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1. WO2019215497 - SECURE METHOD FOR THE DELAYED SHARING OF DATA BETWEEN A SENDER USER AND A PLURALITY OF RECIPIENT USERS, WITH LOCAL CREATION OF A CONTAINER

Publication Number WO/2019/215497
Publication Date 14.11.2019
International Application No. PCT/IB2019/000348
International Filing Date 07.05.2019
IPC
G06F 21/62 2013.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60Protecting data
62Protecting access to data via a platform, e.g. using keys or access control rules
CPC
G06F 21/6218
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60Protecting data
62Protecting access to data via a platform, e.g. using keys or access control rules
6218to a system of files or objects, e.g. local or distributed file system or database
G06F 2221/2137
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2221Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
21Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
2137Time limited access, e.g. to a computer or data
Applicants
  • LAPSECHAIN SA [CH]/[CH]
Inventors
  • ATTIA, Jonathan
  • LHOMME, Fabrice
  • LOUISET, Raphaël
Priority Data
185395909.05.2018FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) SECURE METHOD FOR THE DELAYED SHARING OF DATA BETWEEN A SENDER USER AND A PLURALITY OF RECIPIENT USERS, WITH LOCAL CREATION OF A CONTAINER
(FR) PROCÉDÉ SÉCURISÉ DE PARTAGE RETARDÉ DE DONNÉES ENTRE UN UTILISATEUR ÉMETTEUR ET PLUSIEURS UTILISATEURS DESTINATAIRES, AVEC CRÉATION LOCALE D'UN CONTENEUR
Abstract
(EN) Disclosed is a method for sharing files (2) between a sender user (A) and a plurality of recipient users (Bk), said method involving three phases: - writing: ◦ at the sender user (A) end, creating a file container (6) assigned to the recipient users (Bk); ◦ during a writing time (T1), giving the sender user (A) writing access to the container (6); - archiving: ◦ transmitting the container (6) to a remote computer system (1); ◦ copying the container for each recipient user (Bk) and encrypting each copy using the recipient's public key (ZB); ◦ during an archiving time (T2), storing each encrypted container (6Bk); - sharing: allowing each recipient user (Bk) to download the encrypted container (6Bk) for decryption thereof using his or her private key (BkZ).
(FR) Procédé de partage de fichiers (2) entre un utilisateur (A) émetteur et plusieurs utilisateurs (Bk) destinataires, qui comprend trois phases : Ecriture : o Créer au niveau de l'utilisateur (A) émetteur un conteneur (6) de fichiers, associé aux utilisateurs (Bk) destinataires; o Pendant un délai (T1) d'écriture, permettre à l'utilisateur (A) émetteur l'accès en écriture au conteneur (6); Archivage : o Transmettre le conteneur (6) à un système (1) informatique distant; o Copier le conteneur pour chaque utilisateur (Bk) destinataire et crypter chaque copie à l'aide de la clé (ZBk) publique du destinataire; o Pendant un délai (T2) d'archivage, stocker chaque conteneur (6Bk) crypté; Partage : permettre à chaque utilisateur (Bk) destinataire de télécharger le conteneur (6Bk) crypté en vue de le décrypter à l'aide de sa clé (BkZ) privée.
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