CN102055580A - Method for safely sending and receiving enterprise information in industrial internet and communication equipment - Google Patents
Method for safely sending and receiving enterprise information in industrial internet and communication equipment Download PDFInfo
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- CN102055580A CN102055580A CN2009102017701A CN200910201770A CN102055580A CN 102055580 A CN102055580 A CN 102055580A CN 2009102017701 A CN2009102017701 A CN 2009102017701A CN 200910201770 A CN200910201770 A CN 200910201770A CN 102055580 A CN102055580 A CN 102055580A
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Abstract
The invention discloses a method for safely sending and receiving enterprise information in an industrial internet and communication equipment. In the method, a sending end carries out inequality dynamic partition on files to be sent, each data block comprises a factor of character after partition, and a header file comprises a sorting algorithm; and a receiving end is used to input the factors of character into the sorting algorithm of the header file to obtain the correct sorting of the data blocks after receiving all data blocks and acquiring the factor of character of each data block. Thus, a lawbreaker can not obtain the contents in the data blocks while capturing part of data blocks. In addition, the receiving end compresses the data blocks so as to fasten network transmission speed, reduce occupied network resource, and form primary encryption. Based on the compression, secondary information encryption and channel encryption are respectively performed on the data blocks, so that the security of the information transmission is further improved, thus ensuring safe information transmission between an enterprise headquarter and branches thereof by a public network under the condition of having no special network.
Description
Technical field
The present invention relates to enterprise information security transmission technology in a kind of industry internet.
Background technology
Large enterprise, as reconnoitre and be developed as main large-scale Mining Group with mineral resources, its holding company often is distributed in the whole nation and even all parts of the world.
Because of service needed, the enterprise's sensitive information that comprises information such as production report every day distribution on global, that quantity surpasses into the production scene more than hundred need be transferred to general headquarters.In view of these sensitive informations belong to the enterprise key confidential data, in the transmission of Information process, fail safe there is high requirement.
Because subsidiary may be distributed in global a plurality of country, be subjected to the regulation limitations of internal enterprise resources restriction and country variant, can't set up the internal communication dedicated network voluntarily.Therefore need transmit by public network, prior art has following several mode:
(1) on LAN or broadband internet network, IT mode transfer files ratio is easier to, as adopt SMTP (mail service), HTTP (Web service), FTP modes such as (file transfer services) to transmit information, but this class methods cipher mode is simple, be stolen easily or monitor, can not satisfy the security requirement of enterprise.
(2) adopt conventional art, on the arrowband, also can realize vpn tunneling and file transfer, but outage, packet loss, the error rate are higher, cause repeatedly retransmitting or infinitely retransmit, thereby be difficult to satisfy the requirement of the transmission success rate and the efficiency of transmission aspect of enterprise.
And aforesaid way generally uses conventional industrial communication agreement to carry out the transmission of message file, and conventional industrial communication agreement generally is used for transmitting real-time data, and configuration and use are complicated, are not suitable for information such as transfer files.
And, in case enterprise needs the information transmitted amount bigger, can influence transmission speed, expend time in and Internet resources.
Summary of the invention
The technical problem that the present invention mainly solves provides enterprise information security sending and receiving methods and communication apparatus in a kind of industry internet, makes to need not to set up dedicated network between the branch of enterprise headquarters and various places, can pass through public network safe transmission information.
In order to solve the problems of the technologies described above, the invention provides enterprise information security sending method in a kind of industry internet, connect by public network between transmitting terminal and the receiving terminal, comprise following steps:
The A transmitting terminal carries out dynamic partition to sent data, cuts apart at least two data block size differences in the data block that obtains;
B comprises a factor of character in each data block, comprise number and a sort algorithm of cutting apart the data block that obtains in header file;
C sends to receiving terminal with described data block and the described header file that respectively comprises factor of character by public network.
