7results about How to "Avoid reading" patented technology

This application relates to a cache management method, apparatus, computer device, medium, chip, and product. The method includes: acquiring a target task and a management command queue; the management command queue containing various management commands for the target task; when the last-level cache module does not contain dependency data required by a target subtask within the target task, in response to a first management command, reading the dependency data required by the target subtask from memory and storing the dependency data in the last-level cache module; in response to a second management command, initiating the execution of the target subtask; the target subtask includes an accelerator reading dependency data from the last-level cache module. This method can improve the processing efficiency of the target task.

This application provides a method, apparatus, computer device, and storage medium for calculating session duration. The method involves creating an access log table and generating link identifiers for each session in the access log table; creating a session log table based on the link identifier, start time, end time, and access duration of each session, and using the link identifier and start time in the session log table as the session identifier; and replacing records with the same session identifier in the session log table using the ClickHouse replacement engine. This invention integrates the session duration algorithm into the ClickHouse database, fully utilizing the ClickHouse aggregation and replacement engines to achieve real-time statistics of access duration. This not only reduces intermediate steps and saves costs associated with devices, storage, and maintenance such as those associated with Kafka, but also eliminates the need to develop external applications, avoiding the bandwidth and memory costs associated with reading and writing data.

The application discloses an encryption and decryption method, device and system, and belongs to the technical field of cryptography; considering that each user in the system is assigned with a specified access control strategy and attribute, the access control strategy of the user determines which type of receiver he can send a message to in the encryption process, and the attribute of the user determines which sender he can receive a message from; the application expresses the access control strategy based on a linear secret sharing matrix (LSSS matrix) to realize flexible expression of an arbitrary access strategy and has strong expression capability; on the basis, the application generates an encryption key embedded with a sender access control strategy for the sender, so that the fine-grained control of information flow in the system is realized by assigning corresponding access control strategies and attributes to different users in the communication process, the flow direction of the information flow of the encryption system can be better controlled, and the behavior of the user can be more conveniently and efficiently managed.

This application discloses a data processing method, apparatus, and electronic device. The method includes: obfuscating and encrypting code to be processed using an Abstract Syntax Tree (AST) to obtain a first target code; and processing the first target code using JSVMP to obtain a second target code. The technical solution provided by the embodiments of this application ensures that the obtained second target code undergoes multiple processing steps, increasing the difficulty of analyzing the original code corresponding to the second target code. This makes it more difficult for malicious actors to correctly analyze the original code corresponding to the second target code, thereby improving the security of the original code corresponding to the second target code and the security of the website corresponding to the second target code.

The invention discloses a key management method, device and equipment and a storage medium, and belongs to the technical field of data processing, the method is executed by a server cipher machine, and the method comprises the following steps: generating a system protection key; generating a service key according to a received key generation request, and determining a target level of the service key; performing component storage on the service key according to the system protection key and the target level, and recording a component storage address of the service key; and generating a key memory index corresponding to the service key according to the target level, the component storage address and the key generation request. According to the method, the high security of the service key is ensured, the response speed of security services such as encryption and decryption or signature verification which use the service key to carry out cryptographic operation is shortened, and low-delay and high-concurrency access to massive service keys is realized.

The invention discloses a hardware one-way security data ferry storage device and a method thereof, and aims to solve the problems that cross-physical isolation network data exchange is tedious in operation, low in efficiency and high in security risk. The device comprises a first storage space, a second storage space, a first host interface used for being connected with a first network, a second host interface used for being connected with a second network, a control logic unit and a hardware one-way data transmission module. The two host interfaces are physically independent and can be simultaneously and respectively connected to computers of networks with different security levels. When a low-security network is connected through the first host interface, only the first storage space is visible, and written data is synchronized to the second storage space in real time by the one-way transmission module; and when the high-security network is connected through the second host interface, only the second storage space is visible for reading the synchronized data. According to the mechanism, the possibility of reverse leakage of data is fundamentally avoided, and the efficiency and convenience of data ferrying are remarkably improved while the security of the intranet is ensured.

This application relates to a key writing and reading method, apparatus, and vehicle, comprising receiving a first target key sent by a diagnostic tool, wherein the first target key is generated by the diagnostic tool based on a vehicle code; transmitting the first target key to a key via a low-frequency method; receiving the first target key returned by the key to complete the storage of an identifier and a first random location; sending a second target key to the key; and receiving the second target key returned by the key to complete the storage of an identifier and a second random location. This application changes the original method where the key and vehicle are matched solely using a key related to vehicle authentication. By adding a second target key as a dedicated key, and combining the first and second target keys for random storage, it prevents anyone with a universal device from reading the key's internal information simply by reading the first target key.