公开(公告)号：US20160299854A1

公开(公告)日：2016-10-13

申请号：US15043294

申请日：2016-02-12

Applicant: QUALCOMM Incorporated

Inventor： Vinoth Kumar DEIVASIGAMANI ,  Laurence Geoffrey LUNDBLADE ,  Satish ANAND ,  Billy B. BRUMLEY

IPC: G06F12/14 ,  G06F21/64 ,  G06F21/78

CPC classification number: G06F12/1408 ,  G06F21/6245 ,  G06F21/79 ,  G06F2212/402

Abstract: Techniques for providing countermeasures against physical attacks on the contents of off-chip memory are provided in which a pseudo-internal memory resistant to physical attack is used. The pseudo-internal memory is mapped to an address space such that the pseudo-internal memory appears to be on-chip memory to a processor or a system on a chip (SoC). A method for protecting sensitive data according to these techniques includes presenting, by a pseudo-internal memory module of a SoC, an address space as internal memory of the SoC, where the address space comprises memory located off-chip from the system on a chip, receiving a data write request at the pseudo-internal memory module from a component of the SoC, encrypting data associated with the data write request using the pseudo-internal memory module to generate encrypted data, and writing the encrypted data to the memory located off-chip from the SoC.

Abstract translation: 提供了针对物理攻击对芯片内存内容提供对策的技术，其中使用了抵抗物理攻击的伪内部存储器。 伪内部存储器被映射到地址空间，使得伪内部存储器看起来是片上存储器到处理器或芯片上的系统（SoC）。 根据这些技术的用于保护敏感数据的方法包括：通过SoC的伪内部存储器模块来呈现作为SoC的内部存储器的地址空间，其中地址空间包括位于芯片上的系统外部的存储器 从所述SoC的组件在所述伪内部存储器模块处接收数据写入请求，使用所述伪内部存储器模块对与所述数据写入请求相关联的数据进行加密，以生成加密数据，以及将所述加密数据写入所述存储器 芯片来自SoC。