7results about How to "Implement encryption protection" patented technology

The invention discloses a data isolation encryption method, device and system and a readable storage medium, which are applied to the field of data security, and are characterized in that a user identity is embedded into a data writing request through an application proxy gateway, a corresponding encryption key is determined through a database proxy gateway according to the user identity in the data writing request, and encryption is carried out; and encryption protection of database data is realized. That is to say, when a user logs in the application service to access the database, differential key encryption of the application identity is realized on the database through the access proxy of the double gateways, so that the database has higher security under the condition of encrypted storage, and the application service does not need to modify codes and is non-inductive to service logic; data encryption protection can be implemented before and after the application server, subsequent isolation encryption of the extensible permission access control capability data is more flexible and convenient, and the expansibility is high.

The invention provides a cryptosporidium identifier embedding method and device from slice scanning to slice generation of an instrument and a readable storage medium of the cryptosporidium identifier embedding method and device, and tracking, verification and protection of data are achieved by embedding a unique encryption identifier in slice data. The method specifically comprises the steps of scanning by an instrument to generate original image data, segmenting the data into a plurality of slices and compressing the slices, judging whether cryptospores exist or not, generating cryptospore identifiers by using an AES encryption algorithm, and embedding the identifiers into metadata of slice files. The invention further provides a cryptosporidium judgment method, and judgment is carried out by calculating the perimeter, the area, the circularity, the aspect ratio and other characteristic parameters of the contour. Meanwhile, the invention further comprises a data integrity verification method. The method has the beneficial effects of data integrity and authenticity guarantee, efficient data tracing and management, automation and efficiency improvement, security enhancement and privacy compliance, support of scientific research and clinical cooperation and the like.

The invention discloses a vehicle-mounted digital key system for traffic service, which relates to the technical field of vehicle-mounted digital keys and comprises a multi-body parallel chain module, a relay chain module, an authority core management module, an encryption storage module and a cross-chain communication adaptation module. According to the method, the traffic service subject-parallel chain mapping architecture is constructed, the multi-subject permission data is split into independent parallel chains, cross leakage of the permission data is avoided by utilizing physical isolation characteristics, the problem of high data security risk of an existing centralized architecture is solved, and the security risk of the existing centralized architecture is reduced through a Byzantine fault-tolerant verification mechanism of a relay chain. Cross-chain data synchronization and authority real-time verification are realized, consistency and timeliness of authority change during multi-subject switching are guaranteed, dynamic authority adaptation requirements in traffic services are met, accurate authority management and control and data encryption protection are realized through cooperation of an authority core management module and an encryption storage module which are dominated by a vehicle owner, and safety and reliability are improved. And illegal attacks and data tampering can be effectively resisted.

This application discloses a data transmission method, apparatus, computer device, and storage medium. The method includes: negotiating a key between a first device and each second device based on preset configuration parameters to generate a broadcast key and a content key between the first device and each second device; encrypting broadcast data using the broadcast key to generate encrypted broadcast data, and broadcasting the encrypted broadcast data; when connecting to a target second device that communicates with the first device based on the encrypted broadcast data, encrypting the content data using the content key to generate encrypted content data; sending the encrypted content data to the target second device and receiving the encrypted data processing result returned by the target second device based on the encrypted content data; and decrypting the encrypted data processing result using the content key to obtain the data processing result. By using the content key and broadcast key negotiated between the devices for encrypted data transmission, data security is ensured.

The invention discloses a Map structure construction method supporting a hidden access mode. The method mainly comprises the following steps: (1) based on an RAM (Random Access Memory) construction method of a hidden access mode provided by the invention, a user encrypts and randomly classifies data, encrypts a classification result by using the RAM construction method, and uploads the classification result to a service provider; (2) based on a search structure of a general hidden access mode, a user organizes and encrypts each type of classified data and uploads the data to a service provider; and (3) the service provider executes general operation of Map according to the received query instruction and auxiliary parameters from the user, wherein the general operation comprises insertion, deletion, updating and data retrieval. The method can be applied to data encryption storage and encrypted data query based on the Map structure in actual life and business, and has the advantages of being high in universality, safe, efficient, capable of protecting privacy, easy and convenient to use, high in efficiency, small in memory and time consumption and the like.

The invention discloses a software shelling method and a shelling method based on a quantum random number entropy source. The shelling method comprises: obtaining a protection key and a stream key, and storing the protection key in a password component, wherein both the protection key and the stream key are random numbers; performing stream encryption processing on a code segment plaintext in a target file by using the stream key, and overwriting the code segment plaintext in the target file with the obtained code segment ciphertext; sending an ID value of the protection key and a data segment to the password component, so that the password component obtains the corresponding protection key to encrypt the data segment; receiving the data segment ciphertext returned by the password component, and writing the ciphertext into the binary encoding address of the target file; and improving the security protection capability of executable code.

The present invention proposes a data integrity and confidentiality transmission implementation method suitable for agricultural information big data service, and the method specifically includes the following steps: S1, sensor data collection and sorting, obtaining the original data matrix of each plot unit; S2, encrypting the original data matrix of each plot unit, obtaining the encrypted transmission data block corresponding to the plot unit; S3, judging whether it is in the transmission window, if it is in the transmission window, entering S4; S4, transmitting the encrypted transmission data block to the cloud server through the data link; S5, the cloud server performs data restoration on the received transmission data block to obtain the decomposition matrix B; S6, the cloud server obtains the decomposition matrix C according to the decomposition matrix B, and obtains the original data matrix based on the decomposition matrix B and the decomposition matrix C. In the present invention, multi-level encryption protection in the transmission process is realized by splitting the original data matrix twice.