公开(公告)号：US20200092113A1

公开(公告)日：2020-03-19

申请号：US16533516

申请日：2019-08-06

Applicant: SYNAPTICS INCORPORATED

Inventor： Guy Hutchison ,  Zubin Shah ,  Kamal Dalmia

IPC: H04L9/32 ,  H04L9/08 ,  H04L29/06

Abstract: A method and system for securing in-vehicle ethernet links are disclosed. According to one embodiment, a method comprises receiving from an authenticator, via an insecure channel, a public key of the authenticator, a random number, and a challenge. A private key of the peer that was supplied to the peer is accessed from local storage at the peer. A state machine computes a session key for the peer, based on the random number, the public key of the authenticator, and the private key of the peer. The state machine computes a peer response to the challenge using the session key for the peer and a symmetric cipher function.

公开(公告)号：US11184177B2

公开(公告)日：2021-11-23

申请号：US16533516

申请日：2019-08-06

Applicant: SYNAPTICS INCORPORATED

Inventor： Guy Hutchison ,  Zubin Shah ,  Kamal Dalmia

IPC: H04L9/32 ,  H04L9/08 ,  H04L29/06

Abstract: A method and system for securing in-vehicle ethernet links are disclosed. According to one embodiment, a method comprises receiving from an authenticator, via an insecure channel, a public key of the authenticator, a random number, and a challenge. A private key of the peer that was supplied to the peer is accessed from local storage at the peer. A state machine computes a session key for the peer, based on the random number, the public key of the authenticator, and the private key of the peer. The state machine computes a peer response to the challenge using the session key for the peer and a symmetric cipher function.