3 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 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 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.