Chip operating system update method, device and system

Abstract

The invention relates to the technical field of data security, in particular to a chip operating system update method, a device and a system. The method is applied to a first electronic device, the first electronic device comprises a chip operating system module and an interface module, the interface module is used for controlling the reset restart state switching of the chip operating system module, and the first electronic device is in a data connection with a second electronic device. The method includes that the interface module receives an update command sent by the second electronic device, the chip operating system module is controlled to be switched from a first state to a second state according to the update command, when the second state of the chip operating system module shows that the update is completed, the chip operating system module is controlled to be switched from a second state to a third state by the interface module, so that the chip operating system module is subjected to reset restart, and when the reset restart of the chip operating system module is completed, the chip operating system module is controlled to be switched from a third state to a first state by the interface module.

Description

technical field [0001] The invention relates to the technical field of data security, in particular to a method, device and system for upgrading an operating system in a chip. Background technique [0002] COS (Chip Operating System, on-chip operating system) is an embedded operating system with the COS chip as the core, which is used in the field of data security. The main function of the COS system is to control the information exchange between the smart card and the outside world, and to respond and process external commands. The COS system usually exists in smart cards, such as IC cards, SD cards (Secure Digital Memory Cards, secure smart cards), UKEY, etc., and is generally connected to the host through the peripheral interface of the smart card to communicate with the host. For example, the interior of UKEY includes a COS system. UKEY is connected to the host computer through the USB interface, and the COS system inside the UKEY communicates with the host computer thr...

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found at least the following problems in the prior art: In the method provided by the prior art, the user needs to manually pull out the electronic device with the COS system to disconnect the electronic device from the peripheral host Connect the device, and then re-insert the card to re-establish the connection between the COS system and the peripheral host device and re-power on, requiring the user to perform cumbersome operations

[0005] On the other hand, when the COS system is disconnected and re-established, the upper-layer application program on the peripheral host device connected to the COS system needs to constantly switch states, and its operation interface also needs to switch frequently according to the state changes of the COS system. The operation is cumbersome; when the upper layer application is processing the state change of the underlying COS system, it is prone to crash if it is not handled properly

The method provided by the prior art has the defects of cumbersome operation and prone to failure

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