opteeclient

opteeclient is a software component that facilitates communication between a normal world application and a Trusted Execution Environment (TEE) managed by the Trusted Execution Environment (TEE) Operating System. Specifically, it acts as a client library for interacting with the OP-TEE (Open Portable Trusted Execution Environment).

The primary purpose of opteeclient is to abstract the complexities of communicating with the TEE. This allows developers to write applications that can securely perform sensitive operations within the TEE without needing to directly manage low-level TEE communication protocols. opteeclient typically handles tasks such as loading TEE-based applications (also known as Trusted Applications or TAs), establishing sessions with these TAs, invoking their functions, and managing data transfer between the normal world and the TEE.

By providing a standardized interface, opteeclient enables developers to leverage the security benefits of a TEE for tasks like cryptographic operations, secure storage, and secure key management. This enhances the overall security posture of an application by isolating critical operations from the potentially less secure normal world operating system. The client library ensures that data processed within the TEE remains confidential and protected from unauthorized access.