28 results about "File transmission" patented technology

This application discloses a file transfer method, apparatus, electronic device, and storage medium, relating to the field of financial technology. The method includes: parsing the current file transfer task to obtain the address of the source device, the address of the target device, task attribute information, and security compliance information; filtering multiple initial transfer strategies based on the security compliance information to obtain multiple candidate transfer strategies; determining the file transfer link based on the address of the source device and the address of the target device; determining the comprehensive suitability of each candidate transfer strategy based on the task attribute information, the real-time link quality information of the file transfer link, the real-time resource information of the source device, and the real-time resource information of the target device; and determining the target transfer strategy from the multiple candidate transfer strategies based on the comprehensive suitability; and executing the current file transfer task according to the target transfer strategy, enabling the transfer strategy to adapt to the complex and dynamically changing intranet environment of financial institutions, thereby improving file transfer efficiency and success rate.

The application relates to the technical field of data transmission, in particular to a file transmission method and device based on a protocol hybrid strategy, which comprises the following steps: dividing a to-be-transmitted file into data blocks, and calculating the check information of each data block; transmitting the metadata of the to-be-transmitted file and the check information of each data block by using a TCP protocol; acquiring current network information, and determining a protocol hybrid strategy according to the current network information; transmitting all the data blocks by using a mixed transmission mode of the TCP protocol and the UDP protocol according to the protocol hybrid strategy; and completing the transmission of the to-be-transmitted file when an acknowledgement message fed back by a receiving end is received, wherein the acknowledgement message is generated by the receiving end after integrity verification of all the data blocks according to the metadata and the check information. The embodiment of the application combines the advantages of the TCP protocol and the UDP protocol, and achieves the effect of giving consideration to the accuracy and transmission efficiency of file transmission.

This application provides a file storage method, apparatus, electronic device, and storage medium. The method includes: receiving chaincode parameters and a file to be processed through a conversion layer of a blockchain server; identifying the chaincode parameters; after confirming that the chaincode parameters include a file identifier, establishing a connection between the conversion layer and the blockchain server, and transmitting the file to be processed to the blockchain server; performing fragmentation on the file to be processed to obtain file fragments; calculating a digest of the file fragments to obtain a fragment hash value for each file fragment; and distributively storing the fragment hash values ​​on the blockchain server. By receiving the chaincode parameters and the file to be processed through the conversion layer of the blockchain server, identifying the chaincode parameters, and establishing a connection with the blockchain server after confirming that the transmitted file is a file, the method enables file storage on the blockchain server, improving file transmission efficiency, eliminating reliance on third parties, and enhancing data security.

The application relates to the technical field of data security, and specifically discloses a file transmission method and device, computer equipment, a storage medium and a computer program product. The method comprises the following steps: converting a file into a data input stream, reading a plurality of original arrays corresponding to the file from the data input stream; performing encoding processing on each original array to obtain an encoding array corresponding to each original array; performing encryption processing on each encoding array to obtain an encryption array, and determining a sub-output stream of the encryption array; determining a transmission message corresponding to the encoding array based on the sub-output stream and an encryption key used in the encryption processing; and sequentially transmitting the transmission messages corresponding to the encoding arrays. The method can ensure the transmission security of a super-large file and improve transmission efficiency.

The application discloses a Flink-based unstructured file transmission method and system. The method comprises the following steps: reading a file from object storage and encapsulating the file into a data object through a self-defined Source operator; splitting the data object into a data block stream containing block serial numbers through a flatMap operator; grouping the data block stream based on a file name keyBy, so that data blocks of the same file are routed to the same task instance; initializing an expected block serial number, an out-of-order block cache, a completion flag and a temporary file path through a KeyedProcessFunction, sequentially writing a local temporary file and processing out-of-order blocks, uploading the temporary file to a target object storage after completion, and cleaning up the state. The application fully utilizes the distributed parallel capability and state management mechanism of Flink, realizes efficient parallel transmission, out-of-order recombination, integrity check and breakpoint resume of unstructured files, simplifies the integration with a Flink stream batch integrated architecture, and improves transmission efficiency and reliability.

The application discloses a kind of physical isolation file safety exchange systems and methods based on mechanical arm, the system includes: PLC controller is used to receive the instruction issued by host computer, and according to instruction control mechanical arm completes the safe exchange between U disk and optical disk in low density network system, high density network system, U disk disinfection system and optical disk destruction system, control laser range finder reads the height and position of blank optical disk, calculates the current quantity of blank optical disk;User uploads the file that needs to be imported to high density website to low density website through low density network user terminal, and downloads the file exported from high density network from low density website through low density network user terminal;User uploads the file that needs to be exported to low density website to high density website through high density network user terminal, and downloads the file that needs to be exported to low density network from high density website through high density network user terminal.The application improves the security of file transmission, prevents data leakage and virus propagation.

