Industrial Internet Application Development

TEE

The TEE is an insulated and secure area of the main processor, providing security functionality for application integrity and confidentiality. The TEE differentiates between security functionality and operational functionality. How does it work?—It mainly consists of three parts:

• Trusted OS
• Internal micro-kernel
• APIs

It is used for security checks which is parallel to standard OS. Common security functions include isolated execution of security operations, the integrity of code loaded and data stored, and the confidentiality of data stored in the TEE. It protects data both at rest and in use within the TEE. It also provides higher performance and access to a large amount of memory:

• Isolated execution
• Secure storage
• Device identification ...