security - How is an ARM TrustZone secure OS secure
TrustZone | TrustZone for Cortex-A – Arm Developer TrustZone is built on Secure and Non-secure worlds that are hardware separated. The partitioning of the two worlds is achieved by hardware logic present in the AMBA bus fabric, peripherals and processors. In order to implement a Secure state in the SoC, trusted software (Trusted OS) needs to be developed to make use of the protected assets. TrustZone | TrustZone for Cortex-M – Arm Developer The Armv8-M architecture extends TrustZone technology to Cortex-M based systems, enabling robust levels of protection at all cost points. TrustZone reduces the potential for attack by isolating the critical security firmware and private information, such as secure boot, firmware update, and keys, from the rest of the application.
The Armv8-M architecture extends TrustZone technology to Cortex-M based systems, enabling robust levels of protection at all cost points. TrustZone reduces the potential for attack by isolating the critical security firmware and private information, such as secure boot, firmware update, and keys, from the rest of the application.
TRUSTZONE
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TrustZone trusted kernel fully utilizes the security features of ARM TrustZone hardware architecture to provid full-system protection for the application and system. Take the mobile secure payment as an example, the existing numerous mobile phone malware in operating system such as Android, IOS makes our phone not secure at all.