Brian C. Barnes

System and method providing region-granular, hardware-controlled memory encryption

Memory management system and method providing linear address based memory access security

Method and apparatus for restricted execution of security sensitive instructions

Method and apparatus for multi-table accessing of input/output devices using target security

Method and apparatus for linear address based page level security scheme to determine current security context

Method and apparatus for securing portions of memory

Method and apparatus for improved security in a data processor

Input/output permission bitmaps for compartmentalized security

Secure execution mode exceptions

System and method for handling device accesses to a memory providing increased memory access security

System and method for controlling device-to-device accesses within a computer system

Software modem with hidden authentication commands

Method and apparatus for preventing radio communication system access by an unauthorized modem

Software modem with privileged mode driver authentication

Software modem for communicating data using encrypted data and unencrypted control codes

Software modem with privileged mode decryption of control codes

Software modem for communicating data using separate channels for data and control codes

Software modem with privileged mode oversight of control parameters

Method and apparatus for protecting page translations

Memory management system and method providing increased memory access security

Computer system with privileged-mode modem driver