CN104967992A - Encrypting and decrypting method and device - Google Patents
Encrypting and decrypting method and device Download PDFInfo
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- CN104967992A CN104967992A CN201510237820.7A CN201510237820A CN104967992A CN 104967992 A CN104967992 A CN 104967992A CN 201510237820 A CN201510237820 A CN 201510237820A CN 104967992 A CN104967992 A CN 104967992A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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Abstract
The invention provides an encrypting and decrypting method and device. The encrypting method comprises: acquiring the operating information of a user, wherein the operating information comprises at least one of a hand gesture, voice, and a captured picture of the user; acquiring a number character corresponding to the operating information; and encrypting an original file by using the number character as a secret key. The encrypting and decrypting method and device fully utilize the intellectualized characteristic of a communication terminal when performing encryption and decryption, prevent dependence on a routine password input mode, and is convenient in encryption and decryption operation and wide in application range.
Description
Technical field
The present invention relates to encryption technology field, be specifically related to a kind of encrypting and decrypting method and device.
Background technology
Along with developing rapidly of the communication terminals such as smart mobile phone, mobile communication technology has become information transmission means indispensable in people's daily life.For preventing safety and the individual privacy of divulging a secret to protect original document in transmitting procedure, needing before transmission to be encrypted original document, and be decrypted upon completion of the transmission thus obtain original document.
Existing encrypting and decrypting mode mainly adopts the password of user's sets itself, inputs password during encrypting and decrypting by communication terminal.The complex operation of Password Input, and the intelligent feature not making full use of present communications terminal, restricted application.
Summary of the invention
The embodiment of the present invention provides a kind of encrypting and decrypting method and device, can avoid the dependence to ordinary cryptographic input mode, encrypting and decrypting easy to operate, applied widely.
The technical scheme that the embodiment of the present invention adopts is: provide a kind of encryption method, comprising: obtain the operation information of user, and operation information to comprise in the gesture motion of user, voice and pictures taken at least one information; Obtain the numerical character that operation information is corresponding; The original document that numerical character will transmit as double secret key is encrypted.
Wherein, original document is stored in transmitting terminal, and the step of operation information obtaining user comprises: the motion state of sensing transmitting terminal, and operation information when obtaining user's operating of contacts transmitting terminal according to motion state; And/or, operation information during transmitting terminal operating of contacts transmitting terminal non-by self induction installation sensing user.
Wherein, original document is stored in transmitting terminal, is previously stored with multiple operation informations of transmitting terminal in transmitting terminal, and the step of operation information obtaining user comprises: from multiple operation information, choose at least one operation information as user.
Wherein, the step obtaining numerical character corresponding to operation information comprises: carry out analog-to-digital conversion to obtain corresponding numerical character to the operation information of user; Or, be previously stored with the corresponding relation of operation information and numerical character; The numerical character corresponding according to the operation information of corresponding relation inquiry acquisition user.
Another technical scheme that the embodiment of the present invention adopts is: provide a kind of encryption device, comprising: the first acquisition module, and for obtaining the operation information of user, operation information to comprise in the gesture motion of user, voice and pictures taken at least one information; Second acquisition module, for obtaining numerical character corresponding to operation information; Encrypting module, the original document that the numerical character for being obtained by the second acquisition module will transmit as double secret key is encrypted.
Wherein, original document is stored in transmitting terminal, the motion state of the first acquisition module sensing transmitting terminal, and operation information when obtaining user's operating of contacts transmitting terminal according to motion state, and/or, operation information during the first acquisition module operating of contacts transmitting terminal non-by the induction installation sensing user of transmitting terminal.
Wherein, original document is stored in transmitting terminal, is previously stored with multiple operation informations of transmitting terminal in transmitting terminal, and the first acquisition module chooses at least one operation information as user from multiple operation information.
Wherein, encryption device also comprises memory module, memory module is for being previously stored with the corresponding relation of operation information and numerical character, the numerical character that second acquisition module is corresponding according to the operation information of corresponding relation inquiry acquisition user, or the second acquisition module carries out analog-to-digital conversion to obtain corresponding numerical character to the operation information of user.
