CN101345761A - Private data transmission method and system - Google Patents
Private data transmission method and system Download PDFInfo
- Publication number
- CN101345761A CN101345761A CNA2008101419712A CN200810141971A CN101345761A CN 101345761 A CN101345761 A CN 101345761A CN A2008101419712 A CNA2008101419712 A CN A2008101419712A CN 200810141971 A CN200810141971 A CN 200810141971A CN 101345761 A CN101345761 A CN 101345761A
- Authority
- CN
- China
- Prior art keywords
- data
- private data
- key
- server
- cryptographic algorithm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention is applied to the field of monitoring, and provides a private data transmission method and system. The method includes the following steps: the data sending terminal performs encrypt packing to the private data, and transmits a data packet bearing private data to a data receiving terminal, wherein the data packet includes an encryption algorithm ID encrypting the private data and cipher key ID; the data receiving terminal resolves the data packet bearing private data, acquires decipher cipher key and corresponding decipher method from the server according to the encryption algorithm ID and cipher key ID carried by the data packet, to decipher the private data. In the present invention, the existing mature encryption algorithm is used to encrypt the private data and a RTP packet is used to transmit the private data, the data receiving terminal acquires decipher cipher key and decipher method from the server according to the encrypt method ID and cipher key ID carried by the RTP packet, plays back the data, thereby guaranteeing the safe transmission of private data and simultaneous simple operation.
Description
Technical field
The invention belongs to the monitoring field, relate in particular to a kind of transmission method and system of private data.
Background technology
In the network monitoring field, some monitor data is a secret, and data flow transmitted prevents to be intercepted and captured playback, therefore need carry out traffic encryption.
Practices well is to adopt a kind of secret data stream format, and such as self-defining data flow packaging method, but such being easy to be cracked, and is unsafe; Also can adopt Security Real Time Protocol (SecureReal-time Transport Protocol, SRTP) carry out traffic encryption, but the key management of SRTP and distribution more complicated, the key of SRTP is by encrypting context transfer, also be by IP (InternetProtocol) network delivery, obtain key by fixing algorithm then, algorithm is disclosed, initial key transmits by IP network, fail safe has problem, need 6 keys to encrypt context at most, cause management, transmit trouble, and in the SRTP system if increase a kind of new encryption method, need redefine RTP (Real-time Transport Protocol, RTP) content of Context, autgmentability is relatively poor.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of transmission method of private data, is intended to solve the management dangerous or key to the encryption of private data time of the transmission of private data in the prior art and the problem of distribution more complicated.
The embodiment of the invention is achieved in that a kind of transmission method of private data, and described method comprises the steps:
Data sending terminal is encrypted packing to private data, and sends the packet that carries private data to data receiver, and described packet comprises cryptographic algorithm ID and the key ID that described private data is encrypted;
Data receiver is resolved the packet of the described private data of carrying, obtains decruption key and corresponding decryption method is decrypted described private data according to the cryptographic algorithm ID of described packet carrying and key ID from server.
Another purpose of the embodiment of the invention is to provide a kind of transmission system of private data, comprises data sending terminal, data receiver and server, and described system also comprises:
Private data is encrypted packetization module, places data sending terminal, is used for private data is encrypted packing;
The private data sending module, place data sending terminal, be used for sending the packet that described private data is encrypted the described private data of carrying after packetization module is encrypted packing to data receiver, described packet comprises cryptographic algorithm ID and the key ID that described private data is encrypted; And
The private data deciphering module places data receiver; Be used to resolve the packet of the described private data of carrying that described private data sending module sends, obtain decruption key and corresponding decryption method is decrypted described private data from server according to the cryptographic algorithm ID of described packet carrying and key ID.
In the present invention, cryptographic algorithm by existing maturation is encrypted to private data, and utilize the RTP bag to transmit this private data, data receiver obtains decruption key and decryption method according to the encryption method ID and the key ID of the carrying of RTP bag from server, data are carried out playback, guaranteed the safe transmission of private data, simultaneously simple to operate, brought facility to the user.
