CN101004720A - Individualized intelligent learning machine for taking an exam based on encryption techniques - Google Patents
Individualized intelligent learning machine for taking an exam based on encryption techniques Download PDFInfo
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- CN101004720A CN101004720A CN 200710071683 CN200710071683A CN101004720A CN 101004720 A CN101004720 A CN 101004720A CN 200710071683 CN200710071683 CN 200710071683 CN 200710071683 A CN200710071683 A CN 200710071683A CN 101004720 A CN101004720 A CN 101004720A
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Abstract
An intelligent and personalized learning machine sitting for an examination based on enciphering technique consists of intelligent learning machine body sitting for an examination, enciphered data flash memory for storing cipher key and normal data flash memory for storing an enciphering/ de-enciphering algorithm.
Description
Technical field
The present invention relates to a kind of examination learning machine based on PDA type palm PC.
Background technology
Digital type learning machine is the simplest a among the PDA (personal digital assistant Personal Digital Assistant).It is developed by electronic dictionary, main function just provides functions such as the storage of Chinese and English intertranslation, telephone number, English word are read aloud, electronics textbook, its feature be exactly its all program all be to be solidificated on the storer, thereby storage capacity is limited, and function is also more single and do not have an extendibility.But these products also have its incomparable advantage, provide the specific aim of required function more intense as them, as recreation, calculating, account etc.Characteristics such as in addition, it also has volume little, and is simple to operate.The representative of this type of learning machine has instant translator, famous person, Wenquxing etc.
Intelligence examination learning machine belongs to the high-end product in the digital type learning machine, it is mainly the user Premium Features that relate to the language understanding aspect is provided, and for some specific language examination provides more detailed skill for examination and examination knowledge, for example: English-Chinese-Chinese-English whole sentence translation, the constituent analysis of whole sentence, functions such as academic title's English exam guidance also can be translated some important techniques data for the user.The problem that present this type of learning machine in use exists is: certain user's use habit does not wish to be understood by the stranger, for example some teacher utilizes the custom commonly used that learning machine is set a question for the student, certain user's translation information need be preserved and encrypt, and existing intelligence examination learning machine can't be maintained secrecy to the information processing result who produces.
Summary of the invention
The purpose of this invention is to provide a kind of individualized intelligent examination learning machine, to overcome the defective that existing intelligence examination learning machine can't be maintained secrecy to the information processing result who produces based on encryption technology.It comprises intelligence examination learning machine body A, and described intelligence examination learning machine body A comprises:
Microprocessor 1, control element and data handling component during as the work of intelligence examination learning machine utilize the program of its internal operation, finish user task;
Dynamic RAM 2 is as the dynamic data storage element of microprocessor 1;
Dynamic RAM administrative unit 3 is accepted the order and the data of microprocessor 1, writes or the element of sense data to dynamic RAM 2;
The order and the data of microprocessor 1 are accepted in flash memory management unit 7, the element of management flash memory;
Input-output device 5 is as the data Input/Output Device of microprocessor 1;
The order and the data of microprocessor 1 are accepted in I/O management unit 6, to input-output device 5 output datas or from input-output device 5 input data;
Intelligence examination learning machine of the present invention also comprises: enciphered data storage flash memory 8, with storage key, when intelligence examination learning machine body A carries out system start-up, key is called in dynamic RAM 2 by microprocessor 1; Simultaneously, enciphered data storage flash memory 8 also is used for storing data processed result as the storage unit of intelligence examination learning machine body A;
General data flash memory 4, with the storage encryption decipherment algorithm, when intelligence examination learning machine body A carried out system start-up, the encrypting and decrypting algorithm was loaded on dynamic RAM 2, combine with key, deciphering is called in data processed result the dynamic RAM 2 from enciphered data storage flash memory 8; Or before examination learning machine body A system closing, the encrypting and decrypting algorithm is combined with key, encrypt the data processed result in the dynamic RAM 2, and deposit this result in enciphered data storage flash memory 8.
