CN108881258B - Intelligent system for safe transmission of network files - Google Patents
Intelligent system for safe transmission of network files Download PDFInfo
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- CN108881258B CN108881258B CN201810699647.6A CN201810699647A CN108881258B CN 108881258 B CN108881258 B CN 108881258B CN 201810699647 A CN201810699647 A CN 201810699647A CN 108881258 B CN108881258 B CN 108881258B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1074—Peer-to-peer [P2P] networks for supporting data block transmission mechanisms
- H04L67/1078—Resource delivery mechanisms
- H04L67/108—Resource delivery mechanisms characterised by resources being split in blocks or fragments
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
Abstract
The invention relates to an intelligent system for safe transmission of network files, which is particularly applied to transmission of large files, namely, after the large files are blocked, mutually associated groups are established, file subblocks in the groups are discontinuous and are independently transmitted in parallel, so that the safety of the files is improved, and meanwhile, a virtual port is used between an intelligent terminal and a proxy server to establish a parallel transmission path, so that the resource utilization rate can be effectively improved, and the data transmission efficiency is improved.
Description
Technical Field
The invention relates to the technical field of computer networks, in particular to an intelligent system for safe transmission of network files.
Background
With the development of information technology, new requirements are put forward on the performance, stability, safety and the like of file transmission in a network.
The prior art has lower transmission performance and lower processing speed, and is easy to make mistakes in the transmission process especially when the files in the network are larger; the multi-task transmission can be completed only by carrying out multiple operations, so that a large amount of network resources are occupied, and the transmission safety cannot be ensured by using block transmission although the processing efficiency can be improved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the intelligent system for the safe transmission of the network files is provided, and the technical problem that the network file transmission method in the prior art cannot be well applied to the transmission of large files is solved.
In order to solve the above technical problem, the present invention provides an intelligent system for network file secure transmission, including: the system comprises an intelligent terminal, a proxy server and a server; wherein the intelligent terminal that locates includes: an acquisition module: the method comprises the steps of acquiring a file to be transmitted, and judging the type of the file; a judging module: the file partitioning module is used for partitioning the file when the file is judged to be a large file; each file subblock is provided with an associated file header, and the file header comprises a block identifier, a tail byte of a previous file subblock and a CRC (cyclic redundancy check) value of the previous file subblock; the file header of the first file sub-block comprises a tail byte of the last file sub-block and a CRC (cyclic redundancy check) value of the last file sub-block; a grouping module: the device is used for grouping the file subblocks after being partitioned; the number of the file subblocks in the group is set according to the number of the parallel links, and the block identifiers of the file subblocks in the group are discontinuous blocks; and a transmission module: for transmitting each packet in turn to the proxy server using a parallel link.
Further, the transmitting the packets to the proxy server by using the parallel link in sequence comprises: randomly distributing file subblocks in the group to each virtual port, and then transmitting the file subblocks to a proxy server by using a parallel link; when the proxy server receives all the file groups, determining whether all the file sub-blocks are received according to the block identifiers; when the file is determined to be received, all the file subblocks are transmitted to a server, and the server checks each file subblock; and when the verification is passed, recombining to obtain the file.
Further, before the current file packet is transmitted, the method further comprises the following steps: judging the network state, namely transmitting the current file packet when the network state is good; otherwise, the state to be transmitted is carried out, and the network state is periodically detected.
Furthermore, virtual ports are arranged on the intelligent terminal and the proxy server, and parallel transmission paths are established through the virtual ports; and the number of the virtual ports is set according to the bandwidth between the intelligent terminal and the proxy server.
Furthermore, the proxy server is located at the server side and performs data transmission with the server by using a proprietary channel.
The intelligent system for network file safe transmission has the advantages that after the large files are blocked, the intelligent system for network file safe transmission establishes the correlated groups, the file subblocks in the groups are discontinuous and are independently transmitted in parallel, so that the file safety is improved, and meanwhile, a virtual port is used between the intelligent terminal and the proxy server to establish a parallel transmission path, so that the resource utilization rate can be effectively improved, and the data transmission efficiency is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic block diagram of a preferred embodiment of the intelligent system for secure transmission of network files of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
FIG. 1 is a schematic block diagram of a preferred embodiment of the intelligent system for secure transmission of network files of the present invention.
As shown in fig. 1, the present embodiment provides an intelligent system for secure transmission of network files, which includes an intelligent terminal on a user side, and a proxy server and a server on a network side; wherein, intelligent terminal includes:
an acquisition module: the method is used for acquiring the files to be transmitted and judging the types of the files.
Specifically, due to the diversity of network files, in order to improve the processing efficiency of files, files are divided into ordinary files (small files) and large files.
A judging module: the file partitioning module is used for partitioning the file when the file is judged to be a large file, wherein each file sub-block is provided with an associated file header, and the file header comprises a block identifier, tail bytes of a previous file sub-block and a CRC (cyclic redundancy check) value of a previous word block; the file header of the first file sub-block includes the last file sub-block's tail byte and the last file block's CRC check value.
Specifically, the setting of the block relevance can facilitate the verification and restoration of data on the network side, and the processing efficiency of the file is improved conveniently.
