Message authentication codes for the Network Time Protocol
Files
First author draft
Date
DOI
Authors
Malhotra, Aanchal
Goldberg, Sharon
Version
First author draft
OA Version
Citation
A. Malhotra, S. Goldberg. "Message Authentication Codes for the Network Time Protocol."
Abstract
RFC 5905 [RFC5905] states that Network Time Protocol (NTP) packets
should be authenticated by appending a 128-bit key to the NTP data,
and hashing the result with MD5 to obtain a 128-bit tag. This
document deprecates MD5-based authentication, which is considered to
be too weak, and recommends the use of AES-CMAC [RFC4493] as a
replacement.
Description
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