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1. WO2020113189 - TECHNIQUES FOR IMPROVING SECURITY OF ENCRYPTED VEHICLE SOFTWARE UPDATES

Publication Number WO/2020/113189
Publication Date 04.06.2020
International Application No. PCT/US2019/063884
International Filing Date 29.11.2019
IPC
G06F 8/65 2018.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
8Arrangements for software engineering
60Software deployment
65Updates
G06F 9/445 2018.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
9Arrangements for program control, e.g. control units
06using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
44Arrangements for executing specific programs
445Program loading or initiating
G06F 21/12 2013.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
10Protecting distributed programs or content, e.g. vending or licensing of copyrighted material
12Protecting executable software
CPC
G06F 21/572
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
50Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
57Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
572Secure firmware programming, e.g. of basic input output system [BIOS]
G06F 8/65
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
8Arrangements for software engineering
60Software deployment
65Updates
H04L 2209/80
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
80Wireless
H04L 2209/84
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
84Vehicles
H04L 63/0435
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
04for providing a confidential data exchange among entities communicating through data packet networks
0428wherein the data content is protected, e.g. by encrypting or encapsulating the payload
0435wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
H04L 9/0841
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
08Key distribution ; or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
0838Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
0841involving Diffie-Hellman or related key agreement protocols
Applicants
  • PACCAR INC.
Inventors
  • KRUGER, David R.
Agents
  • BRUESS, Steven C.
Priority Data
16/206,67830.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TECHNIQUES FOR IMPROVING SECURITY OF ENCRYPTED VEHICLE SOFTWARE UPDATES
(FR) TECHNIQUES D'AMÉLIORATION DE SÉCURITÉ DE MISES À JOUR DE LOGICIEL DE VÉHICULE CHIFFRÉES
Abstract
(EN)
Embodiments of the present disclosure generally relate to systems, devices, and methods wherein dynamically generated symmetric keys are used for encryption and decryption of software updates for vehicles. The symmetric keys are dynamically generated using a combination of information that ties a given symmetric key to a specific combination of a vehicle and the devices installed therein. The dynamic generation of the symmetric keys also uses a piece of random data generated by an intermediary server, which allows the intermediary server to validate devices before providing the piece of random data and thereby control access to the software updates. Use of the techniques disclosed herein provide heightened security, control, safety, and reliability for over-the-air software updates for vehicles.
(FR)
Selon des modes de réalisation, la présente invention concerne de manière générale des systèmes, des dispositifs et des procédés dans lesquels des clés symétriques produites de manière dynamique sont utilisées pour le chiffrement et le déchiffrement de mises à jour de logiciel pour des véhicules. Les clés symétriques sont produites dynamiquement en utilisant une combinaison d'informations qui associe une clé symétrique donnée à une combinaison spécifique d'un véhicule et des dispositifs installés dans celui-ci. La production dynamique des clés symétriques utilise également une donnée aléatoire produite par un serveur intermédiaire, ce qui permet au serveur intermédiaire de valider des dispositifs avant de fournir la donnée aléatoire et ainsi de contrôler l'accès aux mises à jour de logiciel. L'utilisation des techniques décrites dans la présente invention offre une sécurité, un contrôle, une sûreté et une fiabilité accrus pour des mises à jour de logiciel sans fil pour des véhicules.
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