CN104952008A - Teaching service system and teaching service method based on cloud server - Google Patents
Teaching service system and teaching service method based on cloud server Download PDFInfo
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- CN104952008A CN104952008A CN201410113588.1A CN201410113588A CN104952008A CN 104952008 A CN104952008 A CN 104952008A CN 201410113588 A CN201410113588 A CN 201410113588A CN 104952008 A CN104952008 A CN 104952008A
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Abstract
The invention relates to a teaching service system and a teaching service method based on a cloud server. The teaching service system comprises a teaching controller, the cloud server, a plurality of teacher clients and a plurality of student clients, wherein the teaching controller is in network connection with the cloud server, the plurality of teacher clients and the plurality of student clients respectively; the cloud server is in network connection with the teaching controller; each teacher client is in network connection with the teaching controller; each student client is in network connection with the teaching controller. In the teaching service system and the teaching service method disclosed by the invention, local files are incomplete encrypted copies and cannot be used even if in case of divulging; the key data and file parameters of the files are downloaded in real time, the data size is greatly reduced, and then the requirements on network conditions are greatly reduced; the running of the teaching controller is independent of the cpu of a classroom mainframe, and encryption parameters are always not exposed to the clients; the parameters of local encrypted files does not exist locally, thus increasing a difficulty to data cracking; a channel is provided for rapid dynamic update for the files.
Description
Technical field
The present invention relates to a kind of electronic teaching system, particularly a kind of Teaching Service System based on Cloud Server and method.
Background technology
Along with the development of technology, occurred numerous electronic classroom products, they have enriched the teaching means of teacher, simplify the operation of teacher to teaching facilities, serve impetus to raising teaching efficiency.In teaching process, the ways of presentation of the content of courses and teaching students in accordance with their aptitude to improving teaching efficiency important role for different student.But traditional electronic classroom more pays close attention to the operation of hardware and management and classroom teaching to the control of student, it is the instrument that teacher implements conventional teaching, substantially do not relate to the analysis & control of the content of courses and data, its result of use more depends on the experience of teacher.Therefore, needing under the prerequisite meeting existing e-classroom primary demand, for teacher provides the function such as analysis of content of courses management, Students ' Learning data, providing technological means for realizing the new form of teachings such as upset classroom.
Summary of the invention
The Teaching Service System based on Cloud Server that technical matters to be solved by this invention is to provide a kind ofly can carry out analysis and Control to the content of courses, protection content separately stores and method.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of Teaching Service System based on Cloud Server, comprises teaching controlling device, Cloud Server, several teacher's clients and multiple student client;
Described teaching controlling device, respectively with Cloud Server, several teacher's clients are connected with multiple student client network, for registering on Cloud Server, after succeeding in registration, receive the content of courses file that cloud server pushes; Certification is carried out to teacher's client, receives the authentication information of teacher's client; Carry out the content of courses file-sharing between teacher's client; Certification is carried out to student client, receives the authentication information of student client; Receive the classroom instruction that teacher's client sends; Collect the response message of student client and send to Cloud Server, response message being sent to Cloud Server, generates next step Teaching Suggestion in conjunction with the data norm in Cloud Server, next step Teaching Suggestion is sent to teacher's client;
Described Cloud Server, is connected with teaching controlling device network, and for carrying out certification to teacher's client, after certification is passed through, the authentication information of teacher's client is synchronized in teaching controlling device by cloud server; Carry out certification to student client, after certification is passed through, the authentication information of student client is synchronized in teaching controlling device by cloud server; Response message is put into large data to analyze;
Each described teacher's client, is connected with teaching controlling device network respectively, for teaching controlling device request authentication, when teaching controlling device authentication success, and teacher's client logs teaching controlling device; When teaching controlling device authentification failure, to cloud server request authentication, after server authentication passes through beyond the clouds, log in teaching controlling device; Classroom instruction is issued to student client by teaching controlling device; Receive next step Teaching Suggestion that teaching controlling device forwards;
Each described student client, is connected with teaching controlling device network respectively, to teaching controlling device request authentication, when teaching controlling device authentication success, logs in teaching controlling device; When teaching controlling device authentification failure, to cloud server request authentication, after server authentication passes through beyond the clouds, log in teaching controlling device; By sending the classroom instruction that response message response teacher client is issued to teaching controlling device.