The present invention is in system starting process, the user who is stored in the enciphered data storage flash memory 8 is crossed the test question of doing, after test result and other translation information etc. are decrypted, be placed in the dynamic RAM 2, for routine processes in the microprocessor 1 or use.Before system closing,, store into after the encryption in the enciphered data storage flash memory 8 the result that this microprocessor 1 is handled.So be provided with, protected user's individual privacy, for example information such as user's use habit, the frequent query word of user, user test achievement can not leaked.By key and cryptographic algorithm, the privacy that can prevent the user is by Brute Force in theory, even learning machine is lost, subscriber data can not leak yet.Encrypting and decrypting flow process in the examination learning machine of the present invention, transparent fully to the user, when the user operates and common learning machine in full accord.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Embodiment one: specify present embodiment below in conjunction with Fig. 1.Present embodiment comprises
Intelligence examination learning machine body A, it is exactly existing common intelligence examination learning machine.Described intelligence examination learning machine body A is made up of following element:
Microprocessor 1, control element and data handling component during as the work of intelligence examination learning machine utilize the program of its internal operation, finish user task;
Dynamic RAM 2 is as the dynamic data storage element of microprocessor 1;
Dynamic RAM administrative unit 3 is accepted the order and the data of microprocessor 1, writes or the element of sense data to dynamic RAM 2;
The order and the data of microprocessor 1 are accepted in flash memory management unit 7, the element of management flash memory;
Input-output device 5 is as the data Input/Output Device of microprocessor 1; Input-output device 5 comprises miniature keyboard 5-1, USB interface 5-2, liquid crystal display 5-3 and SD card 5-4.
The order and the data of microprocessor 1 are accepted in I/O management unit 6, to input-output device 5 output datas or from input-output device 5 input data;
The intelligence examination learning machine of present embodiment also comprises: enciphered data storage flash memory 8, with storage key, when intelligence examination learning machine body A carries out system start-up, key is called in dynamic RAM 2 by microprocessor 1; Simultaneously, enciphered data storage flash memory 8 also is used for storing data processed result as the storage unit of intelligence examination learning machine body A;
General data flash memory 4, with the storage encryption decipherment algorithm, when intelligence examination learning machine body A carried out system start-up, the encrypting and decrypting algorithm was loaded on dynamic RAM 2, combine with key, deciphering is called in data processed result the dynamic RAM 2 from enciphered data storage flash memory 8; Or before examination learning machine body A system closing, the encrypting and decrypting algorithm is combined with key, encrypt the data processed result in the dynamic RAM 2, and deposit this result in enciphered data storage flash memory 8.
Embodiment two: the difference of present embodiment and embodiment one is: as the key of encryption system important component part, a variety of selections can be arranged.The method that present embodiment adopts is the uniqueness according to hardware identifier, with the identifier of microprocessor No. 1, changes into binary mode, gets back 64, as key.Guaranteed every uniqueness that the learning machine key produces like this.
Because key is transparent fully to the user, promptly the user does not need to understand to key fully, even can not know key.Key is carried out result behind the XOR to be kept in a certain section fixed space in the enciphered data storage flash memory 8, this section space has only the access interface of key can visit when system start-up and is read only attribute, and the general data access interface that enciphered data storage flash memory 8 externally provides can not be visited, thereby has guaranteed the security of key storage.
In the time of each system start-up, microprocessor 1 is read the XOR sign indicating number of key by the cipher key access interface that enciphered data storage flash memory 8 externally provides, pass through XOR again after, obtain this learning machine key, and put into dynamic RAM 2; Microprocessor 1 is read the encrypting and decrypting algorithm from general data flash memory 4, by the encrypting and decrypting algorithm be loaded on the key of dynamic RAM 2, the learning machine of present embodiment can be finished the encrypting and decrypting task of related data.
