CN101383825A - Method, apparatus and terminal implementing computer file ciphering - Google Patents
Method, apparatus and terminal implementing computer file ciphering Download PDFInfo
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- CN101383825A CN101383825A CNA2008101614151A CN200810161415A CN101383825A CN 101383825 A CN101383825 A CN 101383825A CN A2008101614151 A CNA2008101614151 A CN A2008101614151A CN 200810161415 A CN200810161415 A CN 200810161415A CN 101383825 A CN101383825 A CN 101383825A
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Abstract
The invention provides a method for encrypting computer files, which comprises the following steps: receiving a file to be encrypted sent by a computer, encrypting the file to be encrypted with key information, and sending the encrypted file to the computer. The invention also provides a device and a terminal for encrypting computer files. The encryption course of the file to be encrypted is carried out by utilizing the information resources in a terminal, so that the key information for the file to be encrypted is guaranteed to be always remained in the terminal, and the security of the encrypted file is improved.
Description
Technical field
The invention belongs to the computer documents security fields, relate in particular to a kind of method, device and terminal that realizes the computer documents deciphering.
Background technology
Be accompanied by the growing of internet worm or hacker attacks, the fail safe of data message is on the hazard on the computer, having the data message in the computer, is that trade secret or leakage of personal information are gone out and all will be caused great or irreparable damage to the user.Therefore people more and more pay attention to the fail safe of data message, also this point can be described as some the relevant encryption softwares and the appearance of cryptographic algorithm.
At present, it all is the resource of utilizing on the computer that the file in the computer is carried out encrypted process, finishes on computers.In case hacker attacks computer so just might steal the key information that is stored in the computer and cryptographic algorithm and wait and crack the file of having encrypted, thereby bring very big potential safety hazard can for the file that has added ciphertext.
Summary of the invention
The purpose of the embodiment of the invention is, a kind of method, device and terminal that realizes computer file ciphering is provided, in order to improve the fail safe of encrypt file.
For achieving the above object, the embodiment of the invention provides following technical scheme:
A kind of method that realizes computer file ciphering comprises:
The file that the desire that receiving computer sends is encrypted; Encrypt with the file that key information is encrypted described desire; Send the file of having encrypted to described computer.
A kind of device of realizing computer file ciphering comprises:
Desire the encrypt file receiving element, be used for the file of the desire encryption of receiving computer transmission;
Ciphering unit is used for encrypting with the file that key information is encrypted described desire;
The encrypt file transmitting element is used for sending the file of having encrypted to described computer.
A kind of terminal that realizes computer file ciphering comprises: desire encrypt file receiving element, ciphering unit, encrypt file transmitting element.
By technique scheme, the present invention can obtain following beneficial effect:
Method, device and the terminal of the realization computer file ciphering that the embodiment of the invention provides, to the ciphering process of desiring encrypt file is to utilize the information resources in the terminal to generate, assurance is used for that the desire encrypt file is carried out encrypted secret key information and stays terminal, thereby can improve the fail safe of encrypt file.
Description of drawings
The method flow diagram of the realization computer file ciphering that Fig. 1 provides for the embodiment of the invention one;
The method flow diagram of the realization computer file ciphering that Fig. 2 provides for the embodiment of the invention two;
The realization computer file ciphering device schematic diagram that Fig. 3 provides for the embodiment of the invention three;
The realization computer file ciphering device schematic diagram that Fig. 4 provides for the embodiment of the invention four.
Embodiment
Below in conjunction with accompanying drawing, the present invention further is elaborated.
As shown in Figure 1, the method for the realization computer file ciphering that the embodiment of the invention one provides comprises:
101, the file of the desire encryption of receiving computer transmission;
102, the file of described desire being encrypted with key information is encrypted;
103, send the file of having encrypted to described computer.
