EP 4305802 A1 20240117 - AUTHENTICATING PLAINTEXT AND CIPHERTEXT IN A VEHICLE-TO-EVERYTHING (V2X) MESSAGE
Title (en)
AUTHENTICATING PLAINTEXT AND CIPHERTEXT IN A VEHICLE-TO-EVERYTHING (V2X) MESSAGE
Title (de)
AUTHENTIFIZIERUNG VON KLARTEXT UND CHIFFRETEXT IN EINER VEHICLE-TO-EVERYTHING (V2X)-NACHRICHT
Title (fr)
AUTHENTIFICATION DE TEXTE EN CLAIR ET DE TEXTE CHIFFRÉ DANS UN MESSAGE V2X (VÉHICULE À TOUT)
Publication
Application
Priority
- US 202163158955 P 20210310
- US 202163180450 P 20210427
- US 202117497120 A 20211008
- US 2022011077 W 20220104
Abstract (en)
[origin: WO2022191908A1] Methods and devices and systems for implementing the methods for authenticating plaintext and ciphertext in a vehicle-to-everything (V2X) message include generating ciphertext from a plaintext message to be transmitted in a V2X message, generating a hash of the ciphertext and a hash of the plaintext message, generating a digital signature of a concatenation of the hash of the ciphertext and the hash of the plaintext message, and sending to a network node a V2X message that includes the ciphertext, the hash of the plaintext message, and the digital signature. The hash of the plaintext message, and the digital signature may be configured to enable the network node to verify that the V2X endpoint node signed the concatenation.
IPC 8 full level
H04L 9/32 (2006.01)
CPC (source: EP KR)
H04L 9/3239 (2013.01 - EP KR); H04L 9/3247 (2013.01 - EP KR); H04L 2209/68 (2013.01 - EP KR); H04L 2209/76 (2013.01 - EP KR); H04L 2209/84 (2013.01 - EP KR)
Citation (search report)
See references of WO 2022191908A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022191908 A1 20220915; BR 112023017604 A2 20231010; EP 4305802 A1 20240117; JP 2024512289 A 20240319; KR 20230153382 A 20231106; TW 202236873 A 20220916
DOCDB simple family (application)
US 2022011077 W 20220104; BR 112023017604 A 20220104; EP 22701452 A 20220104; JP 2023552347 A 20220104; KR 20237029655 A 20220104; TW 111100222 A 20220104