Description of drawings
Fig. 1 is the transmission method flow chart of the private data that provides of the embodiment of the invention;
Fig. 2 is the transmission system block diagram of the private data that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In embodiments of the present invention, cryptographic algorithm by existing maturation is encrypted to private data, and utilize the RTP bag to transmit this private data, data receiver obtains decruption key and decryption method according to the encryption method ID and the key ID of the carrying of RTP bag from server, data are carried out playback, guaranteed the safe transmission of private data, simultaneously simple to operate, brought facility to the user.
Fig. 1 shows the transmission method realization flow of the private data that the embodiment of the invention provides, and its detailed step is as follows:
1 data sending terminal transmitting apparatus ID and cryptographic algorithm kind are carried out the data registration to server.
In embodiments of the present invention, data sending terminal sends to server with self device id and the cryptographic algorithm kind that can support of equipment respectively.
2 servers generate key ID and corresponding key according to the device id that receives.
3 servers generate cryptographic algorithm ID according to the cryptographic algorithm kind that receives.
In embodiments of the present invention, server receives after the log-on data of data sending terminal, kind according to cryptographic algorithm generates the cryptographic algorithm tabulation corresponding with cryptographic algorithm ID, DES algorithm correspondence 100 for example, aes algorithm correspondence 200 etc., generated corresponding cryptographic algorithm ID if this algorithm has been registered before this, and then do not need to regenerate.
4 data sending terminals send verification msg to server, and request connects with server.
5 servers connect with data sending terminal according to verification msg, and generate a USB KEY for data sending terminal.
In embodiments of the present invention, USB KEY comprise key ID, with the corresponding key of key ID, encryption method and with the corresponding encryption method ID of encryption method.
6 data sending terminals are encrypted private data according to the encryption method of USB KEY storage.
7 private datas after will encrypting load and are encapsulated into packet, and wherein this packet is the RTP bag.
In embodiments of the present invention, can adopt multiple packaged type to the packing of private data, for example can be that RTP seals dress, transport stream (TS) encapsulation or other self-defining encapsulation packing manner, in this embodiment, is that example describes with the RTP bag.
The header field of 8 expansion RTP bags, wherein, cryptographic algorithm ID and key ID that the header field carrying of this RTP bag is encrypted private data.
In embodiments of the present invention, data sending terminal will be loaded on the extended field of RTP packet header pairing cryptographic algorithm ID of the cryptographic algorithm that private data is encrypted and key ID.
9 data sending terminals wrap to the RTP that data receiver sends the carrying private data, and wherein, packet also comprises cryptographic algorithm ID and the key ID that data are encrypted.
10 data receivers send verification msg to server, connect with server.
The RTP bag of the carrying private data that 11 data receiver resolution data transmitting terminals send obtains the cryptographic algorithm ID and the key ID of the carrying of RTP bag.
12 send cryptographic algorithm ID and the key ID obtained arrives server, obtains decruption key and corresponding decryption method.
13 servers will send to data receiver with the corresponding cryptographic algorithm of the cryptographic algorithm ID that data receiver sends and with the corresponding key of key ID.
14 data receivers obtain and the corresponding decipherment algorithm of cryptographic algorithm according to the corresponding cryptographic algorithm of cryptographic algorithm ID of server transmission and with the corresponding key of key ID, carry out the private data deciphering, realize the private data playback.
In embodiments of the present invention, the transmission of all data between data sending terminal, data receiver and server reception all is to realize by wired or wireless IP network.
In embodiments of the present invention, in the top flow process, server transmits key ID, realizes by USB KEY with the corresponding key of key ID, encryption method and with the corresponding encryption method ID of encryption method to data sending terminal, in this embodiment, USB KEY is changed to do be that the SD card also is fine; As long as can the safe transmission key ID, can reach the purpose of the embodiment of the invention with the corresponding key of key ID, encryption method and with the corresponding encryption method ID of encryption method, not in order to restriction the present invention.
