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1. WO2022010549 - ANONYMOUS EVENT ATTESTATION WITH GROUP SIGNATURES

Publication Number WO/2022/010549
Publication Date 13.01.2022
International Application No. PCT/US2021/022506
International Filing Date 16.03.2021
IPC
H04L 9/32 2006.1
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 2006.1
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
G06F 21/33 2013.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
30Authentication, i.e. establishing the identity or authorisation of security principals
31User authentication
33using certificates
G06F 21/57 2013.1
GPHYSICS
06COMPUTING; CALCULATING OR 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
Applicants
  • GOOGLE LLC [US]/[US]
Inventors
  • WANG, Gang
  • YUNG, Marcel, M., Moti
Agents
  • WRIGHT, Christopher, D.
Priority Data
27595409.07.2020IL
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) ANONYMOUS EVENT ATTESTATION WITH GROUP SIGNATURES
(FR) ATTESTATION D'ÉVÉNEMENT ANONYME COMPRENANT DES SIGNATURES DE GROUPE
Abstract
(EN) Methods, systems, and computer media provide attestation tokens that protect the integrity of communications transmitted from client devices, while at the same time avoiding the use of stable device identifiers that could be used to track client devices or their users. In one approach, client devices can receive anonymous certificates from a device integrity computing system signifying membership in a selected device trustworthiness group, and attestation tokens can be signed anonymously with the anonymous certificates using a group signature scheme. Client devices can include throttlers imposing limits on the quantity of attestation tokens created by the client device.
(FR) L'invention concerne des procédés, des systèmes et des supports informatiques fournissant des jetons d'attestation qui protègent l'intégrité des communications transmises par des dispositifs clients, tout en évitant l'utilisation d'identifiants de dispositif stables qui pourraient être utilisés pour suivre des dispositifs clients ou leurs utilisateurs. Dans une approche, les dispositifs clients peuvent recevoir des certificats anonymes en provenance d'un système informatique d'intégrité de dispositif signifiant l'appartenance à un groupe de confiance de dispositif sélectionné, et des jetons d'attestation peuvent être signés de manière anonyme avec les certificats anonymes à l'aide d'un programme de signature de groupe. Les dispositifs clients peuvent comprendre des dispositifs d'étranglement imposant des limites sur la quantité de jetons d'attestation créés par le dispositif client.
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