[rfc-dist] RFC 8573 on Message Authentication Code for the Network Time Protocol

rfc-editor@rfc-editor.org Mon, 24 June 2019 02:48 UTC

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A new Request for Comments is now available in online RFC libraries.

        
        RFC 8573

        Title:      Message Authentication Code for the 
                    Network Time Protocol 
        Author:     A. Malhotra,
                    S. Goldberg
        Status:     Standards Track
        Stream:     IETF
        Date:       June 2019
        Mailbox:    aanchal4@bu.edu, 
                    goldbe@cs.bu.edu
        Pages:      5
        Characters: 10055
        Updates:    RFC 5905

        I-D Tag:    draft-ietf-ntp-mac-06.txt

        URL:        https://www.rfc-editor.org/info/rfc8573

        DOI:        10.17487/RFC8573

The Network Time Protocol (NTP), as described in RFC 5905, states
that NTP packets should be authenticated by appending NTP data to a
128-bit key and hashing the result with MD5 to obtain a 128-bit tag.
This document deprecates MD5-based authentication, which is
considered too weak, and recommends the use of AES-CMAC as described
in RFC 4493 as a replacement.

This document is a product of the Network Time Protocol Working Group of the IETF.

This is now a Proposed Standard.

STANDARDS TRACK: 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 Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the 
standardization state and status of this protocol.  Distribution of this 
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