Another technical scheme that the embodiment of the present invention adopts is: provide a kind of decryption method, comprising: obtain the operation information of user, and operation information to comprise in the gesture motion of user, voice and pictures taken at least one information; Obtain the numerical character that operation information is corresponding; The original document that numerical character receives as double secret key is decrypted.
Wherein, original document is received terminal and receives and store, and the step of operation information obtaining user comprises: the motion state of sensing receiving terminal, and operation information when obtaining user's operating of contacts receiving terminal according to motion state; And/or, operation information during receiving terminal operating of contacts receiving terminal non-by self induction installation sensing user.
Wherein, original document is received terminal and receives and store, and is previously stored with multiple operation informations of receiving terminal in receiving terminal, and the step of operation information obtaining user comprises: from multiple operation information, choose at least one operation information as user.
Wherein, the step obtaining numerical character corresponding to operation information comprises: carry out analog-to-digital conversion to obtain corresponding numerical character to the operation information of user; Or, be previously stored with the corresponding relation of operation information and numerical character; The numerical character corresponding according to the operation information of corresponding relation inquiry acquisition user.
Another technical scheme that the embodiment of the present invention adopts is: provide a kind of decryption device, comprising: the first acquisition module, and for obtaining the operation information of user, operation information to comprise in the gesture motion of user, voice and pictures taken at least one information; Second acquisition module, for obtaining numerical character corresponding to operation information; Encrypting module, the original document that the numerical character for being obtained by the second acquisition module receives as double secret key is decrypted.
Wherein, original document is received terminal and receives and store, the motion state of the first acquisition module sensing receiving terminal, and operation information when obtaining user's operating of contacts receiving terminal according to motion state, and/or, operation information during the first acquisition module operating of contacts receiving terminal non-by the induction installation sensing user of receiving terminal.
Wherein, original document is received terminal and receives and store, and is previously stored with multiple operation informations of receiving terminal in decryption device, and the first acquisition module chooses at least one operation information as user from multiple operation information.
Wherein, decryption device also comprises memory module, memory module is for being previously stored with the corresponding relation of operation information and numerical character, the numerical character that second acquisition module is corresponding according to the operation information of corresponding relation inquiry acquisition user, or the second acquisition module carries out analog-to-digital conversion to obtain corresponding numerical character to the operation information of user.
The encrypting and decrypting method of the embodiment of the present invention and device, numerical character corresponding for the operation information of user is encrypted deciphering as double secret key original document, wherein operation information to comprise in the gesture motion of user, voice and pictures taken the information of at least one, troublesome operation without the need to ordinary cryptographic input mode can realize encrypting and decrypting, easy to operate, and utilize the intelligent feature of the communication terminal of current popular to obtain operation information, applied widely.
Accompanying drawing explanation
Fig. 1 is the flow chart of the encryption method of one embodiment of the invention;
Fig. 2 is the flow chart of the encryption method of another embodiment of the present invention;
Fig. 3 is the flow chart of the encryption method of further embodiment of this invention;
Fig. 4 is the flow chart of the decryption method of one embodiment of the invention;
Fig. 5 is the theory diagram of the encryption device of one embodiment of the invention;
Fig. 6 is the theory diagram of the decryption device of one embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, embodiment described below the present invention is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the flow chart of the encryption method of one embodiment of the invention.The encryption method of the embodiment of the present invention can be used for the information transmission between transmitting terminal and receiving terminal, to the encryption of terminal storage information and the encryption of copies data, communication connection (or coupling) wherein between transmitting terminal and receiving terminal can connect for wireless network, also can be connection that is electrical or other form, transmitting terminal and receiving terminal are all for smart mobile phone, certainly smart mobile phone is not limited to, can also be there are data store any terminal equipment with transfer function, comprise PDA (Personal DigitalAssistant, personal digital assistant or panel computer), wearable device, portable mobile communication terminal, the combination in any of hard disk class storage medium etc.
The present invention is described for the information transmission between transmitting terminal and receiving terminal in full, and as shown in Figure 1, the encryption method of the present embodiment comprises:
Step S11: obtain the operation information of user, operation information to comprise in the gesture motion of user, voice and pictures taken at least one information.
