Patent ID: 11909882
Assignee: DELL PRODUCTS L.P.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A method performed by a remote system to verify an identity of an information handling system (IHS), the method comprising:
receiving a verification request to verify the identity of the IHS, along with a unique system identifier specified for the IHS;
using the unique system identifier to retrieve an Endorsement Key (EK) certificate and a public signing key associated with the unique system identifier from an entitlement database stored within another remote system; and
communicating with the IHS over a network to cryptographically verify the identity of the IHS, wherein said communicating comprises:
generating a nonce;
encrypting the nonce with a public EK obtained from the EK certificate; and
transmitting the encrypted nonce to the IHS;

wherein said communicating further comprises:
receiving a signed message containing the nonce and the unique system identifier, wherein the signed message is generated by a trusted platform module (TPM) of the IHS using a private signing key stored within the TPM,
using the public signing key retrieved from the entitlement database to verify the nonce and the unique system identifier contained within the signed message, and
transmitting a verification response to the IHS.