As improvement of the technical scheme, before described step C, also comprise following steps:
To described header file and cut apart each data block that obtains and compress;
Header file and the data block of the information encryption that adopts agreement after to described compression carried out superencipher;
Among the described step C, adopt proprietary passage encryption technology, header file behind the described superencipher and data block are sent to described receiving terminal by public network.
As improvement of the technical scheme, before described steps A, also comprise following steps:
Described data to be sent are compressed;
The data of the information encryption that adopts agreement after to described compression are carried out superencipher;
In the described steps A, the data behind the described superencipher are carried out dynamic partition, cut apart at least two data block size differences in the data block that obtains;
Among the described step C, adopt proprietary passage encryption technology, header file behind the described superencipher and data block are sent to described receiving terminal by public network.
As improvement of the technical scheme, described enterprise comprises at least two internal networks, and described transmitting terminal and described receiving terminal lay respectively at the different internal networks of enterprise, and described transmitting terminal obtains data to be sent from the internal network at its place.
As improvement of the technical scheme, described to data compress and the step cut apart before, also comprise following steps:
Described transmitting terminal receives the operation requests of customer requirements transfer files;
Described operation requests is verified, if, then carry out the described step of compressing and cutting apart to sent data by checking.
The present invention also provides enterprise information security method of reseptance in a kind of industry internet, and transmitting terminal is connected by public network with receiving terminal, comprises following steps:
The described receiving terminal of A receives header file and data block from transmitting terminal by public network, and the number that indicates in the number of the data block of reception and the header file is identical;
B obtains the factor of character in described each data block, and all factor of character are imported sort algorithm in the described header file, obtains the correct ordering of described each data block;
C makes up described data block according to described correct ordering, obtains the data that described transmitting terminal sends.
As improvement of the technical scheme, in the described steps A, described receiving terminal passage encryption technology according to a preconcerted arrangement is from the data of described public network reception from transmitting terminal;
Adopt the information encryption of agreement that data block and the header file that receives is decrypted;
Data block and header file decompress(ion) to after the deciphering obtain original data block and header file;
Among the described step B, from the data block behind the described decompress(ion), obtain factor of character.
As improvement of the technical scheme, in the described steps A, described receiving terminal passage encryption technology according to a preconcerted arrangement is from data block and the header file of described public network reception from transmitting terminal;
Among the described step C, further comprise following steps:
According to described correct ordering, make up described data block;
Adopt the information encryption of agreement that the data block after making up is decrypted;
Data after the described deciphering are decompressed, obtain the data that described transmitting terminal sends.
The present invention also provides a kind of communication apparatus, comprises:
Cut apart module, be used for carrying out dynamic partition to sent data, cut apart at least two data block size differences in the data block that obtains, in each data block, comprise a factor of character, in header file, comprise number and a sort algorithm of cutting apart the data block that obtains;
Sending module sends to receiving terminal with described data block and the described header file that respectively comprises factor of character by public network.
As improvement of the technical scheme, also comprise:
Compression module is used for described header file and cuts apart each data block that obtains compressing;
Encrypting module, the information encryption that is used to adopt agreement header file and the data block after to described compression carried out superencipher;
Described sending module adopts proprietary passage encryption technology, and header file behind the described superencipher and data block are sent to described receiving terminal by public network.
As improvement of the technical scheme, also comprise:
Compression module is used for described data to be sent are compressed;
Encrypting module, the information encryption that is used to the to adopt agreement data after to described compression are carried out superencipher;
The described data of module after to described superencipher of cutting apart are carried out dynamic partition, cut apart at least two data block size differences in the data block that obtains;
Described sending module adopts proprietary passage encryption technology, and header file behind the described superencipher and data block are sent to described receiving terminal by public network.
The present invention also provides a kind of communication apparatus, comprises:
Receiver module is used for receiving header file and data block from transmitting terminal by public network, and the number that indicates in the number of the data block of reception and the header file is identical;
Knockdown block, be used for obtaining the factor of character of described each data block, all factor of character are imported sort algorithm in the described header file, obtain the correct ordering of described each data block, make up described data block according to described correct ordering, obtain the data that described transmitting terminal sends.