Preferably, the block identifier in the first file header may be set according to a file type identifier, the file type identifier is a predefined encoding sequence, and the subsequent block identifiers are incremented based on a specific step size, where the step size is greater than 1, so that the block identifiers are encoded according to a form agreed by a sender and a server, thereby effectively improving data security.
A grouping module: the device comprises a group of file subblocks, a plurality of parallel links, a plurality of groups of file subblocks and a plurality of groups of file subblocks, wherein the file subblocks are arranged in the group; the random grouping of the file subblocks can ensure the safety in the transmission process.
A transmission module: the proxy server is used for transmitting each group to the proxy server by using the parallel link in sequence; the method specifically comprises the steps of distributing file subblocks in a group to each virtual port randomly, then transmitting the file subblocks to a proxy server by using a parallel link, determining whether all the file subblocks are received or not according to a block identifier after the proxy server receives all the file groups, transmitting the file subblocks to the server when all the file subblocks are determined to be received, verifying each file subblock by the server, and recombining to obtain the file after the verification is passed.
Because different packets are transmitted by using parallel links in sequence, in order to ensure the stability of transmission, the state of the network is judged before the current packet is transmitted, when the state is good, the current packet is transmitted, otherwise, the state to be transmitted is carried out, and the state of the network is periodically detected; the random transmission of the file subblocks can effectively improve the data security.
Virtual ports are arranged on the intelligent terminal and the proxy server, and parallel transmission paths are established through the virtual ports. The number of the virtual ports is set according to the bandwidth between the intelligent terminal and the proxy server, so that the effective utilization of resources is guaranteed.
The proxy server is positioned at the server side and performs data transmission with the server by using a special channel; the proprietary channel can improve the security of data transmission.
The intelligent system for network file safe transmission of the embodiment establishes the correlated groups after the large files are blocked, the file subblocks in the group are discontinuous and are independently transmitted in parallel, so that the file safety is improved, and meanwhile, a virtual port is used between the intelligent terminal and the proxy server to establish a parallel transmission path, so that the resource utilization rate can be effectively improved, and the data transmission efficiency is improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The utility model provides an intelligent system for network file safety transmission for solve the technical problem that makes mistakes easily in the transmission course when network file is great, its characterized in that includes:
the system comprises an intelligent terminal, a proxy server and a server; wherein
The intelligent terminal includes:
an acquisition module: the method comprises the steps of acquiring a file to be transmitted, and judging the type of the file;
a judging module: the file partitioning module is used for partitioning the file when the file is judged to be a large file;
each file subblock is provided with an associated file header, and the file header comprises a block identifier, a tail byte of a previous file subblock and a CRC (cyclic redundancy check) value of the previous file subblock; the file header of the first file sub-block comprises a tail byte of the last file sub-block and a CRC (cyclic redundancy check) value of the last file sub-block;
a grouping module: the device is used for grouping the file subblocks after being partitioned and establishing a group which is related to each other;
the number of the file subblocks in the group is set according to the number of the parallel links, and the block identifiers of the file subblocks in the group are discontinuous blocks, namely the file subblocks in the group are discontinuous and are independently transmitted in parallel; and
a transmission module: the proxy server is used for transmitting each group to the proxy server by using the parallel link in sequence;
virtual ports are arranged on the intelligent terminal and the proxy server, and parallel transmission paths are established through the virtual ports; and
the number of the virtual ports is set according to the bandwidth between the intelligent terminal and the proxy server.
2. The intelligent system according to claim 1,
the transmission of the packets to the proxy server by using the parallel link in turn comprises the following steps: randomly distributing file subblocks in the group to each virtual port, and then transmitting the file subblocks to a proxy server by using a parallel link;
when the proxy server receives all the file groups, determining whether all the file sub-blocks are received according to the block identifiers; when the file is determined to be received, all the file subblocks are transmitted to a server, and the server checks each file subblock; and when the verification is passed, recombining to obtain the file.
3. The intelligent system according to claim 2,
before the current file packet is transmitted, the method further comprises the following steps: determination of the state of the network, i.e.
When the network state is good, transmitting the current file packet; otherwise, the state to be transmitted is carried out, and the network state is periodically detected.
4. The intelligent system according to claim 3,
the proxy server is positioned at the server side and performs data transmission with the server by using a special channel.
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| CN201810699647.6A CN108881258B (en) | 2018-06-29 | 2018-06-29 | Intelligent system for safe transmission of network files |
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| CN201810699647.6A CN108881258B (en) | 2018-06-29 | 2018-06-29 | Intelligent system for safe transmission of network files |
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| CN108881258B true CN108881258B (en) | 2020-10-20 |
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| CN109992287A (en) * | 2019-04-11 | 2019-07-09 | 苏州浪潮智能科技有限公司 | A kind of firmware upgrade method, system, equipment and medium |
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Effective date of registration: 20230725 Address after: Room 1803, Building A, Xicheng Science and Technology Building, No. 41 Jinsuo Road, High tech Industrial Development Zone, Zhengzhou City, Henan Province, 450000 Patentee after: Henan Xuansong Electronic Technology Co.,Ltd. Address before: 215600 Zhangjiagang Economic Development Zone (high tech entrepreneurship Service Center) Zhangjiagang Hongjia Digital Technology Co.,Ltd. Patentee before: ZHANGJIAGANG HONGJIA DIGITAL TECHNOLOGY Co.,Ltd. |
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