Wherein, the gesture motion of user not only comprises gesture motion during user's operating of contacts transmitting terminal, such as to the rocking action of transmitting terminal, the sliding action etc. on transmitting terminal screen, gesture motion during the non-contact sending terminal of user can also be comprised, such as transmitting terminal is static when placing user above transmitting terminal screen every empty sliding action etc.
The present embodiment can pass through the built-in gravity accelerator of transmitting terminal, it is utilized to have vector motion and the feature that detects of acceleration to motion, obtain gesture motion during user's operating of contacts transmitting terminal, that is, gravity accelerator can judge the gesture motion of user by the running status detecting transmitting terminal.Due to gravity accelerator not only can detection level motion, the isoline that moves both vertically motion, can also detect the angled motion such as half circular motion, sinusoidal line motion, the operation information of the user therefore obtained can comprise various gestures action.
Wherein, the voice messaging of user not only comprises the combination in any such as duration, frequency, background noise of recorded voice, the keyword that can also comprise for recorded voice, the operation information that the keyword " encryption " such as extracting recorded voice is encrypted as this.The voice collection device such as the microphone that the present embodiment can be arranged by transmitting terminal obtain the voice messaging of user.
Wherein, the combination in any of the information such as shooting action, angle when the pictures taken information of user not only comprises pictures taken, also comprises the information of captured picture, such as, takes the people in the photo obtained or thing information, light intensity information etc.The camera that the present embodiment can be arranged by transmitting terminal obtains the pictures taken information of user.
Step S12: obtain the numerical character that operation information is corresponding.
Operation information due to the user obtained in step S11 is analog information, and to original document encryption needed for be digital information (data), therefore analog-to-digital conversion can be carried out to the operation information of user, thus using the data after conversion directly as corresponding numerical character.
For the gesture motion of user, the accekeration of gesture motion x, y, z axle in three dimensional space coordinate axle and/or the magnitude of angular velocity numerical character as correspondence can be chosen.For voice messaging and the pictures taken information of user, the numerical character of corresponding numerical value as correspondence can be chosen.
Step S13: the original document that numerical character will transmit as double secret key is encrypted.
Numerical character corresponding for the operation information of user is encrypted as double secret key original document by the embodiment of the present invention, without the need to the troublesome operation of ordinary cryptographic input mode, easy to operate, and utilize the intelligent feature of the communication terminal of current popular to obtain operation information, applied widely, the randomness of user's operation information is comparatively strong in addition, and possibility of divulging a secret is extremely low.
The embodiment of the present invention can without the need to preserving key (numerical character) for subsequent decryption while encryption, user's exchanging by the user with transmitting terminal of receiving terminal, directly obtain operation information when encrypting and repetitive operation, acquisition original document can be deciphered.
Be different from the Real-time Obtaining mode that above-mentioned citing describes, namely by the motion state of sensing transmitting terminal, and operation information when obtaining user's operating of contacts transmitting terminal according to motion state, or operation information during operating of contacts transmitting terminal non-by the induction installation sensing user of transmitting terminal self, and the operation information of user is obtained by the mode that both combine, the present invention can also by directly calling the operation information that the mode prestored obtains user.
Fig. 2 is the flow chart of the encryption method of another embodiment of the present invention.Call on basis embodiment illustrated in fig. 1 and with it the operation information that the prestores operation information as user unlike, the present embodiment, as shown in Figure 2, this encryption method comprises:
Step S21: choose the operation information obtaining user from the operation information prestored, operation information to comprise in the gesture motion of user, voice and pictures taken at least one information.
When being previously stored with multiple operation information of transmitting terminal in the transmitting terminal storing original document, can be random or choose at least one operation information as user by predetermined way from multiple operation information.Certainly, when being previously stored with an operation information if store in the transmitting terminal of original document, then the operation information of this operation information as user is directly called.
Step S22: obtain the numerical character that operation information is corresponding.
Step S23: the original document that numerical character will transmit as double secret key is encrypted.
Be compared to the mode of the operation information of user in real, the present embodiment is without the need to all starting the induction installation of transmitting terminal when encrypting at every turn, more convenient to operate.