The invention has the beneficial effects as follows: teacher can obtain data results in teaching process, system pushes related content for classroom, and teachers'action adjustment teaching process and content, accomplish to impart knowledge to students more targetedly, improves teaching efficiency; Local file is incomplete encryption copy, also cannot use even if give away secrets; Critical data and the file parameters of file are downloaded in real time, and data volume significantly reduces, and significantly reduce the requirement of network condition thereupon; The operation of teaching controlling device does not rely on the cpu of classroom main frame, and encryption parameter can not be exposed to client computer all the time; There is not this locality in the parameter of local cipher file, cracks add difficulty to data; For the quick dynamic update of file provides channel.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described teaching controlling device comprises local authentication module, command processing module, cloud service interface module, data analysis module, data sharing module, classroom internal communication module, content pushing module, USB module, student data collection module and data security module;
Described local authentication module, for carrying out certification to teacher's client, carries out certification to student client;
Described command processing module, for receiving the classroom instruction that teacher's client sends, and sends to each student client respectively by classroom instruction;
Described cloud service interface module, for registering on Cloud Server, after succeeding in registration, receives the content of courses file that cloud server pushes;
Described data analysis module, for analyzing classroom instruction in conjunction with the data norm in Cloud Server, generates next step Teaching Suggestion;
Described data sharing module, for sharing to Cloud Server by the classroom instruction of teacher's client and the response instruction of student client, and by the content of courses file-sharing between teacher's client to Cloud Server;
Described classroom internal communication module, is connected for setting up network respectively with Cloud Server, several teacher's clients and multiple student client;
Described content pushing module, for receiving the content of courses file that cloud server pushes;
Described USB module, for obtaining the certificate set up needed for network connection from External memory equipment;
Described student data collection module, for collecting the response message of student client;
Described data security module, to the decrypt data of reading in from hard disk, is encrypted the data of hard disk to be written.
Further, described Teaching Service System also comprises electronic instruction equipment, for receiving the idsplay order that teacher's client sends, and the file to be presented that student client sends, and show file to be presented.
Further, between the hard-disk interface that described teaching controlling device is arranged at main frame in classroom and hard disk, carry out encryption and decryption conversion for obtaining hard disk controller to the operational order of hard disk and to the data read and write in hard disk.
Further, described teaching controlling device is provided with a unique not modifiable device id.
Further, a kind of Teaching Service method based on Cloud Server, comprises the following steps:
Step 1: teaching controlling device is registered on Cloud Server, after succeeding in registration, cloud server pushes content of courses file to teaching controlling device;
Step 2: teacher's client is set up network with teaching controlling device and is connected, teacher's client to teaching controlling device request authentication, when teaching controlling device authentication success, teacher's client logs teaching controlling device; When teaching controlling device authentification failure, teacher's client is to cloud server request authentication, after server authentication passes through beyond the clouds, the authentication information of teacher's client is synchronized in teaching controlling device by cloud server, teacher's client logs teaching controlling device, teacher's client carries out content of courses file-sharing by teaching controlling device and other teacher's client;
Step 3: student client is set up network with teaching controlling device and is connected, student client is to teaching controlling device request authentication, and when teaching controlling device authentication success, student client logs in teaching controlling device; When teaching controlling device authentification failure, student client is to cloud server request authentication, and after server authentication passes through beyond the clouds, the authentication information of student client is synchronized in teaching controlling device by cloud server, and student client logs in teaching controlling device;
Step 4: teacher's client issues classroom instruction by teaching controlling device to student client, the classroom instruction that student client is issued by sending response message response teacher client to teaching controlling device;
Step 5: teaching controlling device is collected the response message of student client and sent to Cloud Server, large data response message being put into Cloud Server are analyzed, teaching controlling device generates next step Teaching Suggestion in conjunction with the data norm in Cloud Server, next step Teaching Suggestion is sent to teacher's client repeated execution of steps 4 and step 5, until teaching process terminates.
Further, also comprise in described step 4, teacher's client sends idsplay order to electronic instruction equipment, and student client sends file to be presented to electronic instruction equipment, and described electronic instruction equipment shows file to be presented.
Further, between the hard-disk interface that described teaching controlling device is arranged at main frame in classroom and hard disk, carry out encryption and decryption conversion for obtaining hard disk controller to the operational order of hard disk and to the data read and write in hard disk.
