Certicom Corporation

Blackberry Corporation

2236008 Ontario Limited

James Robert Alfred

Ming Chee Tsang

Matthew John Campagna

Robert John Lambert

Scott Lee Linke

Sergei Sidorov

Neil Patrick Adams

Michael Peter Montemurro

Stephen John Barrett

Robert Joseph Lombardi

Adam Richard Schieman

Matthew J Campagna

A computer-implemented method comprises sending, to a first device, a request for a signed certificate, the request for the signed certificate comprising a signed hash of data associated with a user, a corresponding public key of the user, and the data associated with the user; sending, to a second device different from the first device, a request for the signed certificate, the request comprising information to retrieve the signed certificate; and obtaining, from the second device, a signed certificate, the signed certificate comprising the public key of the user, the hash of the data associated with the user, and information indicating a health status of the user, the data associated with the user being absent from the signed certificate.

System and method for obtaining a signed certificate

A system and method for securing communication across an in-vehicle bus, includes establishing a connection between a gateway in a vehicle and the in-vehicle bus; generating a session key at the gateway within the vehicle; transmitting a public key certificate and ephemeral key to the gateway and an electronic control unit of the vehicle; generating a shared secret at the gateway and the electronic control unit, respectively; encrypting the session key with the shared secret at the gateway; receiving the encrypted session key through the in-vehicle bus at the electronic control unit; and decrypting the encrypted session key based on the shared secret generated at the electronic control unit.

In-vehicle networking

A method and apparatus are disclosed for using a single credential request (e.g., registered public key or ECQV certificate) to obtain a plurality of credentials in a secure digital communication system having a plurality of trusted certificate authority CA entities and one or more subscriber entities A. In this way, entity A can be provisioned onto multiple PKI networks by leveraging a single registered public key or implicit certificate as a credential request to one or more CA entities to obtain additional credentials, where each additional credential can be used to derive additional public key-private key pairs for the entity A.

Using a single certificate request to generate credentials with multiple ECQV certificates

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Oakville, Canada

James Robert Alfred