SECURITY RAM BLOCK WITH MULTIPLE PARTITIONS

摘要

Circuits, methods, and apparatus for storing application data, keys, authorization codes, or other information in a volatile memory on an FPGA. A field programmable gate array (FPGA) can include multiple memory blocks and partition those blocks among multiple independent reconfigurable regions. Access to the memory blocks can then be restricted so that only authorized regions have access to particular memory partitions. In addition, each partition can store multiple message authentication codes (MACs) for further controlling access to data in each partition.

主权项

1. An apparatus for storing data, the apparatus comprising:
programmable circuitry including first and second independently reconfigurable regions; a memory block configured to store data; and a configuration controller configured to:
partition the memory block to allocate a first memory partition to the first independently reconfigurable region and a second memory partition to the second independently reconfigurable region;receive requests from the first and second independently reconfigurable regions to access the memory block; andcontrol access to the memory block to prevent the first independently reconfigurable region from accessing the second memory partition and to prevent the second independently reconfigurable region from accessing the first memory partition.