In embodiments of the present invention, what this embodiment adopted is that the packet that carries private data directly is transferred to data receiver from data sending terminal, can certainly adopt packet temporary cache that data sending terminal will carry private data at server end, data receiver checking by after obtain the mode of the packet that carries private data again from server.
Fig. 2 shows the block diagram of the transmission system of the private data that the embodiment of the invention provides, and for convenience of explanation, only shows the relevant part of the embodiment of the invention among the figure.
The transmission system of private data comprises data sending terminal, data receiver and server.
Registering modules 11 transmitting apparatus ID and cryptographic algorithm kind are carried out the data registration to server, cryptographic algorithm ID generation module 12 generates corresponding cryptographic algorithm ID according to the cryptographic algorithm kind that Registering modules 11 sends, key production module 13 generates corresponding key according to the device id that Registering modules 11 sends, and key ID generation module 14 generates corresponding key ID according to the device id of Registering modules 11 transmissions and the key of key production module 13 generations.
When data sending terminal sends verification msg to server, when request connects with described server, USBKEY generation module 15 generates a USB KEY, wherein this USB KEY comprise key ID, with the corresponding key of key ID, encryption method and the encryption method ID corresponding with encryption method.
Private data is encrypted 16 pairs of private datas of packetization module and is encrypted packing.
Private data sending module 17 sends the packet that private data is encrypted the carrying private data after packetization module is encrypted packing to data receiver, and this packet also comprises cryptographic algorithm ID and the key ID that private data is encrypted.
After server and data receiver connect, private data deciphering module 19 is resolved the packet of the carrying private data that the private data sending modules send, and obtains decruption key and corresponding decryption method is decrypted private data according to the cryptographic algorithm ID of packet carrying and key ID from server.
As one embodiment of the present of invention, encrypting module 161 utilizes the cryptographic algorithm of data sending terminal support that private data is encrypted; Private data after load-on module 162 will be encrypted is loaded into the RTP bag; The header field of expansion carrier module 163 expansion RTP bags, the header field carrying cryptographic algorithm ID and the key ID of RTP bag.
In embodiments of the present invention, cryptographic algorithm by existing maturation is encrypted to private data, and utilize the RTP bag to transmit this private data, data receiver obtains decruption key and decryption method according to the encryption method ID and the key ID of the carrying of RTP bag from server, data are carried out playback, guaranteed the safe transmission of private data, simultaneously simple to operate, brought facility to the user.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be in being stored in a computer read/write memory medium, described storage medium is as ROM/RAM, disk, CD etc.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of transmission method of private data is characterized in that, described method comprises the steps:
Data sending terminal is encrypted packing to private data, and sends the packet that carries private data to data receiver, and described packet comprises cryptographic algorithm ID and the key ID that described private data is encrypted;
Data receiver is resolved the packet of the described private data of carrying, obtains decruption key and corresponding decryption method is decrypted described private data according to the cryptographic algorithm ID of described packet carrying and key ID from server.
2, the transmission method of private data as claimed in claim 1, it is characterized in that, described data sending terminal is encrypted packing to private data, and sending the packet of carrying private data to data receiver, described packet also comprises the steps: before comprising the step of cryptographic algorithm ID that described private data is encrypted and key ID
Described data sending terminal transmitting apparatus ID and cryptographic algorithm kind are carried out the data registration to described server;
Described server generates key ID and corresponding key according to described device id;
Described server generates corresponding cryptographic algorithm ID according to described cryptographic algorithm kind.
3, the transmission method of private data as claimed in claim 1, it is characterized in that, described data sending terminal is encrypted packing to private data, and sending the packet of carrying private data to data receiver, described packet also comprises the steps: before comprising the step of cryptographic algorithm ID that described private data is encrypted and key ID
When described data sending terminal sends verification msg to described server, when request connects with described server, described server is that described data sending terminal generates a USB KEY, described USB KEY comprise key ID, with the corresponding key of described key ID, encryption method and with the corresponding encryption method ID of described encryption method.