As improvement of the technical scheme, described receiver module passage encryption technology according to a preconcerted arrangement is from the data of described public network reception from transmitting terminal;
Described communication apparatus also comprises:
Deciphering module is used to adopt the information encryption of agreement that data block and the header file that receives is decrypted;
Decompression module is used for data block and header file decompress(ion) after the deciphering are obtained original data block and header file.
Described Knockdown block obtains described factor of character from the data block behind the described decompress(ion).
Embodiment of the present invention compared with prior art, the main distinction and effect thereof are: transmitting terminal carries out the inequality dynamic partition with file to be sent, comprises a factor of character in each data block after cutting apart, and comprises a sort algorithm in header file; Receiving terminal is only received all data blocks, and after obtaining the factor of character of each data block, sort algorithm with all factor of character input head files, just can obtain the correct ordering of data block, even the lawless person is truncated to the partial data piece, also can't obtain wherein content, make the fail safe of message transmission further improve, guarantee do not setting up between the branch of enterprise headquarters and various places under the situation of dedicated network, also can pass through public network safe transmission information.
Further, transmitting terminal can also compress data block, can speed network transfer speeds by data compression, reduces to take Internet resources, and forms once encryption.Transmitting terminal can also carry out the secondary information encryption respectively on this basis and passage is encrypted, with the fail safe of further raising information by public network transmissions.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is an enterprise information security method of sending and receiving flow chart in the industry internet of first embodiment of the invention;
Fig. 2 is an enterprise information security method of sending and receiving flow chart in the industry internet of second embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described in further detail below in conjunction with accompanying drawing.
First embodiment of the invention relates to enterprise information security method of sending and receiving in a kind of industry internet, for convenience of description, present embodiment is that example describes with the mining site, and the mining site system comprises the mining site substation (subsidiary) that is distributed in the whole nation and even the whole world, and mining site general headquarters.Transmitting terminal in the present embodiment is the mining site substation, and receiving terminal is mining site general headquarters.Also can be reverse situation in actual applications.
Mining site substation end comprises a client software and a communication apparatus, and client software is mainly used in accepts user operation (normally select will transmit file), and connects by Ethernet, is established to the communication of communication apparatus; Communication apparatus is used to realize the safe transmission of data from the mining site substation to master station.General headquarters' end comprises a communication apparatus equally, is used to finish the operations such as receiving and deciphering of data.
In step 101, transmitting terminal (being the communication equipment of mining site substation) compresses to sent data file.By adopting exclusive data (file) compression and cutting techniques, improve communication efficiency, and realize the encryption function first time (low-intensity encryption) connection object.
In step 102, transmitting terminal adopts the information encryption of agreement, as DES (data encryption standard), AES (Advanced Encryption Standard), rivest, shamir, adelman RSA etc., superencipher is carried out in compression and divided data.
In step 103, the data of transmitting terminal after to superencipher are carried out dynamic partition, and cut apart the data block size that obtains and have nothing in common with each other, and, in each data block, comprise a factor of character, in header file, comprise a sort algorithm.Receiving terminal can obtain the correct ordering of data block after the factor of character of all data blocks is imported this sort algorithm.This sort algorithm can be an any particular algorithms, comprises simply getting surplus algorithm, and be integer as factor of character, sort algorithm sorts after factor of character is got remainder to X from big to small, and the order that obtains is the correct ordering of data block.Perhaps, in order further to improve the fail safe and the complexity of factor of character and algorithm, also can utilize MD5 (Message-Digest Algorithm 5, Message-Digest Algorithm 5) to form sort algorithm.
In step 104, transmitting terminal adopts proprietary passage encryption technology, and header file behind the superencipher and data block are sent to receiving terminal by public network.The public network here can be the communication network that effective arbitrarily baud rate is higher than 300～600bps, comprises various arrowbands or broadband connections.If communication network speed is lower than 56kbps or does not support IP stack, then abandon the passage ciphering process automatically.
