Sicherer Schlüsselaustausch mit Schlüsselassoziierten Attributen

Details

Veröffentlichungs-Nr.

EP4738761

Anmeldetag

27. Juli 2021

Veröffentlichung

6. Mai 2026

Rechtsraum

EP

IPC

H04L9/08, G09C1/00H04L9/08

Abstract

A method for secure key exchange. The method comprises receiving a request to certify a key from a communication partner at an interface between an access and tamper resistant circuit block and exposed circuitry. Within the access and tamper resistant circuit block, a first random private key is generated. A corresponding public key of the first random private key is derived, and a cryptographic digest of the public key and attributes associated with the first random private key is generated. The generated cryptographic digest is signed using a second random private key that has been designated for signing by one or more associated attributes. The public key and the signature are then sent to the communication partner via the interface.

Anmelder

Firma

Microsoft Technology Licensing, LLC

Land

🇺🇸 USA