4, the transmission method of private data as claimed in claim 1 is characterized in that, the step that described data sending terminal is encrypted packing to private data is specially:
Utilize the cryptographic algorithm of described data sending terminal support that private data is encrypted;
Private data after encrypting is loaded into the RTP bag;
Expand the header field of described RTP bag, the header field of described RTP bag is carried described cryptographic algorithm ID and key ID.
5, the transmission method of private data as claimed in claim 1, it is characterized in that, described data sending terminal is encrypted packing to private data, and send the packet of carrying private data to data receiver, described packet comprises after the step of cryptographic algorithm ID that described private data is encrypted and key ID, data receiver is resolved the packet of the described private data of carrying, also comprises the steps: before server obtains the step that decruption key and corresponding decryption method be decrypted described private data according to the cryptographic algorithm ID of described packet carrying and key ID
Described data receiver sends verification msg to described server, and request connects with described server.
6, a kind of transmission system of private data comprises data sending terminal, data receiver and server, it is characterized in that, described system also comprises:
Private data is encrypted packetization module, places data sending terminal, is used for private data is encrypted packing;
The private data sending module, place data sending terminal, be used for sending the packet that described private data is encrypted the described private data of carrying after packetization module is encrypted packing to data receiver, described packet comprises cryptographic algorithm ID and the key ID that described private data is encrypted; And
The private data deciphering module places data receiver; Be used to resolve the packet of the described private data of carrying that described private data sending module sends, obtain decruption key and corresponding decryption method is decrypted described private data from server according to the cryptographic algorithm ID of described packet carrying and key ID.
7, the transmission system of private data as claimed in claim 6 is characterized in that, described system also comprises:
Registering modules places data sending terminal, is used for transmitting apparatus ID and cryptographic algorithm kind and carries out the data registration to server;
Cryptographic algorithm ID generation module places server, is used for generating corresponding cryptographic algorithm ID according to the cryptographic algorithm kind that described Registering modules sends;
Key production module places server, is used for generating corresponding key according to the device id that described Registering modules sends; And
The key ID generation module places server, is used for generating corresponding key ID according to the key of described device id and the generation of described key production module.
8, the transmission system of private data as claimed in claim 6 is characterized in that, described system also comprises:
USB KEY generation module, place server, be used for sending verification msg to described server when described data sending terminal, when request connects with described server, generate a USB KEY, described USB KEY comprise key ID, with the corresponding key of described key ID, encryption method and the encryption method ID corresponding with described encryption method.
9, the transmission system of private data as claimed in claim 6 is characterized in that, described private data is encrypted packetization module and specifically comprised:
Encrypting module is used to utilize the cryptographic algorithm of described data sending terminal support that private data is encrypted;
Load-on module is used for the private data after encrypting is loaded into the RTP bag; And
The expansion carrier module is used to expand the header field that described RTP wraps, and the header field of described RTP bag is carried described cryptographic algorithm ID and key ID.