By respectively data file and transmission channel being encrypted, guarantee to be protected by the public network transmissions safety of files setting up voluntarily under the situation of internal communication dedicated network; By file waiting for transmission being compressed and cutting apart, can reduce the data volume that on network, sends, improve transmission speed, reduce the transmission time.
In step 105, the communication apparatus passage encryption technology according to a preconcerted arrangement of general headquarters ends receives header file and data block from transmitting terminal from public network, and the number that indicates in the number of the data block of reception and the header file is identical.
In step 106, communication apparatus obtains factor of character from each data block of receiving, and the sort algorithm with in all factor of character input head files obtains the correct ordering of each data block, and according to these correct these data blocks of ordering combination.
In step 107, communication apparatus adopts the information encryption of agreement that the data block after making up is decrypted.
In step 108, communication apparatus carries out decompress(ion) to the data after deciphering, and obtains the initial data from transmitting terminal.
Because transmitting terminal carries out the inequality dynamic partition with file to be sent, comprises a factor of character in each data block after cutting apart, and comprises a sort algorithm in header file; Receiving terminal is only received all data blocks, and after obtaining the factor of character of each data block, sort algorithm with all factor of character input head files, just can obtain the correct ordering of data block, even the lawless person is truncated to the partial data piece, also can't obtain wherein content, make the fail safe of message transmission further improve, guarantee do not setting up between the branch of enterprise headquarters and various places under the situation of dedicated network, also can pass through public network safe transmission information.
Further, transmitting terminal can also compress data block, can speed network transfer speeds by data compression, reduces to take Internet resources, and forms once encryption.Transmitting terminal can also carry out the secondary information encryption respectively on this basis and passage is encrypted, with the fail safe of further raising information by public network transmissions.
In the present embodiment, can preset file permission, so that provide different files for the user of different rights on general headquarters' internal network; In fact, also can be according to real needs, provide file service in general headquarters, so that personnel check classified papers at any time outside based on Internet.And the incident of log file reception and user file request is understood the classified papers whereabouts constantly.
Second embodiment of the invention relates to enterprise information security method of sending and receiving in a kind of industry internet equally, roughly the same with first execution mode, its difference is, in the first embodiment, transmitting terminal compresses and superencipher to sent data earlier, and the data behind the superencipher are cut apart; And in the present embodiment, transmitting terminal is cut apart to sent data earlier, to the divided data piece with header file compresses and superencipher; Receiving terminal is after receiving data block and header file, same earlier it being decrypted and decompress(ion), obtain original data block and header file, obtain factor of character the data block behind decompress(ion), the factor of character of all data blocks is input in the sort algorithm of header file, obtain correct ordering, according to these correct these data blocks of ordering combination, as shown in Figure 2.
Third embodiment of the invention relates to a kind of communication apparatus, comprise: cut apart module, be used for carrying out dynamic partition to sent data, cut apart at least two data block size differences in the data block that obtains, in each data block, comprise a factor of character, in header file, comprise number and a sort algorithm of cutting apart the data block that obtains; Sending module sends to receiving terminal with data block and the header file that respectively comprises factor of character by public network.
This communication apparatus also comprises compression module and encrypting module.
Wherein, compression module is used for header file and cuts apart each data block that obtains compressing; Encrypting module is used to adopt the information encryption of agreement that header file and data block after compressing are carried out superencipher; Sending module adopts proprietary passage encryption technology, and header file behind the superencipher and data block are sent to receiving terminal by public network.
Perhaps, compression module is used for compressing to sent data; Encrypting module is used to adopt the information encryption of agreement that the data after compressing are carried out superencipher; Cut apart the data of module after and carry out dynamic partition, cut apart at least two data block size differences in the data block that obtains superencipher; Sending module adopts proprietary passage encryption technology, and header file behind the superencipher and data block are sent to receiving terminal by public network.