This invention provides a method and system for transferring large files. Each file within a large file is allocated to a corresponding file cluster according to its sensitivity level. Based on the sensitivity level of each file cluster, the cluster is divided into blocks. An independent encryption key is generated for each file block, and the file blocks are encrypted and transmitted to the receiving end. At the receiving end, an independent decryption key is generated for each encrypted file block, and all decrypted file blocks are merged to form the original file cluster. This invention divides large files into multiple file clusters based on sensitivity, dynamically blocks file clusters based on their sensitivity, and generates independent encryption and decryption keys for each file block, enhancing the security and tamper-proof capabilities of large file transmission. Furthermore, by extracting multi-level features from elements, element classes, and even the database level, a highly correlated hierarchical fingerprint chain is generated, enabling precise location and traceable verification of tampering.

The application relates to the technical field of remote control, in particular to an industrial equipment remote synchronous control method and system based on OpenHarmony, the method comprises the following steps: obtaining equipment information for remote control, and performing initialization operation on a communication environment; performing path selection on the communication environment based on link quality evaluation; constructing a structured message protocol based on application semantics according to the selected communication path; introducing an incremental state synchronization mechanism on the basis of the structured message protocol; constructing an industrial-grade command scheduling engine based on the incremental state synchronization mechanism; establishing an adaptive file transmission protocol; and completing remote synchronous control through a network jitter sensing and intelligent retransmission mechanism. Through the industrial-grade command scheduling engine and the intelligent retransmission mechanism, the application realizes ordered execution of remote commands and reliable completion of file transmission, supports automatic processing of operation and maintenance tasks, and improves the efficiency and reliability of industrial remote operation and maintenance.

Provided are a data retrospective verification method and apparatus, relating to the technical field of data inspection and validation. The method includes the following steps: generating a unique and unalterable-evidence data label for evidence data through expanded information and an evidence element of the evidence data determined by an evidence-providing party during verification, storing the data label to an evidence-preserving party, and acquiring, by an evidence-acquiring party, a target data label from the evidence-preserving party in response to a data retrospective verification request, and verifying data according to the target data label to provide a more reliable and efficient data verification solution for MIME (Multipurpose Internet Mail Extensions) and S / MIME (Secure / MIME) application scenarios such as an email system and a file transfer protocol.

This invention discloses a secure file transfer system based on path encryption and dual-role account management, comprising: a system administrator module for generating storage server access parameters; a confidentiality administrator module for generating basic storage server access configurations; a storage server module for providing read and write services for the actual directory structure and file data; an encrypted path component for constructing a path mapping table; a client module for initiating file access requests and displaying the returned file list and file data; a proxy transmission risk control module for generating a path risk scoring model based on an improved MetaPath2Vec model; a proxy transmission execution module for recording transmission audit data and updating the risk model; and a transmission administrator module for reviewing and returning approval results. This invention employs path encryption and dual-role management to achieve risk identification and security control throughout the entire file transfer process.

This application provides a data transmission and storage method, apparatus, device, medium, and product for an ERP system. It relates to the field of information security technology. The method includes: in response to data transmission between departments, encrypting the data to be transmitted based on the transmission key corresponding to the data sender to generate an encrypted transmission file; the transmission key is generated based on the transmission key corresponding to the data sender's immediate superior role and the data sender's role attributes; in response to the existence of data to be stored, generating a first protection key and a second protection key based on the storage key corresponding to the data storage provider; the storage key is generated based on the storage key corresponding to the data storage provider's immediate superior role and the data storage provider's role attributes; and generating an encrypted storage file using a preset cryptographic algorithm based on the first and second protection keys. This application significantly improves the data security of enterprise ERP systems through a role-based key derivation mechanism and a full lifecycle management strategy.

The application discloses a kind of based on libcurl and gatekeeper equipment implementation ftp client multiple file transmission method and system, its method includes: obtaining the first communication protocol of the ftp server connected by target ftp client and the second communication protocol of data server to be received, data transmission request is sent to ftp server and data server to be received respectively based on the first communication protocol and second communication protocol by libcurl client, internal network data receiving channel and external network data transmission channel are constructed by gatekeeper equipment, multiple file transmission tasks are constructed using thread pool and call gatekeeper node receives batch files transmitted by target ftp client through internal network data receiving channel, and the batch files are uploaded to data server to be received through external network data transmission channel.The communication protocol of different servers can be used to realize the butt joint of server, and then lay the foundation for subsequent data transmission, without manual socket socket creation, greatly saving manpower cost.

