Verfahren und Anordnungen zur Verteilung Gemeinsam Genutzter Geheimnisse

Details

Veröffentlichungs-Nr.

EP4757236

Anmeldetag

3. Dezember 2024

Veröffentlichung

10. Juni 2026

Rechtsraum

EP

IPC

H04L9/08

Abstract

For distributing a shared secret (302) among clients, in response to a first request (101, 202, 402) from a first client, a first ephemeral key (309) and one or more further ephemeral keys (310, 311) are generated (305). The shared secret (302) is digitally encapsulated (103) in a first version (313) and one or more further versions (314, 315). Each version (313, 314, 315) is the shared secret (302) encapsulated with the respective ephemeral key (309) and subject to decapsulation with a respective private key, a paired public key of which is known to belong to the respective client. The first (313) and one or more further versions (314, 315) are stored in association with a common identifier (304). When a second request (106, 407, 503, 702) comes from a client identifiable as a holder of one of the private keys and refers to said common identifier (304), that version (313, 314, 315) is transmitted that is subject to decapsulation with the private key of the identified client.

Anmelder

Firma

Gurulogic Microsystems Oy

Land

🇫🇮 Finnland

Fachgebiete