The method of the realization computer file ciphering that the embodiment of the invention one provides, to the ciphering process of desiring encrypt file all is to utilize the resource in the terminal to generate, assurance is used for that the desire encrypt file is carried out encrypted secret key information and stays terminal, thereby can improve the fail safe of encrypt file.
As shown in Figure 2, the method for the realization computer file ciphering that the embodiment of the invention two provides comprises:
201, the file of the desire encryption of receiving computer transmission;
Terminal obtains the file that desire is encrypted by document transmission device such as usb data line, bluetooth or infrared etc. from computer-side.
202, the file of described desire being encrypted with key information is encrypted;
The generative process of key information is in the terminal: the user imports string number, a pictures, the fingerprint of oneself or the resource informations such as sound of oneself by terminal, and the cryptographic algorithm in the terminal comes information resources are handled the generation key information.Particularly, the method how terminal is converted to information resources key information is a lot, simply does following introduction:
Terminal receives the picture of user's input, and the encryption software in the terminal is finished picture is converted into data message, then data message is carried out 256 equal portions, and every piece of data information is carried out obtaining data as key information after the binary conversion treatment; Terminal receives the fingerprint of user's input, finger print information transformed picture information can be handled, and processing method is identical with above-mentioned image processing method; The acoustic information that terminal receives user's typing can use the pcm encoder technology that acoustic information is rationally sampled, and will form 256 or 512 s' data as key information; Wherein the information resources such as numeral, picture, fingerprint and sound of user's input are the subscriber authentication sign indicating number.
Cryptographic algorithm belongs to flexible part in embodiments of the present invention, and the embodiment of the invention is not limited to above-mentioned cryptographic algorithm, can also adopt AES, RSA, DSA etc.
203, send the file of having encrypted to described computer;
After terminal realizes the file that desire is encrypted encrypted, the file of having encrypted sent on the computer preserve, the file that desire the is encrypted key information of encrypting use is stayed in the terminal like this.Even the file of having encrypted that is stored in the computer is intercepted and captured owing to do not have corresponding key information and terminal can't realize the deciphering of encrypt file, therefore can improve the file security of having encrypted.
204, receive the file of having encrypted that described computer sends;
Terminal is still by document transmission device such as usb data line, bluetooth or the file encrypted of obtaining from computer-side such as infrared.
205, utilize described key information that the described file of having encrypted is decrypted;
The user is decrypted when operation by terminal to the file of having encrypted, and terminal can point out the user to import the subscriber authentication sign indicating number, and after identifying code passed through, terminal was decrypted encrypt file, and what wherein file encryption is conciliate that the secret emissary uses is same terminal.
206, store the file of having deciphered.
The file storage of having deciphered is on terminal, the user can browse the file of having deciphered that is stored on the terminal by computer, after if the document transmission device of connecting terminal and computer disconnects, the file storage of having deciphered is on terminal, and can not store on computers, thereby can improve the fail safe of declassified document.
The method of the realization computer file ciphering that the embodiment of the invention two provides, need carry out double authentication, be subscriber authentication code authentication and terminal authentication, has only the subscriber authentication sign indicating number and endless, perhaps have only terminal and do not have authentication code, the user can't visit the file of having encrypted, therefore can improve the fail safe of encrypt file, also be to finish on terminal to the deciphering of encrypt file simultaneously, the file after the deciphering also is stored in and has also improved the fail safe of declassified document in the terminal simultaneously.
As shown in Figure 3, the device of the realization computer file ciphering that the embodiment of the invention three provides comprises:
Desire encrypt file receiving element 301, be used for the file of the desire encryption of receiving computer transmission;
The encrypt file transmitting element 303, are used for sending the file of having encrypted to described computer.
A kind of device of realizing computer file ciphering that the embodiment of the invention three provides, to the ciphering process of desiring encrypt file all is that information resources in the use device generate, therefore be used for that the desire encrypt file is carried out encrypted secret key information and stay described device, thereby can improve the fail safe of encrypt file.