A computer implemented method including: receiving a history database file and a public key of a public / private key pair from an external server; generating aircraft maintenance and operations data using one or more onboard sensors that are configured to sense one or more characteristics of aircraft maintenance and operations systems; classifying the generated aircraft maintenance and operations data as selected data and unselected data based on a comparison of the sensed aircraft maintenance and operations data with stored aircraft maintenance and operations data of a trained aircraft data model; storing the selected data in the received history database file; encrypting the received history database file using the received public key of the public / private key pair to generate an encrypted history database file including selected data; transmitting the encrypted history database file including the selected data to an external server.

This application discloses a file transfer method, apparatus, electronic device, and storage medium, relating to the field of communication technology. The method includes: responding to a file transfer request initiated by a sending end, obtaining the file data to be transferred and the communication number identifier corresponding to the receiving end, and uploading the file data to be transferred to a cloud storage system; querying the reachability status of the device corresponding to the communication number identifier, and when the device is detected to be reachable, sending a notification message containing a file transfer prompt to the receiving end; receiving an authorization instruction from the receiving end based on the notification message, verifying the authorization instruction, and generating a time-sensitive secure download link; and sending the secure download link to the receiving end so that the receiving end can download the file data to be transferred from the cloud storage system based on the secure download link. This achieves the technical effects of enabling universal and reliable point-to-point addressing, ensuring accurate and timely delivery of file transfer notifications, granting the receiving end the right to choose file transfers, and improving the security and controllability of the file transfer process.

This invention discloses a secure file transmission method based on low-entropy segmented credentials and stateless relay, comprising a sender client, a receiver client, and a relay server. After file verification, the sender client generates a transmission code, which consists of a search code and a key code. The sender client transmits the transmission code to the receiver out-of-band. The receiver client reconstructs the derived search code from the transmission code, calculates the derived key, and thus reconstructs and decrypts the complete encrypted file to obtain the plaintext file. The relay server provides key-value pair-based data storage services; it only needs to provide the block search code as the key to address and return data blocks. This invention provides a secure file transmission method based on low-entropy segmented credentials and stateless relay. The values ​​in the relay server are not the complete encrypted file, and there is no obvious logical relationship between the key-value pairs, effectively weakening the impact of low-entropy credentials on security.

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 present invention relates to the field of cybersecurity, and more specifically to systems and methods for securing email communications in a networked environment. An aspect of the present invention relates to a method for securing email communications in a networked environment comprising an email server (1) and a containerized host server (2). The email server (1) receives an incoming email message (3) directed to a user (4), wherein the email message (3) includes at least one link (5) providing reference to a remote environment (6) and / or a downloadable content (7). A secured email message (8) is generated by removing the at least one remote environment link (5) and / or the downloadable content (7) from the incoming email message (3), and including at least one link (9) providing reference to a containerized environment (10). The user (4) is provided with the secured email message (8). Upon activation of the containerized environment link (9) by the user (4), the user (4) is redirected to the containerized environment (10) associated with the containerized environment link (9). Within the containerized environment (10), a content associated with the remote environment (6) and / or the downloadable item (7) is visually rendered in a user-accessible interface, while preventing the user (4) from inputting data and / or transferring of files to a user's device (11).

This distributed backup method, based on node health assessment and version lifecycle management, involves data backup and service node management technologies. The method includes: service initiation of self-backup, creating hot backup packages or temporary versions; the central hub, based on backup information, does not pull hot backup packages, stores temporary versions locally, and pulls long-term versions; the central hub performs storage node election, with the server accessing each elected storage node sequentially. If a node authorizes, S2S file transfer and storage are performed; if not, a rejection flag is set, and a replacement node is elected; the central hub determines whether to elect a replacement node based on the number of successfully stored authorized nodes; this continues until a preset number of distributed storage nodes have successfully stored the data. This method achieves dynamic, fine-grained hierarchical management of backup versions, improves the accuracy and reliability of node health assessment, achieves deep integration of backup operations and node management, and ultimately reduces storage resource waste, improves backup success rate, and enhances data security.

This invention discloses a method and system for managing code files, relating to the field of computer technology. One specific implementation of the method includes: a code management server performing integrity verification on the code file corresponding to a code merging operation and transmitting the code file to multiple burning servers; the multiple burning servers being deployed geographically; the burning servers burning the verified code file to one or more burning storage media; a verification server reading the code file from any of the burning storage media and verifying it; if verification fails, reading the code file from a burning storage media at another deployment location; if verification passes, transmitting the code file to a recovery server, which then performs functional verification on the code file and recovers the code. This implementation effectively avoids the loss of code files due to backup server failure in extreme disaster scenarios.

