公开(公告)号：US20220116206A1

公开(公告)日：2022-04-14

申请号：US17558627

申请日：2021-12-22

Applicant: Intel Corporation

Inventor： David KEHLET ,  Shuanghong SUN ,  Saikumar JAYARAMAN ,  Fariaz KARIM

IPC: H04L9/08 ,  H04L9/32 ,  G06F7/58

Abstract: A first semiconductor device includes a processor configured to generate a random number at initial test of a second semiconductor device after fabrication of the second semiconductor device in a supply chain related to the second semiconductor device, and send the generated random number to the second semiconductor device. The processor is further configured to receive a first signature that is signed over the sent random number by the second semiconductor device using a first private key that is stored in the second semiconductor device, among a first private and public key pair, and test the received first signature, using a first public key that is stored in the first semiconductor device, among the first private and public key pair, to determine whether the second semiconductor device is authenticated.