IMPLEMENTING ENHANCED SECURITY WITH STORING DATA IN DRAMs

摘要

A method, system and memory controller for implementing enhanced security in a memory subsystem including DRAM in a computer system. A memory includes a register to hold scrambling information transmitted from a memory controller; and scrambling circuitry on the memory to scramble at least one of bank select bits and data bits responsive to the scrambling information in the register.

主权项

1. A method for implementing enhanced security in a memory subsystem including Dynamic Random Access Memory (DRAM) in a computer system comprising:
identifying an Error Checking Code (ECC) strength for data by decreasing ECC strength in proportion to an importance value for data; providing a register to hold scrambling information with a memory; receiving scrambling information transmitted from a memory controller; and providing scrambling circuitry on the memory subsystem to scramble at least one of bank select bits and data bits responsive to the scrambling information in the register.