5 results about "Secure File Transfer Protocol" patented technology

The invention discloses an image secure transmission processing method and system based on homomorphic encryption, and the method comprises the steps: obtaining an input image, converting the input image into a pixel matrix, and carrying out the preprocessing of the pixel matrix according to an operation type; encrypting the preprocessed data by using a BFV homomorphic encryption scheme to generate a ciphertext object; serializing the ciphertext object and uploading the ciphertext object to a third-party server through a security file transfer protocol; executing image matrix operation in the ciphertext state to obtain a ciphertext result; and serializing the ciphertext result, transmitting the serialized ciphertext result back to a user side, decrypting the ciphertext result by using a local private key, and recombining the decrypted ciphertext result into a processed image matrix. Core operation of an image in an encryption state is realized through a homomorphic encryption technology, matrix recombination optimization, ciphertext serialization transmission and a self-adaptive filling mechanism are combined, the integrity of an image processing function is ensured, access of a third party to original data is thoroughly isolated, and the problem of privacy leakage caused by decryption calculation required by traditional encryption is solved.

The invention discloses a parallel processing method and device for inspection tasks and a storage medium, and belongs to the field of intelligent inspection of substations. The method is applied to an analysis host, and comprises the following steps: receiving a plurality of inspection task requests sent by an inspection host, sequentially adding the inspection task requests to a task queue, and splitting the inspection task requests into a plurality of image analysis tasks; periodically polling the task queue by a polling window through a main thread in the thread pool, and distributing the image analysis task to an idle thread for parallel processing; the method comprises the following steps of: firstly, calling objects in an object pool of a security file transfer protocol client side in parallel by utilizing a sub-thread, and downloading an analysis image; an image analysis request is sent to the application program interface in parallel, an image analysis result is received, drawing is carried out, and an analysis result graph is obtained; and finally, the objects are called in parallel, and an analysis result graph is uploaded. And image analysis results are integrated in parallel through the main thread and are transmitted back to the patrol host. According to the invention, the parallel processing rate and response efficiency of data can be improved, and the security and reliability of transmission are ensured.

The application provides a file fragment transmission method and device, a server, a medium and a program product, and relates to the technical field of big data. The method comprises the following steps: in response to a file fragment transmission request of a target file, a secure file transfer protocol (SFTP) session channel is established between the target file and a target storage server; when one file fragment corresponding to the target file is received, it is checked whether the information digest value of the file fragment is consistent with a preset information digest value, and when the information digest values are consistent, the file fragment is transmitted to the target storage server based on the SFTP session channel; when all file fragments of the target file are transmitted, when the first information digest total value of all file fragments matches the second information digest total value of the target file, the target file is obtained by combining all file fragments in the target storage server, and the SFTP session channel is closed. In the file dump process, the local disk IO overhead and the overall network overhead of the receiving server are effectively reduced.

The invention discloses an event subscription method, device and system and a nonvolatile storage medium. The method comprises the steps that in the session initialization process, a server determines whether client equipment supports a subscription extension field or not, and the subscription extension field is used for indicating that the client equipment supports event subscription through a secure file transfer protocol; after it is determined that the client supports subscription of the extended field, subscription information sent by the client device through a secure file transfer protocol is received, and the subscription information comprises identification information of the client device, a subscription path and a subscription event type; and providing the event information to the client device through a secure file transfer protocol according to the subscription information. According to the method and the device, the technical problems of high server load and message lag of the client equipment caused by the fact that event information needs to be acquired between the client equipment and the server which adopt security file transfer protocol communication in related technologies are solved.

The invention discloses a detection method, device and equipment for security baseline configuration of an operating system and a medium, relates to the technical field of computers, is applied to an EIOP automatic base, and comprises the following steps: determining a shell script of each check item corresponding to a preset security baseline standard; performing task arrangement based on a shell script to obtain a total task; the general task comprises a security baseline automatic detection task corresponding to each inspection item; each security baseline automatic detection task comprises a plurality of sub-tasks; and sending the total task to a plurality of to-be-detected machines, so that the to-be-detected machines detect security baseline configuration of an operating system in the to-be-detected machines based on the total task, and sending a detection result to a front end based on a security file transfer protocol to visually display the detection result. According to the invention, whether the security baseline configuration of the operating system is compliant can be simply and quickly detected.