10 results about "Database encryption" patented technology

This invention belongs to the field of 3D simulation training technology and provides a lightweight modeling and real-time rendering 3D simulation training system. It includes a lightweight modeling module that optimizes 3D models to generate a lightweight model library that supports dynamic adjustment of detail levels; a real-time rendering and interaction module that uses a Unity3D or WebGL engine and dynamically adjusts the model detail levels based on LOD technology according to view distance; a multimodal training and assessment module that integrates question bank management, dynamic question loading, and automatic scoring functions; and a permission management and data security module that implements role-based permission isolation and uses the AES-128 algorithm to encrypt and protect data. This invention effectively eliminates the risk of unauthorized operations and data leakage in a single-machine environment through local role-based permission verification and multi-level database encryption mechanisms, ensuring system security in offline training scenarios. Compared to the plaintext storage and weak permission control of existing technologies, this invention significantly enhances the system's security capabilities.

The present application relates to the field of intelligent agriculture technology, and provides a lightweight intelligent production management system for multiple breeding varieties, which comprises a three-layer lightweight architecture using a hardware acquisition end, an edge operation end and a local interaction end. Each end cooperates to realize local data acquisition, analysis, operation, storage and interaction without cloud dependence. The system is based on the core data flow logic of real-time sharing of environmental monitoring data and precise feeding data linkage, feeding and weighing data and inventory accounting data, and integrally realizes intelligent regulation and control of breeding environment, precise feeding management, full-dimension production data acquisition, inventory digital accounting, equipment state monitoring and remote visualized supervision. By accurately implementing the hash value evidence mechanism into specific breeding business scenarios such as feed weight, weighing at slaughter, and feed into warehouse, and combining with multiple technical means such as device unique identification, timestamp, database encryption storage and write protection, the data is prevented from being tampered with throughout the whole process, and the authenticity and traceability of the data are guaranteed.

The invention relates to the technical field of database encryption, and provides a multi-client sequence uncovering encryption method and system based on block optimization, and the method comprises the steps: carrying out the encryption of a queried message and a query message through employing an expansion Hash calculation algorithm, and obtaining a ciphertext and a token; according to the expanded Hash calculation algorithm, a Hash component is added on the basis of a deterministic attribute maintaining Hash protocol, so that equal judgment and continuous judgment are supported; for the ciphertext and the token, verifying whether the block hash is equal; if all the block Hash are equal, the queried message is equal to the query message; if the block Hash is not equal, bit comparison is carried out, and the size of the queried message and the size of the query message are judged. Two types of judgments can be completed through one verification operation, so that the overall performance can be remarkably improved in a high-concurrency scene.

The application relates to a method for database encryption using an encrypted string, belonging to the technical field of information security, which comprises the following steps: a parameter for password calculation is stored in multiple different positions, when a database field needs to be accessed, the parameter is combined by using an algorithm to obtain a correct decryption key. An administrator needs to set a parameter, which is not in the form of a password, but in the form of a space coordinate position. Three space coordinates are provided by the administrator, a hardware identification code is obtained, and a fourth space coordinate is formed. An algorithm is used to generate an identification code authKey, which aims to replace the traditional administrator password setting by human subjective setting, and the coordinates are replaced by strings, and the algorithm is used to ensure the password complexity and security.

The application discloses a kind of based on dot matrix code micro perturbation anti-fake method and system, it is related to information coding field, comprising: by gathering anti-fake object information to generate binary dot matrix image, extract initial seed and store in database after SM4 algorithm encryption and associate object identification;Original image is enlarged and divided into checkerboard, to generate random perturbation parameter with encryption seed, the dot matrix in specified grid is controlled in direction, amplitude and is adjusted with grey scale, and generates the anti-fake dot matrix containing secret micro perturbation;According to material, select corresponding process coding and solidification, extract the code in image and micro perturbation characteristics when verifying, compare with database encryption record.This application has the advantages that: based on dot matrix code micro perturbation anti-fake method adapts to a variety of materials and scene, generates unique micro perturbation seed by SM4 encryption, realizes hidden difficult-to-copy perturbation characteristics, combined with core coding and micro perturbation characteristics double check, realize accurate anti-fake and whole-process closed loop, practicality and security are outstanding.

The application relates to the technical field of database encryption, in particular to a database encryption protection method of a safe operation and maintenance audit system. The method comprises the following steps: for a data table in a database, extracting table structure metadata of the data table, including attributes and corresponding data types and foreign key constraint information; executing different correlation analysis strategies through the combination form of data types of any two attributes to obtain the correlation degree of any two attributes; extracting SQL statements of the data table from operation logs of the database to determine the instruction frequent weight of any two attributes and obtain the grouping priority of any two attributes; dividing all the attributes into multiple encrypted attribute groups; and selecting different strength encryption strategies for the encrypted attribute groups according to the proportion of attributes containing foreign key constraint information in the encrypted attribute groups to perform encryption protection. The application can ensure the safety of relational data while significantly reducing the decryption delay of multi-table association query.

The application provides a database encryption configuration method and device, electronic equipment and a storage medium. The method comprises the following steps: obtaining a target configuration requirement of a database; calling a target configuration file of the database according to a target encryption algorithm represented by the target configuration requirement; modifying encryption attribute parameters of the database according to target encryption algorithm parameter information represented by the target configuration file; and configuring global encryption parameters of the database according to a modification result of the encryption attribute parameters of the database, so that the database performs data encryption and decryption based on the target encryption algorithm. The method provided by the above scheme performs corresponding encryption configuration on the database on the server according to the target configuration requirement of the database, so that the database supports user-defined encryption requirements without changing the original function of the database, and the client does not need to modify any code, thereby reducing the development cost of the database.

This application discloses a database encryption / decryption method, apparatus, device, and medium based on user-defined functions (UDFs), relating to the field of computer technology. It includes: acquiring an initial SQL statement sent by a client and parsing the initial SQL statement to extract database information, table information, and field information; using a preset strategy matching engine to perform encryption strategy matching based on the field information; if the field information matches successfully, modifying the initial SQL statement using a preset UDF function according to the matching result and the type of the initial SQL statement; sending the modified SQL statement to the database, so that the database can call the preset UDF function based on the modified SQL statement to perform corresponding encryption / decryption operations on the target data, and returning the execution result to the client. This improves the encryption coverage during database encryption, avoids data security blind spots, and reduces performance overhead.