公开(公告)号：US20230300175A1

公开(公告)日：2023-09-21

申请号：US18042272

申请日：2021-08-06

Applicant: ARM LIMITED

Inventor： Gustavo Federico PETRI ,  Anthony Charles Joseph FOX ,  Basma EL GAABOURI

IPC: H04L9/40

CPC classification number: H04L63/205

Abstract: There is provided a network node coordinator system. Communication circuitry communicates, via a network, with one or more network nodes. Receive circuitry receives a global policy that describes a security policy to be applied across the network. Policy processing circuitry specialises the global policy and produces, for each of the one or more network nodes, an associated local policy specific to that network node. Transmit circuitry transmits, to each of the one or more network nodes, the associated local policy specific to that network node.

公开(公告)号：US20220164458A1

公开(公告)日：2022-05-26

申请号：US17104718

申请日：2020-11-25

Applicant: Arm Limited

Inventor： Gustavo Federico PETRI ,  Guilhem Floréal BRYANT ,  Dominic Phillip MULLIGAN ,  Anthony Charles Joseph FOX

IPC: G06F21/60 ,  H04L9/08 ,  H04L9/32 ,  G06F21/64

Abstract: A data processing system is provided, which comprises receiving circuitry for receiving, from a requester, a request to use decrypted data obtained by decrypting encrypted data. Trusted execution circuitry provides a trusted execution environment. The trusted execution circuitry is configured to: securely store a policy, acquire a key within the trusted execution environment, where the key is associated with the decrypted or encrypted data, and respond to the request based on the policy and one or more characteristics of the requester.