TECHNIQUES FOR PREVENTING PHYSICAL ATTACKS ON CONTENTS OF MEMORY

摘要

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.

主权项

1. A method for protecting sensitive data, the method comprising:
presenting, by a pseudo-internal memory module of a system on a chip, an address space as internal memory of the system on a chip, wherein 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 system on a chip; 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 system on a chip.