10, the transmission system of private data as claimed in claim 6 is characterized in that, described system also comprises:
Authentication module places data receiver, is used for sending verification msg to described server, and request connects with described server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101419712A CN101345761A (en) | 2008-08-20 | 2008-08-20 | Private data transmission method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101419712A CN101345761A (en) | 2008-08-20 | 2008-08-20 | Private data transmission method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101345761A true CN101345761A (en) | 2009-01-14 |
Family
ID=40247645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101419712A Pending CN101345761A (en) | 2008-08-20 | 2008-08-20 | Private data transmission method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101345761A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807997A (en) * | 2010-04-28 | 2010-08-18 | 中国工商银行股份有限公司 | Device and method for generating transmission key |
| CN102582536A (en) * | 2010-12-17 | 2012-07-18 | Nxp股份有限公司 | Pairing of angle sensor and electronic control unit |
| CN103001763A (en) * | 2012-11-23 | 2013-03-27 | 山东电力集团公司 | Encryption method for maintenance of power distribution terminals |
| CN104159320A (en) * | 2013-05-15 | 2014-11-19 | 上海联影医疗科技有限公司 | Data exchange method of local heterogeneous network |
| CN105323712A (en) * | 2015-12-04 | 2016-02-10 | 上海斐讯数据通信技术有限公司 | Bluetooth equipment automatic registering method |
| CN105471831A (en) * | 2014-09-15 | 2016-04-06 | 杭州海康威视数字技术股份有限公司 | Method and device for encrypting real-time transport protocol (RTP) packet |
| CN106851339A (en) * | 2017-01-03 | 2017-06-13 | 青岛海信电器股份有限公司 | The treating method and apparatus of data encryption, the treating method and apparatus of data deciphering |
| CN106992998A (en) * | 2017-05-25 | 2017-07-28 | 深圳市伊特利网络科技有限公司 | The safety implementation method and system of network link |
| WO2017206845A1 (en) * | 2016-05-31 | 2017-12-07 | 中兴通讯股份有限公司 | Packet transmitting and receiving methods and devices |
| WO2018177385A1 (en) * | 2017-03-31 | 2018-10-04 | 华为技术有限公司 | Data transmission method, apparatus and device |
| CN108989331A (en) * | 2018-08-09 | 2018-12-11 | 芜湖机智智能科技有限公司 | Data storage device uses method for authenticating and its equipment and storage medium |
| CN109117617A (en) * | 2018-08-09 | 2019-01-01 | 芜湖机智智能科技有限公司 | Remote authentication method and device thereof, equipment and the storage medium of self-service terminal |
| CN109145561A (en) * | 2018-08-09 | 2019-01-04 | 芜湖机智智能科技有限公司 | The method for authenticating and its equipment and storage medium of computer |
| CN111404671A (en) * | 2019-01-02 | 2020-07-10 | 中国移动通信有限公司研究院 | Mobile quantum secret communication method, gateway, mobile terminal and server |
| CN112041904A (en) * | 2018-05-07 | 2020-12-04 | 索尼公司 | Communication terminal, sensing device and server |
| CN114726591A (en) * | 2022-03-21 | 2022-07-08 | 北京汇元网科技股份有限公司 | Data unified security authentication method, system, electronic equipment and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145932A (en) * | 2007-10-15 | 2008-03-19 | 中兴通讯股份有限公司 | A realization method and system for program stream secret key in mobile multi-media broadcast service |
-
2008
- 2008-08-20 CN CNA2008101419712A patent/CN101345761A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145932A (en) * | 2007-10-15 | 2008-03-19 | 中兴通讯股份有限公司 | A realization method and system for program stream secret key in mobile multi-media broadcast service |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807997A (en) * | 2010-04-28 | 2010-08-18 | 中国工商银行股份有限公司 | Device and method for generating transmission key |
| CN102582536A (en) * | 2010-12-17 | 2012-07-18 | Nxp股份有限公司 | Pairing of angle sensor and electronic control unit |
| US8966289B2 (en) | 2010-12-17 | 2015-02-24 | Nxp B.V. | Pairing of angle sensor and electronic control unit |
| CN103001763A (en) * | 2012-11-23 | 2013-03-27 | 山东电力集团公司 | Encryption method for maintenance of power distribution terminals |
| CN104159320B (en) * | 2013-05-15 | 2019-09-03 | 上海联影医疗科技有限公司 | A kind of method for interchanging data of local heterogeneous network |
| CN104159320A (en) * | 2013-05-15 | 2014-11-19 | 上海联影医疗科技有限公司 | Data exchange method of local heterogeneous network |