Because transmitting terminal carries out the inequality dynamic partition with file to be sent, comprises a factor of character in each data block after cutting apart, and comprises a sort algorithm in header file; Receiving terminal is only received all data blocks, and after obtaining the factor of character of each data block, sort algorithm with all factor of character input head files, just can obtain the correct ordering of data block, even the lawless person is truncated to the partial data piece, also can't obtain wherein content, make the fail safe of message transmission further improve, guarantee do not setting up between the branch of enterprise headquarters and various places under the situation of dedicated network, also can pass through public network safe transmission information.
Further, transmitting terminal can also compress data block, can speed network transfer speeds by data compression, reduces to take Internet resources, and forms once encryption.Transmitting terminal can also carry out the secondary information encryption respectively on this basis and passage is encrypted, with the fail safe of further raising information by public network transmissions.
The information encryption of arranging in the present embodiment can comprise: DES Cipher, Advanced Encryption Standard AES, rivest, shamir, adelman RSA etc.Proprietary passage encryption technology can be based on the proprietary passage encryption technology of IPsec agreement etc.
Four embodiment of the invention relates to a kind of communication apparatus, comprise: receiver module, the passage encryption technology that is used for according to a preconcerted arrangement receives data block and header file from transmitting terminal from described public network, and the number that indicates in the number of the data block of reception and the header file is identical; Knockdown block, be used for obtaining the factor of character of described each data block, all factor of character are imported sort algorithm in the described header file, obtain the correct ordering of described each data block, make up described data block according to described correct ordering, obtain the data that described transmitting terminal sends.
This communication apparatus also comprises deciphering module and decompression module:
Deciphering module is used to adopt the information encryption of agreement that data block and the header file that receives is decrypted; Decompression module is used for data block and header file decompress(ion) after the deciphering are obtained original data block and header file.This Knockdown block obtains described factor of character from the data block behind the described decompress(ion).
Perhaps, deciphering module is used to adopt the information encryption of agreement that the data block after making up is decrypted; Decompression module is used for the data after the described deciphering are decompressed, and obtains the initial data that described transmitting terminal sends.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (14)
1. enterprise information security sending method in the industry internet connects by public network between transmitting terminal and the receiving terminal, it is characterized in that, comprises following steps:
The A transmitting terminal carries out dynamic partition to sent data, cuts apart at least two data block size differences in the data block that obtains;
B comprises a factor of character in each data block, comprise number and a sort algorithm of cutting apart the data block that obtains in header file;
C sends to receiving terminal with described data block and the described header file that respectively comprises factor of character by public network.
2. enterprise information security sending method in the industry internet according to claim 1 is characterized in that, before described step C, also comprises following steps:
To described header file and cut apart each data block that obtains and compress;
Header file and the data block of the information encryption that adopts agreement after to described compression carried out superencipher;
Among the described step C, adopt proprietary passage encryption technology, header file behind the described superencipher and data block are sent to described receiving terminal by public network.
3. enterprise information security sending method in the industry internet according to claim 1 is characterized in that, before described steps A, also comprises following steps:
Described data to be sent are compressed;
The data of the information encryption that adopts agreement after to described compression are carried out superencipher;
In the described steps A, the data behind the described superencipher are carried out dynamic partition, cut apart at least two data block size differences in the data block that obtains;
Among the described step C, adopt proprietary passage encryption technology, header file behind the described superencipher and data block are sent to described receiving terminal by public network.
4. according to enterprise information security transmission method in claim 2 or the 3 described industry internets, it is characterized in that, described enterprise comprises at least two internal networks, described transmitting terminal and described receiving terminal lay respectively at the different internal networks of enterprise, and described transmitting terminal obtains data to be sent from the internal network at its place.
