58results about How to "Reduce the possibility of tampering" patented technology

The invention provides a method and system for realizing an electronic transaction through sound waves. The method comprises the steps that a user uses a mobile terminal of the user to log in an App account to select a sound-wave electronic transaction item, the user obtains a sound wave file, and the sound wave file is played; after a sound wave recognition device receives and recognizes information contained in the sound wave file, a transaction terminal device encrypts the information contained in the sound wave file and sends the encrypted information to a bank server; the bank server decrypts the encrypted information, then carries out transaction confirm according to the information contained in the sound wave file, and sends related information of the transaction to the App when the transaction is confirmed to be successful; when the user selects the confirm item, and selects some bank card on an interface, responded by the App, of bank cards which are in the account of the user, are successfully authenticated and bound, the App sends information of the bank card and the sound wave file or the information contained in the sound wave file to the bank server after carrying out encryption, and the transaction is completed after the bank server carries out decryption, and the user inputs a correct bank card password on the transaction terminal device.

Disclosed are a method and apparatus for identifying authenticity of evidence of both parties based on a block chain storage. According to the prosecutor's claim of a real case event, on the one hand,the prosecutor can identify the prosecution evidence used to confirm the case event through the objective process, on the other hand, the respondent can identify the evidence used to falsify the caseevent through the objective process. Wherein the target flow includes: identifying the electronic evidence of the target, giving a higher authenticity reference score to the target electronic evidence when it is determined that the target electronic evidence has been deposited by the at least one alternative block chain depository platform, and giving a lower authenticity reference score to the target electronic evidence when it is determined that the target electronic evidence has not been deposited by the at least one alternative block chain depository platform.

A method of protecting confidential files is provided to definitely protect business confidential files in accordance with a security policy. In the method of protecting confidential files, a management server registers in advance information of business applications to allow an access to confidential files and the information of such registered applications is distributed to each client as needed. When a business application refers to confidential files, it is judged (application is authenticated) at a starting-up time of a business application if the application is registered in advance in the server, and its own process information is registered in an I / O acquisition module only when the application is successfully authenticated. In the I / O acquisition module, the access to confidential information is permitted only in the case that a process is consistent with the registered process information, and any access is otherwise rejected.

The invention provides a network security control method and device. The method comprises the following steps: constructing at least one virtual machine corresponding to at least one piece of security equipment; arranging the at least one virtual machine in a network to be controlled; and performing security monitoring on at least one object to be controlled in the network to be controlled by using the at least one virtual machine. Through the scheme, the data security can be enhanced.

The invention discloses a MCU, a terminal and a control method. The MCU comprises an input selector, having an input end as a debug pin (Debug pin) of the MCU, a control end as a security mode (sec) control end of the MCU and a first output end, and being configured to enable the MCU to run normally but not be accessed through the input end and to enable only the input end to be connected with a debug module through the first output end; and the debug module, connected to a storage module, and configured to only control the storage to perform operations to erase and / or clear in a security mode. The technical scheme of the invention can achieve beneficial effects of simple operation process, small security risk and good user experience.

The invention provides a CAN bus data encryption and decryption method and device, and the method comprises the steps: generating a single-byte random number through a control unit, and enabling the range of the single-byte random number to be 1-255, processing the single-byte random number by a preset function to obtain a random ID with an ID domain of 29 bits, wherein the preset function is a reversible function, and the random ID for sending the encrypted data is random each time, data security is improved, the economic loss caused by modification of important parameters (hours, GPS parameters) of a service and leasing unit is avoided, at least two random IDs can be sent each time, and the true value exists in one random ID, so that the possibility that the CAN bus data is tampered is reduced, and the data security is greatly improved.

The present invention provides a digital copyright method and system based on a secure multi-party computing privacy time stamp. The method includes: Internet copyright protection service providers and users formulate smart contract rules; users create and pass copyright dispute smart contracts when disputes over copyright ownership occur, And the time stamp fragment collection of both users is saved on the blockchain; the nodes participating in the calculation on the blockchain send the calculation results to the recovery difference smart contract; the recovery difference smart contract calculates the creation time stamp difference between copyright dispute users value, and output the difference and the corresponding copyright dispute smart contract address. The present invention can solve the privacy protection problem of creation time in the blockchain copyright system without destroying the framework of the existing blockchain copyright system, ensures the anonymity of the user, and makes the private data truly in the hands of the user.

The invention provides a vehicle-mounted program file encryption method and system, which relate to the technical field of electronics and electrics. The vehicle program file encryption method includes: the remote server obtains the vehicle unique identification code of the vehicle to be downloaded; divides the data in the vehicle program file into more than one data segment; uses the vehicle unique identification code and more than one data segment to generate more than one target data segments, and calculate the respective message authentication codes of more than one target data segment, at least one target data segment includes a vehicle unique identification code; use a key and Advanced Encryption Standard AES to encrypt more than one target data segment; Based on the encrypted one or more target data segments and the message authentication codes of the one or more target data segments, one or more encrypted sub-files are generated. Utilizing the technical scheme of the invention can improve the safety of automobile control.

The invention discloses a food mall safety operation and maintenance system comprising a buyer terminal, a seller terminal, a server and a block chain network, the buyer terminal and the seller terminal are both connected to the server and are in bidirectional communication connection with the server, and the buyer terminal comprises a login module, a purchase module and a payment module; the seller terminal comprises a traceability information processing module, a sales recording module and a modification module, wherein the server is used for receiving and processing data sent by the buyer terminal and the seller terminal and storing the data into the blockchain network, the blockchain network and the server are in two-way communication through the sensor node, and the blockchain networkis used for verifying, storing and outputting the server data. Tamper resistance of the blockchain network is utilized to realize food safety traceability and accurate recording of transaction, and safety and stability of the whole operation and maintenance system are ensured.