| CN105471831A (en) * | 2014-09-15 | 2016-04-06 | 杭州海康威视数字技术股份有限公司 | Method and device for encrypting real-time transport protocol (RTP) packet |
| CN105323712A (en) * | 2015-12-04 | 2016-02-10 | 上海斐讯数据通信技术有限公司 | Bluetooth equipment automatic registering method |
| WO2017206845A1 (en) * | 2016-05-31 | 2017-12-07 | 中兴通讯股份有限公司 | Packet transmitting and receiving methods and devices |
| CN106851339A (en) * | 2017-01-03 | 2017-06-13 | 青岛海信电器股份有限公司 | The treating method and apparatus of data encryption, the treating method and apparatus of data deciphering |
| CN108667601B (en) * | 2017-03-31 | 2020-12-01 | 华为技术有限公司 | Method, device and equipment for transmitting data |
| CN108667601A (en) * | 2017-03-31 | 2018-10-16 | 华为技术有限公司 | A kind of method, apparatus and equipment of transmission data |
| WO2018177385A1 (en) * | 2017-03-31 | 2018-10-04 | 华为技术有限公司 | Data transmission method, apparatus and device |
| CN106992998A (en) * | 2017-05-25 | 2017-07-28 | 深圳市伊特利网络科技有限公司 | The safety implementation method and system of network link |
| CN112041904A (en) * | 2018-05-07 | 2020-12-04 | 索尼公司 | Communication terminal, sensing device and server |
| CN108989331A (en) * | 2018-08-09 | 2018-12-11 | 芜湖机智智能科技有限公司 | Data storage device uses method for authenticating and its equipment and storage medium |
| CN109117617A (en) * | 2018-08-09 | 2019-01-01 | 芜湖机智智能科技有限公司 | Remote authentication method and device thereof, equipment and the storage medium of self-service terminal |
| CN109145561A (en) * | 2018-08-09 | 2019-01-04 | 芜湖机智智能科技有限公司 | The method for authenticating and its equipment and storage medium of computer |
| CN111404671A (en) * | 2019-01-02 | 2020-07-10 | 中国移动通信有限公司研究院 | Mobile quantum secret communication method, gateway, mobile terminal and server |
| CN114726591A (en) * | 2022-03-21 | 2022-07-08 | 北京汇元网科技股份有限公司 | Data unified security authentication method, system, electronic equipment and storage medium |
| CN114726591B (en) * | 2022-03-21 | 2024-02-27 | 北京汇元网科技股份有限公司 | Data unified security authentication method, system, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101345761A (en) | Private data transmission method and system | |
| CN108574569B (en) | Authentication method and authentication device based on quantum key | |
| CN102857911B (en) | Positioning method, terminal and server | |
| EP2917867B1 (en) | An improved implementation of robust and secure content protection in a system-on-a-chip apparatus | |
| CN102333093A (en) | Data encryption transmission method and system | |
| CN210719302U (en) | Safety communication system of gas meter | |
| CN101448130A (en) | Method, system and device for protecting data encryption in monitoring system | |
| CN108900540B (en) | Service data processing method of power distribution terminal based on double encryption | |
| WO2009000209A1 (en) | A method and a system for transmitting and receiving the data | |
| CN103051869A (en) | System and method for encrypting camera video in real time | |
| CN101539977B (en) | Method for protecting computer software | |
| CN101895881B (en) | Method for realizing GBA secret key and pluggable equipment of terminal | |
| CN112020038A (en) | Domestic encryption terminal suitable for rail transit mobile application | |
| CN106453391A (en) | Long repeating data encryption and transmission method and system | |
| CN111787361B (en) | RTSP video streaming transmission method, system, equipment and storage medium | |
| CN102264068B (en) | Shared key consultation method, system, network platform and terminal | |
| CN101697511B (en) | Method and system for receiving mobile streaming media conditions | |
| CN111224958A (en) | Data transmission method and system | |
| CN101854594A (en) | Method and device for transmitting information and method and device for receiving information | |
| CN102045343A (en) | DC (Digital Certificate) based communication encrypting safety method, server and system | |
| CN111555879B (en) | Satellite communication network management channel message encryption and decryption method and system | |
| CN108111515B (en) | End-to-end secure communication encryption method suitable for satellite communication | |
| CN101539978B (en) | Software protection method based on space | |
| CN101488850B (en) | Method for ciphering content of multimedia broadcast | |
| CN101325486B (en) | Method and apparatus for transferring field permission cryptographic key |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20090114 |