5. according to enterprise information security transmission method in claim 2 or the 3 described industry internets, it is characterized in that, described to data compress and the step cut apart before, also comprise following steps:
Described transmitting terminal receives the operation requests of customer requirements transfer files;
Described operation requests is verified, if, then carry out the described step of compressing and cutting apart to sent data by checking.
6. enterprise information security method of reseptance in the industry internet connects by public network between transmitting terminal and the receiving terminal, it is characterized in that, comprises following steps:
The described receiving terminal of A receives header file and data block from transmitting terminal by public network, and the number that indicates in the number of the data block of reception and the header file is identical;
B obtains the factor of character in described each data block, and all factor of character are imported sort algorithm in the described header file, obtains the correct ordering of described each data block;
C makes up described data block according to described correct ordering, obtains the data that described transmitting terminal sends.
7. enterprise information security method of reseptance in the industry internet according to claim 6 is characterized in that, in the described steps A, described receiving terminal passage encryption technology according to a preconcerted arrangement is from the data of described public network reception from transmitting terminal;
Adopt the information encryption of agreement that data block and the header file that receives is decrypted;
Data block and header file decompress(ion) to after the deciphering obtain original data block and header file;
Among the described step B, from the data block behind the described decompress(ion), obtain factor of character.
8. enterprise information security method of reseptance in the industry internet according to claim 6 is characterized in that, in the described steps A, described receiving terminal passage encryption technology according to a preconcerted arrangement is from data block and the header file of described public network reception from transmitting terminal;
Among the described step C, further comprise following steps:
According to described correct ordering, make up described data block;
Adopt the information encryption of agreement that the data block after making up is decrypted;
Data after the described deciphering are decompressed, obtain the data that described transmitting terminal sends.
9. a communication apparatus is characterized in that, comprises:
Cut apart module, be used for carrying out dynamic partition to sent data, cut apart at least two data block size differences in the data block that obtains, in each data block, comprise a factor of character, in header file, comprise number and a sort algorithm of cutting apart the data block that obtains;
Sending module sends to receiving terminal with described data block and the described header file that respectively comprises factor of character by public network.
10. communication apparatus according to claim 9 is characterized in that, also comprises:
Compression module is used for described header file and cuts apart each data block that obtains compressing;
Encrypting module, the information encryption that is used to adopt agreement header file and the data block after to described compression carried out superencipher;
Described sending module adopts proprietary passage encryption technology, and header file behind the described superencipher and data block are sent to described receiving terminal by public network.
11. communication apparatus according to claim 9 is characterized in that, also comprises:
Compression module is used for described data to be sent are compressed;
Encrypting module, the information encryption that is used to the to adopt agreement data after to described compression are carried out superencipher;
The described data of module after to described superencipher of cutting apart are carried out dynamic partition, cut apart at least two data block size differences in the data block that obtains;
Described sending module adopts proprietary passage encryption technology, and header file behind the described superencipher and data block are sent to described receiving terminal by public network.
12. a communication apparatus is characterized in that, comprises:
Receiver module is used for receiving header file and data block from transmitting terminal by public network, and the number that indicates in the number of the data block of reception and the header file is identical;
Knockdown block, be used for obtaining the factor of character of described each data block, all factor of character are imported sort algorithm in the described header file, obtain the correct ordering of described each data block, make up described data block according to described correct ordering, obtain the data that described transmitting terminal sends.
13. communication apparatus according to claim 12 is characterized in that, described receiver module passage encryption technology according to a preconcerted arrangement is from header file and the data block of described public network reception from transmitting terminal;
Described communication apparatus also comprises:
Deciphering module is used to adopt the information encryption of agreement that data block and the header file that receives is decrypted;
Decompression module is used for data block and header file decompress(ion) after the deciphering are obtained original data block and header file.
Described Knockdown block obtains described factor of character from the data block behind the described decompress(ion).
14. communication apparatus according to claim 12 is characterized in that, described receiver module passage encryption technology according to a preconcerted arrangement is from header file and the data block of described public network reception from transmitting terminal;
Described communication apparatus also comprises:
Deciphering module is used to adopt the information encryption of agreement that the data block after making up is decrypted;
Decompression module is used for the data after the described deciphering are decompressed, and obtains the initial data that described transmitting terminal sends.