Further, carry out encryption and decryption transfer process to the data read in hard disk specifically to comprise the following steps:
Step 1A: in classroom, the hard disk controller of main frame sends data read request to hard disk;
Step 2A: teaching controlling device obtains data read request, and judges whether request object is protected data according to data read request, if protected data, performs step 3A, otherwise, the request object in hard disk is sent to hard disk controller;
Step 3A: the enciphered data of teaching controlling device read requests object from hard disk, teaching controlling device and cloud server connect, and according to system clock generated clock dynamic password, and utilize dynamic password to log in cloud server;
Step 4A: teaching controlling device is download decryption information and critical data from cloud server, according to decryption information, enciphered data is decrypted, obtain data decryption, utilize clock dynamic password decrypted key data, critical data after deciphering and data decryption are merged, the data after merging are sent to hard disk controller.
Further, carry out encryption and decryption transfer process to the data in write hard disk specifically to comprise the following steps:
Step 1B: teaching controlling device extracts critical data from data to be written, utilizes the clock dynamic password encrypt critical data generated according to system clock, critical data is sent to Cloud Server;
Step 2B: teaching controlling device removes critical data from data to be written, obtains non-encrypted data;
Step 3B: teaching controlling device downloads enciphered message from Cloud Server, and is encrypted by non-encrypted data according to enciphered message;
Step 4B: the data after encryption are stored to hard disk.
Accompanying drawing explanation
Fig. 1 is present system structural drawing;
Fig. 2 is the inventive method flow chart of steps.
In accompanying drawing, the list of parts representated by each label is as follows:
1, teaching controlling device, 2, Cloud Server, 3, teacher's client, 4, student client.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, be present system structural drawing; Fig. 2 is the inventive method flow chart of steps.
Embodiment 1
Based on a Teaching Service System for Cloud Server, comprise teaching controlling device 1, Cloud Server 2, several teacher's clients 3 and multiple student client 4;
Described teaching controlling device 1, respectively with Cloud Server 2, several teacher's clients 3 are connected with multiple student client 4 network, for registering on Cloud Server, after succeeding in registration, receive the content of courses file that cloud server pushes; Certification is carried out to teacher's client, receives the authentication information of teacher's client; Carry out the content of courses file-sharing between teacher's client; Certification is carried out to student client, receives the authentication information of student client; Receive the classroom instruction that teacher's client 3 sends; Collect the response message of student client 4 and send to Cloud Server 2, response message being sent to Cloud Server 2, generate next step Teaching Suggestion in conjunction with the data norm in Cloud Server, next step Teaching Suggestion is sent to teacher's client 3;
Described Cloud Server 2, is connected with teaching controlling device 1 network, and for carrying out certification to teacher's client, after certification is passed through, the authentication information of teacher's client is synchronized in teaching controlling device by cloud server; Carry out certification to student client, after certification is passed through, the authentication information of student client is synchronized in teaching controlling device by cloud server; Response message is put into large data to analyze;
Each described teacher's client 3, is connected with teaching controlling device 1 network respectively, for teaching controlling device request authentication, when teaching controlling device authentication success, and teacher's client logs teaching controlling device; When teaching controlling device authentification failure, to cloud server request authentication, after server authentication passes through beyond the clouds, log in teaching controlling device; Classroom instruction is issued to student client by teaching controlling device; Receive next step Teaching Suggestion that teaching controlling device 1 forwards;
Each described student client 4, is connected with teaching controlling device 1 network respectively, to teaching controlling device request authentication, when teaching controlling device authentication success, logs in teaching controlling device; When teaching controlling device authentification failure, to cloud server request authentication, after server authentication passes through beyond the clouds, log in teaching controlling device; By sending the classroom instruction that response message response teacher client is issued to teaching controlling device.
Described teaching controlling device comprises local authentication module, command processing module, cloud service interface module, data analysis module, data sharing module, classroom internal communication module, content pushing module, USB module, student data collection module and data security module;
Described local authentication module, for carrying out certification to teacher's client, carries out certification to student client;
Described command processing module, for receiving the classroom instruction that teacher's client 3 sends, and sends to each student client 4 respectively by classroom instruction;
Described cloud service interface module, for registering on Cloud Server, after succeeding in registration, receives the content of courses file that cloud server pushes;
Described data analysis module, for analyzing classroom instruction in conjunction with the data norm in Cloud Server, generates next step Teaching Suggestion;
Described data sharing module, for sharing to Cloud Server by the classroom instruction of teacher's client 3 and the response instruction of student client 4, and by the content of courses file-sharing between teacher's client to Cloud Server;
Described classroom internal communication module, is connected for setting up network respectively with Cloud Server 2, several teacher's clients 3 and multiple student client 4;
Described content pushing module, for receiving the content of courses file that cloud server pushes;
Described USB module, for obtaining the certificate set up needed for network connection from External memory equipment;
Described student data collection module, for collecting the response message of student client 4;
Described data security module, to the decrypt data of reading in from hard disk, is encrypted the data of hard disk to be written.
