Abstract: A secured payment method, secured payment device and computer-readable storage medium, relating to the technical field of Internet. The method comprises: detecting whether a mobile terminal is connected to a first secured payment module, wherein the first secured payment module shares a payment hardware interface with the mobile terminal; activating the payment hardware interface, if the detection result shows that the mobile terminal is connected to the first secured payment module; detecting whether the payment hardware interface is controlled by the first secured payment module or by the mobile terminal; providing a payment warning, if the detection result shows that the payment hardware interface is controlled by the mobile terminal. Thus, the manufacturing costs of the devices can be reduced, potential safety risk in some transaction can also be avoided, and a secured payment is guaranteed.

Abstract: A secured payment method, secured payment device and computer-readable storage medium, relating to the technical field of Internet. The method includes: detecting whether a mobile terminal is connected; if the detection result shows that a mobile terminal is connected, activating a payment hardware interface shared with the mobile terminal; detecting whether the payment hardware interface is controlled by the secured payment device or by the mobile terminal during a payment process; if the detection result shows that the payment hardware interface is controlled by the mobile terminal, providing a payment warning. Thereby, the manufacturing cost of the devices can be reduced, also, potential safety risk in some transaction can be avoided, and a secured payment is guaranteed.

Abstract: A method for secure payment, including: detecting whether a connected mobile terminal exists; acquiring, when the connected mobile terminal exists, a first user transaction information, and encrypting the first user transaction information to generate a corresponding first encrypted transaction information; sending the first encrypted transaction information to a transaction verification server based on a first hardware interface of the mobile terminal, and receiving a transaction verification result from the transaction verification server; and determining, according to the transaction verification result, whether a payment operation is to be performed.

Abstract: The present application provides methods for downloading a key, a client, a password device, and a terminal device, in which, the client sends a request for downloading an initial key to a backend server, and receives a server identity certificate delivered by the backend server and forwards the server identity certificate to the password device. The client acquires a device identity ciphertext returned by the password device and sends the device identity ciphertext to the backend server. The client acquires a server identity ciphertext and an initial key ciphertext generated by the backend server, and sends the server identity ciphertext to the password device. After the password device successfully verifies an identity of the backend server, the client sends the initial key ciphertext to the password device.

Abstract: A method for updating firmware is provided. The method includes: obtaining an AP firmware update file and a SP firmware update file set by the AP, the AP firmware update file and the SP firmware update file set are obtained by parsing a same system firmware update file that has been released, and the SP firmware update file set supports multiple different models of the SP; updating, by the AP, a system firmware of the AP according to the AP firmware update file, and sending a target firmware update file parsed from the SP firmware update file set to the SP; the target firmware update file supports the models of the SP; updating, by the SP, a system firmware of the SP according to the target firmware update file. According to the present application, a unified management of firmware versions is facilitated.

Abstract: A tamper-proof structure and an electronic device are provided in the present application. The tamper-proof structure includes a first-order circuit board, at least one tamper-proof component, at least one safety signal wire and a security chip. The safety signal wire is wrapped around an outer layer of the first-order circuit board or penetrates through a through hole and is wrapped around an inner layer of the first-order circuit board to form a tamper-proof area as required. The safety signal wire is connected to a tamper-proof switch and the security chip correspondingly, and a level of the safety signal wire is changed when the tamper-proof switch or the safety signal wire is damaged, and the security chip is triggered to erase sensitive information accordingly. By punching on the first-order circuit board, an objective of tamper-proof and an objective of reduction of design cost and simplification of security solution are achieved simultaneously.

Abstract: A key reuse circuit is provided, a key component is used to generate a DC voltage and a startup-trigger-signal according to a user input, the switch circuit generates a key trigger signal according to the DC voltage, the control circuit reverses a level of an enable-regulation-signal when a time duration of the key trigger signal is longer than or equal to a preset time duration, or determines a key value of the key component when the time duration of the key trigger signal is shorter than the preset time duration, the power on/off regulation circuit generates a voltage-conversion-enable-signal according to the startup-trigger-signal and an enable-regulation-signal having a first level, the buck circuit generates a first voltage according to the power voltage and the voltage-conversion-enable-signal and stops generating the first voltage when the voltage-conversion-enable-signal is terminated, so that reuse of a general key in the key matrix is realized.

Abstract: A key reuse circuit is provided, a key component is used to generate a DC voltage and a startup-trigger-signal according to a user input, the switch circuit generates a key trigger signal according to the DC voltage, the control circuit reverses a level of an enable-regulation-signal when a time duration of the key trigger signal is longer than or equal to a preset time duration, or determines a key value of the key component when the time duration of the key trigger signal is shorter than the preset time duration, the power on/off regulation circuit generates a voltage-conversion-enable-signal according to the startup-trigger-signal and an enable-regulation-signal having a first level, the buck circuit generates a first voltage according to the power voltage and the voltage-conversion-enable-signal and stops generating the first voltage when the voltage-conversion-enable-signal is terminated, so that reuse of a general key in the key matrix is realized.

Abstract: A method and an apparatus for improving a reading and writing speed of a contactless card, a terminal device, and a computer-readable storage medium. The method includes: running a driver of a POS terminal; obtaining a communication signal between the driver and an interface chip, in which data to be read and written of the contactless card are obtained by the interface chip according to the communication signal, and wherein data interaction are performed between a card reader on which the interface chip located and the contactless card; obtaining a timing waveform diagram of the driver according to the communication signal; obtaining a running time of the driver according to the timing waveform diagram; modifying the driver to shorten the running time of the driver according to the running time and a preset driver modification rule.

Abstract: An application security authentication method, including: step 202, acquiring an application file to be downloaded and extracting signature information from the application file; step 204, acquiring public key information contained in a multilevel key hierarchy, and acquiring public key information of the currently highest priority according to a priority order of the public key information; step 206, authenticating the signature information with the acquired public key information of the currently highest priority; and step 208, allowing the application file to be downloaded if an authentication of the signature information is passed.

Abstract: A method for remotely acquiring secret key, comprising steps of detecting an injection key acquisition instruction; generating a temporary key pair when the injection key acquisition instruction is detected; acquiring a locally stored private key in a random key pair, and using a private key in the random key pair to perform signature on a public key in the temporary key pair to generate a temporary key signature; acquiring a first identity authentication certificate; sending the temporary key signature and the first identity authentication certificate to a remote injection server; receiving an injection key ciphertext signature and a second identity authentication certificate which is returned by the remote injection server according to the temporary key signature and the first identity authentication certificate; and acquiring and storing an injection key according to the injection key ciphertext signature and the second identity authentication certificate.