Wireless terminal and interface access authentication method of wireless terminal in Uboot mode
A technology of interface access and wireless terminal, which is applied in the direction of wireless communication, public key of secure communication, encryption device with shift register/memory, etc. It can solve the problems of security risks in wireless terminal interface access and prevent malicious access , increase the effectiveness of security measures
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Embodiment 1
[0034] The serial port of the wireless terminal is an important means of software debugging and fault diagnosis in the product development stage. For the attacker, the serial port is also of high value. It can be used to understand the operating mechanism of the device, obtain sensitive data and reverse firmware. Only some items of the wireless terminal have the equipment serial port function turned off, but most items need to retain the equipment serial port debugging function for after-sales fault diagnosis, so security measures are required to prevent illegal users from accessing the equipment serial port. In order to protect the interface access of the wireless terminal in Uboot mode, in Uboot mode, it is not allowed to input any commands except the authentication request by default, and the interface console of the wireless device is not opened even after the kernel of the wireless terminal is started. For example, to open the serial port command input function of the wire...
Embodiment 2
[0048] Please refer to figure 2 , is a schematic structural diagram of a wireless terminal according to Embodiment 2 of the present invention. The wireless terminal 100 includes an interface opening module 110 , a storage module 120 and an authentication module 130 . The interface opening module 110 is used for opening the access authority of the serial port interface of the wireless terminal. The storage module 120 is used for storing a key verification information and a key query information preset by the wireless terminal 100, and the key query information and the key verification information are obtained according to the same plaintext key. The authentication module 130 is used to respond to the authentication request for interface access, obtain the authentication request key information carried by the authentication request, and verify the authentication request key information according to the key verification information, and when the verification is successful, obtai...
Embodiment 3
[0051] Please refer to image 3 , is a schematic flowchart of an access authentication method for a wireless terminal serial port interface according to Embodiment 3 of the present invention. The method is used to obtain the access authority of the wireless terminal serial port interface. After starting up, the command input function of the serial port module 200 is closed in uboot mode. If you want to open the access authority of the serial port interface of uboot, you need to enter the authentication request information when the wireless terminal starts up and enters the countdown stage of uboot start mode. authentication request, the access authentication method includes:
[0052] Step S101, the serial port module 200 receives the authentication request carrying the authentication request information from the serial port of the wireless terminal;
[0053] Step S102, the serial port module 200 obtains the authentication request information from the authentication request, a...
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