Described Teaching Service System also comprises electronic instruction equipment, for receiving the idsplay order that teacher's client sends, and the file to be presented that student client sends, and show file to be presented.
Between the hard-disk interface that described teaching controlling device 1 is arranged at main frame in classroom and hard disk, carry out encryption and decryption conversion for obtaining hard disk controller to the operational order of hard disk and to the data read and write in hard disk.
Described teaching controlling device is provided with a unique not modifiable device id.
Based on a Teaching Service method for Cloud Server, comprise the following steps:
Step 1: teaching controlling device is registered on Cloud Server, after succeeding in registration, cloud server pushes content of courses file to teaching controlling device;
Step 2: teacher's client is set up network with teaching controlling device and is connected, teacher's client to teaching controlling device request authentication, when teaching controlling device authentication success, teacher's client logs teaching controlling device; When teaching controlling device authentification failure, teacher's client is to cloud server request authentication, after server authentication passes through beyond the clouds, the authentication information of teacher's client is synchronized in teaching controlling device by cloud server, teacher's client logs teaching controlling device, teacher's client carries out content of courses file-sharing by teaching controlling device and other teacher's client;
Step 3: student client is set up network with teaching controlling device and is connected, student client is to teaching controlling device request authentication, and when teaching controlling device authentication success, student client logs in teaching controlling device; When teaching controlling device authentification failure, student client is to cloud server request authentication, and after server authentication passes through beyond the clouds, the authentication information of student client is synchronized in teaching controlling device by cloud server, and student client logs in teaching controlling device;
Step 4: teacher's client issues classroom instruction by teaching controlling device to student client, the classroom instruction that student client is issued by sending response message response teacher client to teaching controlling device;
Step 5: teaching controlling device is collected the response message of student client and sent to Cloud Server, large data response message being put into Cloud Server are analyzed, teaching controlling device generates next step Teaching Suggestion in conjunction with the data norm in Cloud Server, next step Teaching Suggestion is sent to teacher's client repeated execution of steps 4 and step 5, until teaching process terminates.
Also comprise in described step 4, teacher's client sends idsplay order to electronic instruction equipment, and student client sends file to be presented to electronic instruction equipment, and described electronic instruction equipment shows file to be presented.
Between the hard-disk interface that described teaching controlling device is arranged at main frame in classroom and hard disk, carry out encryption and decryption conversion for obtaining hard disk controller to the operational order of hard disk and to the data read and write in hard disk.
Carry out encryption and decryption transfer process to the data read in hard disk specifically to comprise the following steps:
Step 1A: in classroom, the hard disk controller of main frame sends data read request to hard disk;
Step 2A: teaching controlling device obtains data read request, and judges whether request object is protected data according to data read request, if protected data, performs step 3A, otherwise, the request object in hard disk is sent to hard disk controller;
Step 3A: the enciphered data of teaching controlling device read requests object from hard disk, teaching controlling device and cloud server connect, and according to system clock generated clock dynamic password, and utilize dynamic password to log in cloud server;
Step 4A: teaching controlling device is download decryption information and critical data from cloud server, according to decryption information, enciphered data is decrypted, obtain data decryption, utilize clock dynamic password decrypted key data, critical data after deciphering and data decryption are merged, the data after merging are sent to hard disk controller.
Carry out encryption and decryption transfer process to the data in write hard disk specifically to comprise the following steps:
Step 1B: teaching controlling device extracts critical data from data to be written, utilizes the clock dynamic password encrypt critical data generated according to system clock, critical data is sent to Cloud Server;
Step 2B: teaching controlling device removes critical data from data to be written, obtains non-encrypted data;
Step 3B: teaching controlling device downloads enciphered message from Cloud Server, and is encrypted by non-encrypted data according to enciphered message;
Step 4B: the data after encryption are stored to hard disk.