As shown in Figure 4, the embodiment of the invention four provides a kind of device of realizing computer file ciphering, comprising:
Desire encrypt file receiving element 401, be used for the file of the desire encryption of receiving computer transmission;
Desire encrypt file receiving element 401 by document transmission device such as usb data line, bluetooth or infrared etc., receive the file that desire is encrypted from computer-side.
The encrypt file transmitting element 403, send the file of having encrypted to described computer.
The encrypt file receiving element 404, are used to receive the file of having encrypted that described computer sends;
Encrypt file receiving element 404 receives the file of having encrypted by document transmission device such as usb data line, bluetooth or infrared etc. from computer-side.
The file storage of having deciphered is in the memory cell 406 of terminal, the user can browse the file of having deciphered in the memory cell 406 by computer, after if the document transmission device of connecting terminal and computer disconnects, the file storage of having deciphered is in memory cell 406, and can not stay on the computer, thereby can improve the fail safe of declassified document.
The terminal of the realization computer file ciphering that the embodiment of the invention five provides, described terminal comprises the device of embodiment three, specifically comprises:
The desire encrypt file receiving element 301 that is used for the file that desire that receiving computer sends encrypts; Be used for the ciphering unit 302 encrypted with the file that key information is encrypted described desire; Be used for sending the transmitting element of encrypt file 303 of the file of having encrypted to described computer.
The terminal of the realization computer file ciphering that the embodiment of the invention five provides, the ciphering process of the file that needs are encrypted all is to utilize the information resources in the terminal to generate key information, assurance is used for that the desire encrypt file is carried out encrypted secret key information and stays terminal, thereby can improve the fail safe of encrypt file.
The terminal of the realization computer file ciphering that the embodiment of the invention six also provides, described terminal comprises the device of embodiment four, specifically comprises:
The desire encrypt file receiving element 401 that is used for the file that desire that receiving computer sends encrypts; Be used for the ciphering unit 402 encrypted with the file that key information is encrypted described desire, wherein, ciphering unit 402 comprises that also the information resources such as picture, fingerprint or audio file that are used for being stored in terminal generate described key information, and preserves the key information generation memory cell 4021 of described key information; Be used for sending the transmitting element of encrypt file 403 of the file of having encrypted to described computer; Be used to receive the file of having encrypted that described computer sends, the encrypt file receiving element 404; Be used to the decrypting device 405 of utilizing described key information that the described file of having encrypted is decrypted; Be used to store the file storage unit 406 of having deciphered.
The terminal of the realization computer file ciphering that the embodiment of the invention six provides, the ciphering process of the file that needs are encrypted all is to utilize the information resources in the terminal to generate key information, assurance is used for that the desire encrypt file is carried out encrypted secret key information and stays terminal, thereby can improve the fail safe of encrypt file; For the decrypting process of encrypt file also is to finish in this terminal, because decrypting process needs the double authentication of subscriber authentication sign indicating number and terminal and the file storage after the deciphering in terminal, has encrypted and the fail safe of declassified document thereby can improve.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (9)
1, a kind of method that realizes computer file ciphering is characterized in that, comprising:
The file that the desire that receiving computer sends is encrypted;
Encrypt with the file that key information is encrypted described desire;
Send the file of having encrypted to described computer.
2, the method for realization computer file ciphering according to claim 1 is characterized in that, also comprises:
Receive the file of having encrypted that described computer sends;
Utilize described key information that the described file of having encrypted is decrypted;
The file that storage has been deciphered.
3, the method for realization computer file ciphering according to claim 1 and 2 is characterized in that, described key information generates in terminal, and is kept in the described terminal.
4, the method for realization computer file ciphering according to claim 3 is characterized in that, described key information is generated through cryptographic algorithm by the picture of storing on the described terminal, fingerprint or audio file.
5, the method for realization computer file ciphering according to claim 1 and 2 is characterized in that, uses the transmitting-receiving of carrying out file between usb data line, bluetooth or infrared and the computer.