Fig. 3 is the flow chart of the encryption method of further embodiment of this invention.On basis embodiment illustrated in fig. 1 and with it unlike, the present embodiment directly obtains numerical character not by analog-to-digital conversion, but obtain numerical character according to the corresponding relation pre-set, that is, even if know the operation information of the user of encryption, and do not know the corresponding relation of operation information and numerical character, as the numerical character of key when also cannot obtain encryption, improve fail safe further.
As shown in Figure 3, the encryption method of the present embodiment comprises:
Step S31: obtain the operation information of user, operation information to comprise in the gesture motion of user, voice and pictures taken at least one information.
Step S32: the corresponding relation being previously stored with operation information and numerical character.
Step S33: the numerical character corresponding according to the operation information of corresponding relation inquiry acquisition user.
Step S34: the original document that numerical character will transmit as double secret key is encrypted.
Fig. 4 is the flow chart of the decryption method of one embodiment of the invention.This decryption method is used for being decrypted to obtain original document to the information received, and as shown in Figure 4, comprising:
Step S41: obtain the operation information of user, operation information to comprise in the gesture motion of user, voice and pictures taken at least one information.
Step S42: obtain the numerical character that operation information is corresponding.
Step S43: the original document that numerical character receives as double secret key is decrypted.
The present embodiment can be used for being decrypted the original document of encryption embodiment illustrated in fig. 1, and therefore the acquisition of the numerical character of user's operation information and correspondence can be consulted above-mentioned.
For the acquisition of user's operation information,
By sensing the motion state of receiving terminal, and operation information when obtaining user's operating of contacts receiving terminal according to motion state, or operation information during operating of contacts receiving terminal non-by the induction installation sensing user of receiving terminal self, and obtained the operation information of user by the mode that both combine.Certainly, can also by directly calling the operation information that the mode prestored obtains user, particularly, when being previously stored with multiple operation information of receiving terminal in the receiving terminal receiving original document, can be random or choose at least one operation information as user by predetermined way from multiple operation information, when being previously stored with an operation information if receive in the receiving terminal of original document, then directly call the operation information of this operation information as user.
For the acquisition of numerical character corresponding to user's operation information,
Analog-to-digital conversion is carried out to obtain corresponding numerical character to the operation information of user, or, be previously stored with the corresponding relation of operation information and numerical character; The numerical character corresponding according to the operation information of corresponding relation inquiry acquisition user.
Fig. 5 is the theory diagram of the encryption device of one embodiment of the invention.As shown in Figure 5, the encryption device 50 of the present embodiment comprises the first acquisition module 51, second acquisition module 52 and encrypting module 53.Wherein:
First acquisition module 51 is for obtaining the operation information of user, and operation information to comprise in the gesture motion of user, voice and pictures taken at least one information.
Second acquisition module 52 is for obtaining numerical character corresponding to operation information.
The original document that encrypting module 53 will transmit as double secret key for the numerical character obtained by the second acquisition module 52 is encrypted.
Wherein, first acquisition module 51 senses the motion state of the transmitting terminal sending original document, and operation information when obtaining user's operating of contacts transmitting terminal according to motion state, and/or, first obtains operation information during 51 modules operating of contacts transmitting terminal non-by the induction installation sensing user of transmitting terminal, obtains the operation information of user with this.
Certainly, send the multiple operation informations being previously stored with transmitting terminal in the transmitting terminal of original document, first acquisition module 51 can choose at least one operation information as user from multiple operation information, or, if be previously stored with an operation information in transmitting terminal, then the first acquisition module 51 directly calls the operation information of this operation information as user.
In addition, second acquisition module 52 can carry out analog-to-digital conversion to obtain corresponding numerical character to the operation information of user, or, second acquisition module 52 can also inquire about numerical character corresponding to the operation information that obtains user according to the operation information that prestores and the corresponding relation of numerical character, now encryption device 50 comprises memory module (not shown), and memory module is for prestoring the corresponding relation of operation information and numerical character.
Fig. 6 is the theory diagram of the decryption device of one embodiment of the invention.As shown in Figure 6, the decryption device 60 of the present embodiment comprises the first acquisition module 61, second acquisition module 62 and deciphering module 63.Wherein:
First acquisition module 61 is for obtaining the operation information of user, and operation information to comprise in the gesture motion of user, voice and pictures taken at least one information.
