The ARM TrustZone extensions provide hardware support for two separate address spaces, such that code executing in the non-secure world cannot gain access to any address space marked as secure. A new monitor mode supports transition between the two worlds. The technology provides a secure environment for system features such as key management and/or authentication mechanisms enabled by an open OS. The protection provided by the technology is necessary for consumer privacy and extending a range of services, such as mobile banking and multimedia entertainment, to widespread consumer adoption and use.
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