Processing

Please wait...

PATENTSCOPE will be unavailable a few hours for maintenance reason on Saturday 31.10.2020 at 7:00 AM CET
Settings

Settings

Goto Application

1. WO2020144022 - PROBABILISTIC SHARED SECRET VALIDATION

Publication Number WO/2020/144022
Publication Date 16.07.2020
International Application No. PCT/EP2019/085914
International Filing Date 18.12.2019
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
CPC
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 9/3239
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
3239involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD
Applicants
  • BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY [GB]/[GB]
Inventors
  • ROSCOE, Jonathan
Agents
  • BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY, INTELLECTUAL PROPERTY DEPARTMENT
Priority Data
19150866.209.01.2019EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROBABILISTIC SHARED SECRET VALIDATION
(FR) VALIDATION DE SECRET PARTAGÉ PROBABILISTE
Abstract
(EN)
A computer implemented method of shared secret validation for a transaction to transfer an association of a digital asset represented in a distributed transactional database from an incumbent entity to a requesting entity, the asset having associated a probabilistic data structure encoding at least one digital hash of each of a plurality of secrets including the shared secret, and the transaction including a hash of the shared secret, the method comprising: validating the transaction by comparing the hash of the shared secret in the transaction with the probabilistic data structure; and responsive to the validation, committing the transaction in the database to effect the transfer of association of the digital asset to the requesting entity.
(FR)
La présente invention concerne un procédé, mis en œuvre par ordinateur, de validation d’un secret partagé pour une transaction pour transférer une association d’un bien numérique, représenté dans une base de données transactionnelle distribuée, d’une entité en exercice à une entité demandeuse, le bien étant associé à une structure de données probabiliste codant au moins un hachage numérique de chaque secret d’une pluralité de secrets incluant le secret partagé, et la transaction incluant un hachage du secret partagé. Le procédé comprend : la validation de la transaction par comparaison du hachage du secret partagé dans la transaction à la structure de données probabiliste ; et en réponse à la validation, l’installation de la transaction dans la base de données pour effectuer le transfert d’association du bien numérique à l’entité demandeuse.
Latest bibliographic data on file with the International Bureau