In concrete enforcement, need install driver in the main frame of classroom, determine whether that the mode of encrypt file has 2 kinds, 1, when system initialization, set up MFT Track Table and the encrypt file list of classroom host hard drive, follow the tracks of the operation of encrypt file; 2, in the main frame of classroom, set up a large files, in the host operating system of classroom, a virtual hard disk points to this large files, and all operations for virtual hard disk are cryptographic operation.
Classroom internal communication module controls teacher's client and student client and teaching process and content analysis controller UNICOM, and UNICOM's mode can be selected by wireless (Wifi) or wired (RJ45) mode.The peripherals such as electronic whiteboard are connected by the video interfaces such as HMDI/VGA or usb module and teaching process and content analysis controller.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. based on a Teaching Service System for Cloud Server, it is characterized in that: comprise teaching controlling device (1), Cloud Server (2), several teacher's clients (3) and multiple student client (4);
Described teaching controlling device (1), respectively with Cloud Server (2), several teacher's clients (3) are connected with multiple student client (4) network, for registering on Cloud Server, after succeeding in registration, receive the content of courses file that cloud server pushes; Certification is carried out to teacher's client, receives the authentication information of teacher's client; Carry out the content of courses file-sharing between teacher's client; Certification is carried out to student client, receives the authentication information of student client; Receive the classroom instruction that teacher's client (3) sends; Collect the response message of student client (4) and send to Cloud Server (2), response message is sent to Cloud Server (2), generate next step Teaching Suggestion in conjunction with the data norm in Cloud Server, next step Teaching Suggestion is sent to teacher's client (3);
Described Cloud Server (2), is connected with teaching controlling device (1) network, and for carrying out certification to teacher's client, after certification is passed through, the authentication information of teacher's client is synchronized in teaching controlling device by cloud server; Carry out certification to student client, after certification is passed through, the authentication information of student client is synchronized in teaching controlling device by cloud server; Response message is put into large data to analyze;
Each described teacher's client (3), is connected with teaching controlling device (1) network respectively, for teaching controlling device request authentication, when teaching controlling device authentication success, and teacher's client logs teaching controlling device; When teaching controlling device authentification failure, to cloud server request authentication, after server authentication passes through beyond the clouds, log in teaching controlling device; Classroom instruction is issued to student client by teaching controlling device; Receive next step Teaching Suggestion that teaching controlling device (1) forwards;
Each described student client (4), is connected with teaching controlling device (1) network respectively, to teaching controlling device request authentication, when teaching controlling device authentication success, logs in teaching controlling device; When teaching controlling device authentification failure, to cloud server request authentication, after server authentication passes through beyond the clouds, log in teaching controlling device; By sending the classroom instruction that response message response teacher client is issued to teaching controlling device.
2. Teaching Service System according to claim 1, it is characterized in that: described teaching controlling device comprises local authentication module, command processing module, cloud service interface module, data analysis module, data sharing module, classroom internal communication module, content pushing module, USB module, student data collection module and data security module;
Described local authentication module, for carrying out certification to teacher's client, carries out certification to student client;
Described command processing module, for receiving the classroom instruction that teacher's client (3) sends, and sends to each student client (4) respectively by classroom instruction;
Described cloud service interface module, for registering on Cloud Server, after succeeding in registration, receives the content of courses file that cloud server pushes;
Described data analysis module, for analyzing classroom instruction in conjunction with the data norm in Cloud Server, generates next step Teaching Suggestion;
Described data sharing module, for sharing to Cloud Server by the response instruction of the classroom instruction of teacher's client (3) and student client (4), and by the content of courses file-sharing between teacher's client to Cloud Server;
Described classroom internal communication module, for Cloud Server (2), several teacher's clients (3) are set up network respectively with multiple student client (4) and are connected;
Described content pushing module, for receiving the content of courses file that cloud server pushes;
Described USB module, for obtaining the certificate set up needed for network connection from External memory equipment;
Described student data collection module, for collecting the response message of student client (4);
Described data security module, to the decrypt data of reading in from hard disk, is encrypted the data of hard disk to be written.
3. Teaching Service System according to claim 1, it is characterized in that: described Teaching Service System also comprises electronic instruction equipment, for receiving the idsplay order that teacher's client sends, and the file to be presented that student client sends, and show file to be presented.
