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Status:

PROPOSED STANDARD

Authors:

D. Franke
D. Sibold
K. Teichel
M. Dansarie
R. Sundblad

Stream:

IETF

Source:

ntp (int)

Cite this RFC:TXT  | XML  |  BibTeX

DOI:  https://doi.org/10.17487/RFC8915

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Abstract

This memo specifies Network Time Security (NTS), a mechanism forusing Transport Layer Security (TLS) and Authenticated Encryptionwith Associated Data (AEAD) to provide cryptographic security for theclient-server mode of the Network Time Protocol (NTP).

NTS is structured as a suite of two loosely coupled sub-protocols.The first (NTS Key Establishment (NTS-KE)) handles initialauthentication and key establishment over TLS. The second (NTSExtension Fields for NTPv4) handles encryption and authenticationduring NTP time synchronization via extension fields in the NTPpackets, and holds all required state only on the client via opaquecookies.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.