TrustZone Added to ARM Processor Architecture

British chipmaker ARM announced its new TrustZone technology, which the company will add to its ARM processor architecture to provide a secure foundation for OSs and applications such as Palm OS, Symbian OS, Linux, Windows CE, and Java. ARM core processors are used in a wide variety of product, including PDAs, cell phones, LAN equipment, set-top boxes, electronic payment systems, and more. TrustZone will become available in its CPU cores sometime in 2004.

A spokesperson for ARM said, "TrustZone technology is implemented within the microprocessor core itself, enabling the protection of on- and off-chip memory. Since the security elements of the system are designed into the core hardware, security issues surrounding proprietary, non-portable solutions outside the core are removed ... TrustZone technology tags and partitions secure code and data within the system and maintains a clear, hardware separation between secure and non-secure information. This separation enables secure code and data to run alongside an OS securely and efficiently, without being compromised or accessible to attack."

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