公开(公告)号：US20180060589A1

公开(公告)日：2018-03-01

申请号：US15646299

申请日：2017-07-11

Applicant: NXP B.V.

Inventor： Piotr POLAK ,  Vibhu SHARMA

IPC: G06F21/57 ,  H04L9/32

CPC classification number: G06F21/572 ,  G06F8/65 ,  G06F9/445 ,  G06F21/57 ,  G06F21/575 ,  H04L9/32 ,  H04L9/3242 ,  H04L9/3247 ,  H04L9/3263 ,  H04L63/123 ,  H04W12/0023

Abstract: An apparatus comprising: a firmware authentication element configured to, based on received firmware and predetermined cryptographic authentication information, provide for cryptographic based authentication of the received firmware to control execution of the received firmware by any one of a plurality of processors.

公开(公告)号：US20180034794A1

公开(公告)日：2018-02-01

申请号：US15476122

申请日：2017-03-31

Applicant: NXP B.V.

Inventor： Sujan PANDEY ,  Piotr POLAK

IPC: H04L29/06 ,  H04L9/32

CPC classification number: H04L63/061 ,  H04L9/0872 ,  H04L9/0891 ,  H04L9/12 ,  H04L9/3297 ,  H04L63/123

Abstract: A method and apparatus for updating an encryption key for performing encrypted communication over a communications network. The method comprises, within a timestamp distribution node, transmitting a message to at least one timestamp reception node of the communications network containing a timestamp value. The method further comprises, within the at least one timestamp reception node, receiving the message from the timestamp distribution node and extracting the timestamp value. Wherein, within each of the timestamp distribution node and the at least one timestamp reception node, the method comprises generating at least one updated encryption key for performing encrypted communication based at least partly on the extracted timestamp value.