4. Teaching Service System according to claim 1, it is characterized in that: between the hard-disk interface that described teaching controlling device (1) is arranged at main frame in classroom and hard disk, carrying out encryption and decryption conversion for obtaining hard disk controller to the operational order of hard disk and to the data read and write in hard disk.
5. Teaching Service System according to claim 1, is characterized in that: described teaching controlling device is provided with a unique not modifiable device id.
6., based on a Teaching Service method for Cloud Server, it is characterized in that, comprise the following steps:
Step 1: teaching controlling device is registered on Cloud Server, after succeeding in registration, cloud server pushes content of courses file to teaching controlling device;
Step 2: teacher's client is set up network with teaching controlling device and is connected, teacher's client to teaching controlling device request authentication, when teaching controlling device authentication success, teacher's client logs teaching controlling device; When teaching controlling device authentification failure, teacher's client is to cloud server request authentication, after server authentication passes through beyond the clouds, the authentication information of teacher's client is synchronized in teaching controlling device by cloud server, teacher's client logs teaching controlling device, teacher's client carries out content of courses file-sharing by teaching controlling device and other teacher's client;
Step 3: student client is set up network with teaching controlling device and is connected, student client is to teaching controlling device request authentication, and when teaching controlling device authentication success, student client logs in teaching controlling device; When teaching controlling device authentification failure, student client is to cloud server request authentication, and after server authentication passes through beyond the clouds, the authentication information of student client is synchronized in teaching controlling device by cloud server, and student client logs in teaching controlling device;
Step 4: teacher's client issues classroom instruction by teaching controlling device to student client, the classroom instruction that student client is issued by sending response message response teacher client to teaching controlling device;
Step 5: teaching controlling device is collected the response message of student client and sent to Cloud Server, large data response message being put into Cloud Server are analyzed, teaching controlling device generates next step Teaching Suggestion in conjunction with the data norm in Cloud Server, next step Teaching Suggestion is sent to teacher's client repeated execution of steps 4 and step 5, until teaching process terminates.
7. Teaching Service method according to claim 6, it is characterized in that: also comprise in described step 4, teacher's client sends idsplay order to electronic instruction equipment, and student client sends file to be presented to electronic instruction equipment, and described electronic instruction equipment shows file to be presented.
8. Teaching Service method according to claim 6, it is characterized in that: between the hard-disk interface that described teaching controlling device is arranged at main frame in classroom and hard disk, carrying out encryption and decryption conversion for obtaining hard disk controller to the operational order of hard disk and to the data read and write in hard disk.
9. Teaching Service method according to claim 8, is characterized in that: carry out encryption and decryption transfer process to the data read in hard disk and specifically comprise the following steps:
Step 1A: in classroom, the hard disk controller of main frame sends data read request to hard disk;
Step 2A: teaching controlling device obtains data read request, and judges whether request object is protected data according to data read request, if protected data, performs step 3A, otherwise, the request object in hard disk is sent to hard disk controller;
Step 3A: the enciphered data of teaching controlling device read requests object from hard disk, teaching controlling device and cloud server connect, and according to system clock generated clock dynamic password, and utilize dynamic password to log in cloud server;
Step 4A: teaching controlling device is download decryption information and critical data from cloud server, according to decryption information, enciphered data is decrypted, obtain data decryption, utilize clock dynamic password decrypted key data, critical data after deciphering and data decryption are merged, the data after merging are sent to hard disk controller.
10. Teaching Service method according to claim 8, is characterized in that: carry out encryption and decryption transfer process to the data in write hard disk and specifically comprise the following steps:
Step 1B: teaching controlling device extracts critical data from data to be written, utilizes the clock dynamic password encrypt critical data generated according to system clock, critical data is sent to Cloud Server;
Step 2B: teaching controlling device removes critical data from data to be written, obtains non-encrypted data;
Step 3B: teaching controlling device downloads enciphered message from Cloud Server, and is encrypted by non-encrypted data according to enciphered message;
Step 4B: the data after encryption are stored to hard disk.
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| CN201410113588.1A CN104952008A (en) | 2014-03-26 | 2014-03-26 | Teaching service system and teaching service method based on cloud server |
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| CN115022029A (en) * | 2022-05-31 | 2022-09-06 | 四川易图天下信息科技有限公司 | Campus teacher and student information acquisition is with high in clouds encryption upload system |
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2014
- 2014-03-26 CN CN201410113588.1A patent/CN104952008A/en active Pending
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Application publication date: 20150930 |