Second acquisition module 62 is for obtaining numerical character corresponding to operation information.
The original document that deciphering module 63 receives as double secret key for the numerical character obtained by the second acquisition module 62 is decrypted.
Wherein, first acquisition module 61 senses the motion state of the receiving terminal sending original document, and operation information when obtaining user's operating of contacts transmitting terminal according to motion state, and/or, first obtains operation information during 61 modules operating of contacts receiving terminal non-by the induction installation sensing user of receiving terminal, obtains the operation information of user with this.
Certainly, send the multiple operation informations being previously stored with receiving terminal in the receiving terminal of original document, first acquisition module 61 can choose at least one operation information as user from multiple operation information, or, if be previously stored with an operation information in receiving terminal, then the first acquisition module 61 directly calls the operation information of this operation information as user.
In addition, second acquisition module 62 can carry out analog-to-digital conversion to obtain corresponding numerical character to the operation information of user, or, second acquisition module 62 can also inquire about numerical character corresponding to the operation information that obtains user according to the operation information that prestores and the corresponding relation of numerical character, now decryption device 60 comprises memory module (not shown), and memory module is for prestoring the corresponding relation of operation information and numerical character.
In embodiments of the present invention, encryption device 50 can be transmitting terminal, and also can be the built-in construction unit of transmitting terminal, decryption device 60 can be receiving terminal, also can be the built-in construction unit of receiving terminal.Encryption device 50 and decryption device 60 correspondence perform the encrypting and decrypting method of the various embodiments described above, have the technique effect identical with it.
Should be understood that, encryption device 50 described above and the execution mode of decryption device 60 are only schematic, the division of described module is only a kind of logic function and divides, actual when realizing multiple module can in conjunction with or can be integrated in another system, or some features can be ignored, or do not perform.In addition, module coupling each other or communication connection can be by some interfaces, also can be electrical or other form.
The embodiment of the present invention provides a kind of transmission method and transmitting device of original document further, and the correspondence of encrypting and decrypting method and device that this transmission method and transmitting device comprise above-described embodiment combines.The be combineding with each other of technical characteristic between various embodiments of the present invention, the original document in full comprises at least one in the files such as audio frequency, picture, word.
In sum, the encrypting and decrypting method of the embodiment of the present invention and device, numerical character corresponding for the operation information of user is encrypted deciphering as double secret key original document, wherein operation information to comprise in the gesture motion of user, voice and pictures taken the information of at least one, troublesome operation without the need to ordinary cryptographic input mode can realize encrypting and decrypting, easy to operate, and utilize the intelligent feature of the communication terminal of current popular to obtain operation information, applied widely.
Again illustrate; the foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; such as the be combineding with each other of technical characteristic between each embodiment; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (16)
1. an encryption method, is characterized in that, described encryption method comprises:
Obtain the operation information of user, described operation information to comprise in the gesture motion of described user, voice and pictures taken at least one information;
Obtain the numerical character that described operation information is corresponding;
The original document that described numerical character will transmit as double secret key is encrypted.
2. encryption method according to claim 1, is characterized in that, described original document is stored in transmitting terminal, and the step of the operation information of described acquisition user comprises:
Sense the motion state of described transmitting terminal, and operation information when obtaining transmitting terminal described in user's operating of contacts according to described motion state; And/or,
Operation information when described transmitting terminal senses transmitting terminal described in the non-operating of contacts of described user by the induction installation of self.
3. encryption method according to claim 1, is characterized in that, described original document is stored in transmitting terminal, is previously stored with multiple operation information in described transmitting terminal, and the step of the operation information of described acquisition user comprises:
At least one operation information as described user is chosen from described multiple operation information.
4. encryption method according to claim 1, is characterized in that, the step of the numerical character that the described operation information of described acquisition is corresponding comprises:
Analog-to-digital conversion is carried out to obtain corresponding numerical character to the operation information of described user; Or,
Be previously stored with the corresponding relation of operation information and numerical character;
The numerical character corresponding according to the operation information of the described user of described corresponding relation inquiry acquisition.