For example: after the system start-up, the user has just finished a selection test question, and the opportunity to study of present embodiment is carried out following work:
A, by the general data access interface that enciphered data storage flash memory 8 externally provides, the achievement result before the user is read, and is loaded on dynamic RAM 2.
B, call the decipherment algorithm and the key that are loaded in the dynamic RAM 2, the data that steps A is obtained are decrypted.
C, according to test result structures all in the dynamic RAM 2 test structure variations curve that draws.
D, be key word with morphology and syntactic property, according to test result in the past, judge the user in the past make mistakes in this test, whether offend again, if then in test next time, strengthen the quantity of such test question; Otherwise, reduce the quantity of such test question.
E, call the encrypting and decrypting algorithm and the key that are loaded in the dynamic RAM 2, the judged result that obtains among the step D, user's data such as study habit are encrypted.
F, by the general data access interface that enciphered data storage flash memory 8 externally provides, the ciphertext that step e obtains is put into enciphered data storage flash memory 8.
Like this, illustrated with a little example learning machine of present embodiment is how to learn, use individualized knowledge, and how to have carried out access in the mode of encrypting.
Claims (1)
1, based on the individualized intelligent examination learning machine of encryption technology, it comprises intelligence examination learning machine body (A), and described intelligence examination learning machine body (A) comprising:
Microprocessor (1), control element and data handling component during as the work of intelligence examination learning machine utilize the program of its internal operation, finish user task;
Dynamic RAM (2) is as the dynamic data storage element of microprocessor (1);
Dynamic RAM administrative unit (3) is accepted the order and the data of microprocessor (1), writes or the element of sense data to dynamic RAM (2);
The order and the data of microprocessor (1) are accepted in flash memory management unit (7), the element of management flash memory;
Input-output device (5) is as the data Input/Output Device of microprocessor (1);
The order and the data of microprocessor (1) are accepted in I/O management unit (6), to input-output device (5) output data or from input-output device (5) input data;
It is characterized in that intelligence examination learning machine of the present invention also comprises: enciphered data storage flash memory (8), with storage key, when intelligence examination learning machine body A carries out system start-up, key is called in dynamic RAM (2) by microprocessor (1); Simultaneously, enciphered data storage flash memory (8) also is used for storing data processed result as the storage unit of intelligence examination learning machine body A;
General data flash memory (4), with the storage encryption algorithm, when intelligence examination learning machine body A carries out system start-up, the encrypting and decrypting algorithm is loaded on dynamic RAM (2), combine with key, deciphering is called in data processed result the dynamic RAM (2) from enciphered data storage flash memory (8); Or before examination learning machine body A system closing, cryptographic algorithm is combined with key, encrypt the data processed result in the dynamic RAM (2), and deposit this result in enciphered data storage flash memory (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710071683 CN101004720A (en) | 2007-01-24 | 2007-01-24 | Individualized intelligent learning machine for taking an exam based on encryption techniques |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200710071683 CN101004720A (en) | 2007-01-24 | 2007-01-24 | Individualized intelligent learning machine for taking an exam based on encryption techniques |
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| CN101004720A true CN101004720A (en) | 2007-07-25 |
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| CN 200710071683 Pending CN101004720A (en) | 2007-01-24 | 2007-01-24 | Individualized intelligent learning machine for taking an exam based on encryption techniques |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561279B (en) * | 2009-05-20 | 2013-03-20 | 深圳市凯立德科技股份有限公司 | Method and device for starting navigation system |
| CN103246852A (en) * | 2013-05-07 | 2013-08-14 | 珠海全志科技股份有限公司 | Enciphered data access method and device |
-
2007
- 2007-01-24 CN CN 200710071683 patent/CN101004720A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561279B (en) * | 2009-05-20 | 2013-03-20 | 深圳市凯立德科技股份有限公司 | Method and device for starting navigation system |
| CN103246852A (en) * | 2013-05-07 | 2013-08-14 | 珠海全志科技股份有限公司 | Enciphered data access method and device |
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