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1. WO2020064919 - SECURE TIME SYNCHRONIZATION

Publication Number WO/2020/064919
Publication Date 02.04.2020
International Application No. PCT/EP2019/076013
International Filing Date 26.09.2019
IPC
H04L 9/32 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system
H04L 29/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
H04J 3/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
3Time-division multiplex systems
02Details
06Synchronising arrangements
CPC
H04J 3/0658
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
3Time-division multiplex systems
02Details
06Synchronising arrangements
0635Clock or time synchronisation in a network
0638Clock or time synchronisation among nodes; Internode synchronisation
0658Clock or time synchronisation among packet nodes
H04L 2209/38
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
2209Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
38Chaining, e.g. hash chain or certificate chain
H04L 63/0823
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
08for supporting authentication of entities communicating through a packet data network
0823using certificates
H04L 9/32
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
H04L 9/3242
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
3236using cryptographic hash functions
3242involving keyed hash functions, e.g. message authentication codes [MACs], CBC-MAC or HMAC
H04L 9/3273
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
3271using challenge-response
3273for mutual authentication
Applicants
  • GORGY TIMING [FR]/[FR]
  • INSTITUT POLYTECHNIQUE DE GRENOBLE [FR]/[FR]
  • UNIVERSITE GRENOBLE ALPES [FR]/[FR]
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE [FR]/[FR]
Inventors
  • DUDA, Andrzej
  • MKACHER, Faten
Agents
  • CABINET BEAUMONT
Priority Data
185887327.09.2018FR
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SECURE TIME SYNCHRONIZATION
(FR) SYNCHRONISATION TEMPORELLE SÉCURISÉE
Abstract
(EN)
The present disclosure relates to a time client device comprising a network interface for communicating over a communication network, the time client device being configured to: receive, over the communication network from an authentication server (AS), a first key, and a first value containing the first key in encrypted form; generate a second value using the first key; and during a time synchronization phase, transmit to a time server (TS) the first and second values.
(FR)
L'invention concerne un dispositif de client temporel comprenant une interface de réseau permettant de communiquer sur un réseau de communication. Le dispositif de client temporel est conçu pour : recevoir d'un serveur d'authentification (AS), sur le réseau de communication, une première clé, et une première valeur contenant la première clé sous forme chiffrée; générer une seconde valeur au moyen de la première clé; et au cours d'une phase de synchronisation temporelle, transmettre à un serveur temporel (TS) la première et la seconde valeur.
Latest bibliographic data on file with the International Bureau