6, a kind of device of realizing computer file ciphering is characterized in that, comprising:
Desire the encrypt file receiving element, be used for the file of the desire encryption of receiving computer transmission;
Ciphering unit is used for encrypting with the file that key information is encrypted described desire;
The encrypt file transmitting element is used for sending the file of having encrypted to described computer.
7, the device of realization computer file ciphering according to claim 6 is characterized in that, also comprises:
The encrypt file receiving element is used to receive the file of having encrypted that described computer sends;
Decrypting device is used to utilize described key information that the described file of having encrypted is decrypted;
Memory cell is used to store the file of having deciphered.
8, according to the device of claim 6 or 7 described realization computer file cipherings, it is characterized in that, also comprise:
Key information generates memory cell, and the picture, fingerprint or the audio file that are used for being stored in terminal generate described key information, and preserve described key information.
9, a kind of terminal that realizes computer file ciphering is characterized in that, described terminal comprises the described arbitrary device of claim 6-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101614151A CN101383825A (en) | 2008-09-25 | 2008-09-25 | Method, apparatus and terminal implementing computer file ciphering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101614151A CN101383825A (en) | 2008-09-25 | 2008-09-25 | Method, apparatus and terminal implementing computer file ciphering |
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| Publication Number | Publication Date |
|---|---|
| CN101383825A true CN101383825A (en) | 2009-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101614151A Pending CN101383825A (en) | 2008-09-25 | 2008-09-25 | Method, apparatus and terminal implementing computer file ciphering |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859360A (en) * | 2009-04-08 | 2010-10-13 | 黄金富 | File security processing method, corresponding software and decryption reading device |
| CN102801526A (en) * | 2012-06-28 | 2012-11-28 | 清华大学 | Encryption method and device for file system |
| CN105809008A (en) * | 2016-04-21 | 2016-07-27 | 惠州Tcl移动通信有限公司 | Mobile terminal content encryption method and system based on irises |
| WO2017120938A1 (en) * | 2016-01-15 | 2017-07-20 | 张添章 | Method for pushing information when decrypting file, and smart terminal device |
| CN107786329A (en) * | 2017-09-04 | 2018-03-09 | 合肥迅大信息技术有限公司 | A kind of processing method of the information based on the camouflage of AR pictures |
| WO2019036972A1 (en) * | 2017-08-23 | 2019-02-28 | 深圳市优品壹电子有限公司 | Data backup method and device |
-
2008
- 2008-09-25 CN CNA2008101614151A patent/CN101383825A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859360A (en) * | 2009-04-08 | 2010-10-13 | 黄金富 | File security processing method, corresponding software and decryption reading device |
| CN102801526A (en) * | 2012-06-28 | 2012-11-28 | 清华大学 | Encryption method and device for file system |
| CN102801526B (en) * | 2012-06-28 | 2015-04-15 | 清华大学 | Encryption method and device for file system |
| WO2017120938A1 (en) * | 2016-01-15 | 2017-07-20 | 张添章 | Method for pushing information when decrypting file, and smart terminal device |
| CN105809008A (en) * | 2016-04-21 | 2016-07-27 | 惠州Tcl移动通信有限公司 | Mobile terminal content encryption method and system based on irises |
| CN105809008B (en) * | 2016-04-21 | 2019-06-04 | 惠州Tcl移动通信有限公司 | A kind of mobile terminal content locking and unlocking method and system based on iris |
| WO2019036972A1 (en) * | 2017-08-23 | 2019-02-28 | 深圳市优品壹电子有限公司 | Data backup method and device |
| CN107786329A (en) * | 2017-09-04 | 2018-03-09 | 合肥迅大信息技术有限公司 | A kind of processing method of the information based on the camouflage of AR pictures |
| CN107786329B (en) * | 2017-09-04 | 2020-10-09 | 合肥迅大信息技术有限公司 | Information processing method based on AR picture camouflage |
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Open date: 20090311 |