公开(公告)号：US20230113906A1

公开(公告)日：2023-04-13

申请号：US17756877

申请日：2020-11-12

Applicant: Arm Limited

Inventor： Hector MONTANER MAS ,  Andreas Lars SANDBERG ,  Roberto AVANZI

IPC: G06F12/14 ,  G06F12/0866

Abstract: An apparatus including memory access circuitry for controlling access to data stored in the non-trusted memory, and memory security circuitry to verify integrity of data stored in the non-trusted memory. The memory security circuitry has authentication code generation circuitry for generating authentication codes to be associated with the data stored in the non-trusted memory, for use when verifying the integrity of the data. The apparatus also has a trusted storage, and the authentication code generation circuitry is arranged to generate different authentication codes, dependent on whether the authentication code is to be stored in the non-trusted memory or the trusted storage.