Patent Number: 8,578,116

Title: System and method for memory data protection with secure pad memory

Abstract: A system and a method for protecting the security of data stored externally to a data processing engine of a data processor using at least one secure pad memory that is mapped to internal memory of the data processing engine and to the external memory. The memory data protection system and method performs an arithmetic operation, such as a bitwise exclusive OR ("XOR") operation, on data being read from the data processing engine or written to the external memory using data stored in secure pads of the secure pad memory, which data may be random numbers generated by a random number generator.

Inventors: Chen; Xuemin (San Diego, CA), Rodgers; Stephane W. (San Diego, CA)

Assignee: Broadcom Corporation

International Classification: G06F 12/00 (20060101)

Expiration Date: 1/05/12017