Time Protocol
Version 4 Version 4
draft-ietf-ntp-chronos-00 draft-ietf-ntp-chronos-01
Abstract Abstract
The Network Time Protocol version 4 (NTPv4), as defined in RFC 5905, The Network Time Protocol version 4 (NTPv4), as defined in RFC 5905,
is the mechanism used by NTP clients to synchronize with NTP servers is the mechanism used by NTP clients to synchronize with NTP servers
across the Internet. This document specifies an extension to the across the Internet. This document specifies an extension to the
NTPv4 client, named Chronos, which is used as a "watchdog" alongside NTPv4 client, named Chronos, which is used as a "watchdog" alongside
NTPv4, and provides improved security against time shifting attacks. NTPv4, and provides improved security against time shifting attacks.
Chronos involves changes to the NTP client's system process only and Chronos involves changes to the NTP client's system process only and
is backwards compatible with NTPv4 servers. is backwards compatible with NTPv4 servers.
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This Internet-Draft will expire on September 5, 2020. This Internet-Draft will expire on March 7, 2021.
Copyright Notice Copyright Notice
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