USB (universal serial bus) switching device with download verification function and download verification method
A technology for verifying functions and switching devices, applied in computer security devices, digital data authentication, instruments, etc., can solve problems such as the occurrence of reinstallation system events, lack of security verification measures, etc., and achieve the effect of saving manufacturing costs
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Embodiment 1
[0025] figure 1 It is a structural block diagram of a universal serial bus USB adapter device with a download verification function provided by Embodiment 1 of the present invention. like figure 1 As shown, the device includes a controller 110 arranged in the smart device 100, a USB interface 120 and a download verification data module 130; the download verification data module 130 includes a head 131 that matches the USB interface 120 and is used to connect with an external device. Tail 132; the head 131 includes a USB interface plug 1311 and a verification chip (Download Key IC) 1312 connected to the USB interface plug 1311 and storing verification information. Wherein, the controller 110 is used to read the verification information in the verification chip 1312 through the USB interface 120 when the USB interface plug 1311 in the download verification data module 130 is connected to the USB interface 120, verify the verification information, and pass the verification resul...
Embodiment 2
[0037] figure 2 A structural block diagram of a universal serial bus USB adapter device with a download verification function provided by Embodiment 1 of the present invention. This embodiment is optimized on the basis of the above embodiments. In this embodiment, the download verification data module The USB interface plug in the head is connected to the tail through the USB sub-interface; the smart device performs data transmission based on the USB communication protocol with the external device through the USB sub-interface.
[0038] Correspondingly, such as figure 2 As shown, the device includes a controller 210, a USB interface 220, and a download verification data module 230 arranged in the smart device 200; the download verification data module 230 includes a head 231 that matches the USB interface 220 and is used to connect with an external device. Tail 232; said head 231 includes a USB interface plug 2311 and a verification chip (Download Key IC) 2312 connected wit...
Embodiment 3
[0043] image 3 It is a schematic flow chart of a download verification method provided by Embodiment 3 of the present invention. The method is based on the controller in the Universal Serial Bus USB adapter device with download verification function provided by the embodiment of the present invention.
[0044] Correspondingly, the method of this embodiment includes the following steps:
[0045] Step 301, when it is detected that the USB interface plug is connected to the USB interface, read the verification information in the verification chip through the USB interface.
[0046] Step 302: Verify the verification information, and determine whether to allow the download mode to be enabled based on the verification result.
[0047] Further, the USB interface is compatible with the I2C communication protocol and the USB communication protocol; reading the verification information in the verification chip through the USB interface includes: reading the verification information in...
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