Feitian Technologies Co., Ltd.

A method for realizing OTG communication without plugging and unplugging includes: when an apk file of an application is generated, the application presets device information of an associated USB device; when the USB device is connected to a terminal device, a system of the terminal device recognizes an application qualified for initiation according to the device information of the connected USB device; a target application is initiated according to the application qualified for initiation and a user selection result; and the target application initiates a processing thread so as to establish OTG data communication with the connected USB device. The present disclosure realizes that after the USB device is plugged, the corresponding target application on the terminal device is initiated, and the terminal device and the USB device can directly perform OTG communication without the need of hardware connection of the USB device with the terminal device again, thereby avoiding the processing of manually selecting the target application, improving the initiation efficiency, and improving the usage feeling of the user. The disclosure also relates to an apparatus, terminal device and medium for realizing OTG communication without plugging and unplugging.

The invention relates to the field of information security, in particular to an automatic screen unlocking method and device, electronic equipment and a readable storage medium. The method comprises the following Step S of sending a broadcast carrying a uuid value, when the terminal equipment determines that the equipment to which the broadcast belongs is connectable equipment according to the signal strength of the broadcast and the uuid value, receiving a Bluetooth connection establishment request sent by the terminal equipment, establishing a Bluetooth connection with the terminal equipment based on the Bluetooth connection establishment request, sending a notification message that the Bluetooth connection is successfully established to the terminal equipment, receiving an authentication login instruction sent by the terminal equipment based on the notification message, acquiring to-be-signed data carried in the authentication login instruction, signing the to-be-signed data according to the stored private key to obtain a signature result, and sending the signature result to the terminal equipment, so that the terminal equipment executes an automatic screen unlocking operation according to the signature result. According to the method and the device, the locked screen can be quickly and automatically unlocked through the automatic unlocking processing based on the Bluetooth connection, so that the method and the device have relatively high safety.

An implementation method for increasing the number of certificates supported by a PIV application, the method comprising: a virtual machine of a key device is powered on; a data endpoint address is set to be an endpoint address of a CCID interface that receives instruction data; according to the instruction data, APDU data used for the authentication of a PIV application is obtained; and the APDU data used for the authentication of the PIV application is sent to a PIV application of the key device; the PIV application calls an API interface to obtain a CCID interface number, obtains a PIV device certificate number according to a general device certificate number in the APDU data used for the authentication of the PIV application and the CCID interface number, obtains a PIV certificate according to the PIV device certificate number, and operates according to the PIV certificate to obtain operation results; and the virtual machine returns the operation results to an upper computer according to the data endpoint address. The method further comprises: when a USB interrupt is triggered, a USB interrupt process is executed. The described method overcomes the limitation of the number of certificates supported by a PIV application while simplifying operations.

The invention provides a working key generation method and device and a computer readable storage medium, and belongs to the technical field of information security. The method comprises the following steps: the terminal receiving an operation instruction sent by an upper computer, obtaining a working key purpose and a working key algorithm according to the operation instruction, setting the working key purpose as a first purpose by the terminal, generating derived data according to the first purpose, a master key identifier, a first numerical value and a master key algorithm, determining the length of a working key according to the working key algorithm, obtaining data in a working key buffer area as a key, generating the working key according with the length of the working key according to the key and the derived data, executing corresponding operation according to the operation instruction and the working key, and returning an operation result to the upper computer. Compared with an encryption scheme in the prior art, the method provided by the invention is safer and wider in application range.

A USB device capable of accurately distinguishing an operating system of a mobile device. The USB device comprises: an initialization setting module ( 301 ), a receiving and determining module ( 302 ), a saving and determining module ( 303 ), a first setting module ( 304 ), an organizing and determining module ( 305 ), a second setting module ( 306 ), a system type determination module ( 307 ), a first organizing module ( 308 ), a second organizing module ( 309 ) and a sending module ( 310 ). The USB device can accurately distinguish whether an operating system of a mobile device is an iOS operating system or a non-iOS operating system. Depending on different operating system types that are distinguished, different configuration descriptors and preset interface descriptors are returned to the mobile device, such that a device type of the USB device itself is reported to the mobile device.

A mnemonic phrase management method. The method comprises: generating a random number having a first preset length and performing calculation on the random number; splicing the random number and data having a second preset length acquired from the random number calculation result to obtain a first spliced value; grouping the first spliced value according to a third preset length; sequentially searching an offset storage area for corresponding indexes according to values of the groups; obtaining mnemonic phrase starting offset addresses and mnemonic phrase lengths according to the indexes; and acquiring corresponding mnemonic phrases from a mnemonic phrase storage area according to the mnemonic phrase starting offset addresses and the mnemonic phrase lengths and sequentially storing the mnemonic phrases into a mnemonic phrase buffer. The present invention relates to the field of information security. Compared with the prior art, the present invention can greatly reduce storage space, solve the problem of space limitation of a security chip, and save more space for applications, is applicable to existing security chips, and meets production requirements of hardware devices.

The present disclosure discloses a method and system for implementing fingerprint sharing. When a device receives a fingerprint verifying instruction, starts to collect fingerprint information and determines whether the collected fingerprint information matches a stored fingerprint template, if yes, the device performs computation on the fingerprint template to obtain a fingerprint identification and returns the fingerprint identification to a terminal, the terminal inquires a database to determine whether user information is stored, if yes, the terminal prompts to replace a fingerprint and sends a fingerprint registering instruction, if no, the terminal prompts to input the fingerprint and sends a fingerprint registering instruction to the device; the device receives the fingerprint registering instruction, starts to collect fingerprint information and stores it, after compeleting collection, performs computation on the fingerprint template generated according to the stored fingerprint information to obtain a fingerprint identification and returns the fingerprint identification to the terminal.

An intelligent key device and a verification method therefor. The verification method comprises: determining the type of an instruction by means of an intelligent key device; determining a key area according to the type of the instruction; acquiring a biometric verification identifier corresponding to the key area; determining, according to the biometric verification identifier, a biometric verification mode corresponding to the key area; and executing a corresponding operation according to the biometric verification mode. According to the present invention, a user can realize multiple verification modes of biometric features according to a key area in the process of performing verification using the intelligent key device, such that different verification requirements of the user for the key used in different application scenarios are met.

The present application presents a method and an apparatus for synchronizing time by parsing satellite navigation data. A service application obtains current time of a system and caches it as a first time variable, receives and parses the satellite navigation data to obtain all character strings, obtains a character string as a current character string to be processed, determines a type of a system protocol identifier, if it is a preset system protocol identifier, converts a time field of the current character string to be processed into a local time zone time value for storing, obtains the current time and stores it as a second time variable, obtains a first time compensation value according to the first and second time variables, obtains satellite navigation time according to the first time compensation value and the maximum local time zone time value and sets system time as satellite navigation time.

A processing method and system of cloud broadcasting and printing data, relating to the field of information security. When receiving a service obtaining request, a server processes first data in the service obtaining request into printing and broadcasting data, processes the printing and broadcasting data into first verifying data and then sends the first verifying data to a cloud broadcasting and printing service platform. The cloud broadcasting and printing service platform processes the first verifying data into second verifying data and then sends the second verifying data to a cloud broadcasting and printing all-in-one machine. The cloud broadcasting and printing all-in-one machine processes the second verifying data into printing and broadcasting data, and extracts printing information and broadcasting information from the printing and broadcasting data at a time and performs broadcasting and printing respectively.