This invention discloses a file transfer optimization method, apparatus, electronic device, and storage medium based on dynamic channel remaining capacity awareness, relating to the field of data transmission technology. The main components include: determining the data to be transferred in response to a file transfer request sent by a data access device and reading the data into a transmission buffer; the data holding device is a Bluetooth Low Energy device and has established a Bluetooth connection with the data access device; real-time detection of channel remaining capacity based on a buffer push cycle; the channel remaining capacity is the remaining data capacity of the corresponding Bluetooth channel, and the buffer push cycle is less than the current Bluetooth communication cycle between the data access device and the data holding device; and when the channel remaining capacity is greater than a first data amount, pushing the first data amount of data to be transferred from the transmission buffer to the Bluetooth channel until the transmission buffer no longer contains the data to be transferred. This invention improves the transmission rate when transferring files via Bluetooth Low Energy.

Systems and methods are described herein for improving live streaming. A live content item comprising a plurality of segments is received at a server, and a manifest file is generated to enable streaming of the content. A segment of the plurality of segments is identified as being below a quality threshold. The segment is processed using a neural network to generate an improved-quality segment, which is subsequently transcoded into at least one representation of an Adaptive Bitrate (ABR) ladder. The manifest file is updated to reference the improved-quality segment in place of, or in addition to, the original segment. In response to a request to access the content item, the updated manifest file is transmitted to a client device.

Systems and methods associated with media authentication are disclosed. In one illustrative implementation, an exemplary method may comprise performing validation processing regarding a media capturing device, such as validation processing involving a key pair based on a device validation operation, generating a signed hash associated with data of a captured media file, associating the signed hash with the key pair, and transmitting the signed hash and the captured media file to an offline storage component for storage. In certain embodiments, exemplary methods may relate to topics such as cryptographic chains of trust, real user presence, device integrity, capturing media files, and / or managing media files.

The application relates to an FTP unstructured file transmission breakpoint continuation implementation method and device based on DataX. The method comprises the following steps: integrating a progress tracking module into a DataX Writer, creating a transmission progress metadata file (TPMF) containing information such as the number of uploaded bytes and the state for each file and dynamically updating; deploying an independent process monitor to monitor task interruption and trigger progress persistence to the TPFM; a user selects a file through an independent FTP continuation scheduler, reads the TPFM and the server-side target file size to determine the breakpoint, calls an FTP REST command to continue from the breakpoint, updates the state after completion, and the like. The method realizes accurate progress recording, active saving in abnormal interruption and user-controllable continuation, avoids redundant retransmission, improves transmission efficiency and resource utilization, enhances data synchronization robustness and reduces operation and maintenance complexity. The method has small invasiveness to the DataX core, is strong in universality and is suitable for high-reliability synchronization scenes of large-scale unstructured files.

The application provides a media file transmission method, a packaging method and an unpackaging method. The method relates to the technical field of file transmission in the multimedia field, and comprises the following steps: acquiring a media resource description file, wherein the media resource description file comprises description files of a plurality of media files; selecting a description file of a target media file from the description files of the plurality of media files; the target media file comprises extension information of a target image in the target media file; sending a resource request based on the description file of the target media file, wherein the resource request is used for requesting the target media file; receiving the target media file; and presenting the extension information or presenting a control used for a user to perform an operation on the extension information in response to a selection operation performed on a target region of the target image. The media file transmission method provided by the application can improve the viewing experience.

Disclosed herein are a media file generation / receiving method based on an EOS sample group and a method of transmitting a media file. The media file receiving method may comprise obtaining one or more tracks and a sample group from a media file and reconstructing an access unit based on samples in the tracks and the sample group. The sample group may comprise a first sample group including end of sequence (EOS) information of video data to which the access unit belongs, and the first sample group may comprise one or more EOS NAL units and a first syntax element related to the number of EOS NAL units.

The application discloses a file sending risk early warning method based on multi-modal semantic analysis and behavior modeling, comprising: acquiring file transmission records and metadata; performing multi-modal content analysis on file entities to determine content semantic sensitivity scores; extracting risk features of five dimensions of sender role authority, receiver relationship, chat scene, sender behavior pattern and time context based on metadata to determine corresponding role authority matching scores, receiver relationship risk scores, behavior pattern anomaly scores and time context risk scores; comparing the scores of each dimension with preset alarm thresholds, determining dimension conflicts when the scores of at least two dimensions are lower than the alarm thresholds, reducing the weighted sum score according to the conflict resolution rules to obtain a comprehensive risk score; when the comprehensive risk score exceeds a preset report threshold, generating a risk analysis report containing the dimension identifier exceeding the threshold and pushing an early warning, solving the problems of single risk judgment dimension and high false alarm rate caused by lack of cross verification.