Patent · US Active

Attestation of trusted execution environments

US12323538B2 · kind B2 · utility

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16Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Alexander Maximov · Lund, SE
Bernard Smeets · Dalby, SE
Lina Pålsson · Genarp, SE

Key dates

Filing date	Apr 1, 2019
Grant date	Jun 3, 2025
Priority date	—
Expiry date	May 9, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/127
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

There is provided mechanisms for attesting a first TEE residing on a first node. A method is performed by a second TEE also residing on the first node. The method comprises obtaining a request from the first TEE to be attested. The method comprises, in response thereto, obtaining a shared key from a third TEE residing on a second node. The method comprises performing local attestation of the first TEE, whereby the first TEE is provided with the shared key from the second TEE.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.