5. an encryption device, is characterized in that, described encryption device comprises:
First acquisition module, for obtaining the operation information of user, described operation information to comprise in the gesture motion of described user, voice and pictures taken at least one information;
Second acquisition module, for obtaining numerical character corresponding to described operation information;
Encrypting module, the original document that the described numerical character for being obtained by described second acquisition module will transmit as double secret key is encrypted.
6. encryption device according to claim 5, it is characterized in that, described original document is stored in transmitting terminal, described first acquisition module senses the motion state of described transmitting terminal, and described operation information when obtaining transmitting terminal described in user's operating of contacts according to described motion state, and/or, described operation information when described first acquisition module senses transmitting terminal described in the non-operating of contacts of described user by the induction installation of described transmitting terminal.
7. encryption device according to claim 5, it is characterized in that, described original document is stored in transmitting terminal, be previously stored with multiple operation informations of described transmitting terminal in described transmitting terminal, described first acquisition module chooses at least one operation information as described user from described multiple operation information.
8. encryption device according to claim 5, it is characterized in that, described encryption device also comprises memory module, described memory module is for being previously stored with the corresponding relation of operation information and numerical character, the described numerical character that the operation information that described second acquisition module obtains described user according to described corresponding relation inquiry is corresponding, or described second acquisition module carries out analog-to-digital conversion to obtain corresponding described numerical character to the operation information of described user.
9. a decryption method, is characterized in that, described decryption method comprises:
Obtain the operation information of user, described operation information to comprise in the gesture motion of described user, voice and pictures taken at least one information;
Obtain the numerical character that described operation information is corresponding;
The original document that described numerical character receives as double secret key is decrypted.
10. decryption method according to claim 9, is characterized in that, described original document is received terminal and receives and store, and the step of the operation information of described acquisition user comprises:
Sense the motion state of described receiving terminal, and operation information when obtaining receiving terminal described in user's operating of contacts according to described motion state; And/or,
Operation information when described receiving terminal senses receiving terminal described in the non-operating of contacts of described user by the induction installation of self.
11. decryption methods according to claim 9, it is characterized in that, described original document is received terminal and receives and store, and is previously stored with multiple operation informations of described receiving terminal in described receiving terminal, and the step of the operation information of described acquisition user comprises:
At least one operation information as described user is chosen from described multiple operation information.
12. decryption methods according to claim 9, is characterized in that, the step of the numerical character that the described operation information of described acquisition is corresponding comprises:
Analog-to-digital conversion is carried out to obtain corresponding numerical character to the operation information of described user; Or,
Be previously stored with the corresponding relation of operation information and numerical character;
The numerical character corresponding according to the operation information of the described user of described corresponding relation inquiry acquisition.
13. 1 kinds of decryption devices, is characterized in that, described decryption device comprises:
First acquisition module, for obtaining the operation information of user, described operation information to comprise in the gesture motion of described user, voice and pictures taken at least one information;
Second acquisition module, for obtaining numerical character corresponding to described operation information;
Encrypting module, the original document that the described numerical character for being obtained by described second acquisition module receives as double secret key is decrypted.
14. decryption devices according to claim 13, it is characterized in that, described original document is received terminal and receives and store, described first acquisition module senses the motion state of described receiving terminal, and described operation information when obtaining receiving terminal described in user's operating of contacts according to described motion state, and/or, described operation information when described first acquisition module senses receiving terminal described in the non-operating of contacts of described user by the induction installation of described receiving terminal.
15. decryption devices according to claim 13, it is characterized in that, described original document is received terminal and receives and store, be previously stored with multiple operation informations of described receiving terminal in described decryption device, described first acquisition module chooses at least one operation information as described user from described multiple operation information.
16. decryption devices according to claim 13, it is characterized in that, described decryption device also comprises memory module, described memory module is for being previously stored with the corresponding relation of operation information and numerical character, the described numerical character that the operation information that described second acquisition module obtains described user according to described corresponding relation inquiry is corresponding, or described second acquisition module carries out analog-to-digital conversion to obtain corresponding described numerical character to the operation information of described user.
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| CN201510237820.7A CN104967992A (en) | 2015-05-11 | 2015-05-11 | Encrypting and decrypting method and device |
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Effective date of abandoning: 20190809 |