Credible Key and safe operation method thereof

The invention provides a credible key and a safe operation method thereof. The credible Key comprises a communication agent module, a safe storage module, a credible computation module and a credible interaction module, wherein the communication agent module is used for establishing a safe channel between the credible Key and a credible operating system of terminal equipment; the safe storage module is used for providing a safe storage API (Application Program Interface) for developing a credible application, and providing a safe storage function for the credible Key; the credible computation module is used for providing a credible computation API for the credible application, and providing a credible computation function for the terminal equipment; the credible interaction module is used for transmitting an interaction command to the credible operating system of the terminal equipment through the communication agent module on the basis of user operation. The credible KEY can be used together with a credible running environment on the terminal equipment, thereby realizing credible services such as remote payment, online transfer, safe storage and credible computation.