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| CN2009102017701A CN102055580A (en) | 2009-11-06 | 2009-11-06 | Method for safely sending and receiving enterprise information in industrial internet and communication equipment |
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| CN2009102017701A CN102055580A (en) | 2009-11-06 | 2009-11-06 | Method for safely sending and receiving enterprise information in industrial internet and communication equipment |
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| CN102355474A (en) * | 2011-06-28 | 2012-02-15 | 无锡永中软件有限公司 | Document sending method, document receiving method and document transmitting method |
| CN104065624A (en) * | 2013-03-21 | 2014-09-24 | 北京百度网讯科技有限公司 | Security verification method, system and apparatus of request message |
| CN104182697A (en) * | 2014-08-15 | 2014-12-03 | 小米科技有限责任公司 | File encryption method and device |
| JP2017005682A (en) * | 2016-02-16 | 2017-01-05 | 国立大学法人京都大学 | Data processing device, data transmission method, computer program and data server |
| CN107592636A (en) * | 2017-08-17 | 2018-01-16 | 深圳市诚壹科技有限公司 | A kind of method of processing information, terminal and server |
| CN109525589A (en) * | 2018-12-07 | 2019-03-26 | 象翌微链科技发展有限公司 | A kind of optimization method and system based on high speed document transmission ciphered compressed |
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| CN113965382A (en) * | 2021-10-21 | 2022-01-21 | 国网安徽省电力有限公司物资分公司 | Tamper-proof method for bidding supervision list data encryption algorithm |
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| CN102355474A (en) * | 2011-06-28 | 2012-02-15 | 无锡永中软件有限公司 | Document sending method, document receiving method and document transmitting method |
| CN104065624B (en) * | 2013-03-21 | 2018-03-06 | 北京百度网讯科技有限公司 | Safe checking method, system and the device of request message |
| CN104065624A (en) * | 2013-03-21 | 2014-09-24 | 北京百度网讯科技有限公司 | Security verification method, system and apparatus of request message |
| CN104182697A (en) * | 2014-08-15 | 2014-12-03 | 小米科技有限责任公司 | File encryption method and device |
| CN104182697B (en) * | 2014-08-15 | 2017-07-28 | 小米科技有限责任公司 | File encrypting method and device |
| JP2017005682A (en) * | 2016-02-16 | 2017-01-05 | 国立大学法人京都大学 | Data processing device, data transmission method, computer program and data server |
| CN107592636A (en) * | 2017-08-17 | 2018-01-16 | 深圳市诚壹科技有限公司 | A kind of method of processing information, terminal and server |
| CN109525589A (en) * | 2018-12-07 | 2019-03-26 | 象翌微链科技发展有限公司 | A kind of optimization method and system based on high speed document transmission ciphered compressed |
| CN111556496A (en) * | 2020-04-30 | 2020-08-18 | 航天宏康智能科技(北京)有限公司 | Wireless communication method and transceiver |
| CN113254974A (en) * | 2021-06-11 | 2021-08-13 | 山东广鹏信息科技有限公司 | Information security encryption method and device |
| CN113254974B (en) * | 2021-06-11 | 2022-07-08 | 山东广鹏信息科技有限公司 | Information security encryption method and device |
| CN113965382A (en) * | 2021-10-21 | 2022-01-21 | 国网安徽省电力有限公司物资分公司 | Tamper-proof method for bidding supervision list data encryption algorithm |
| CN114363320A (en) * | 2021-12-30 | 2022-04-15 | 格美安(北京)信息技术有限公司 | Cross-network data returning method, storage medium and system |
| CN116471491A (en) * | 2023-04-25 | 2023-07-21 | 北京拙河科技有限公司 | Method and device for decoding video stream of optical camera |
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