CN101315708A - Off-site controlled magnetic card cipher lock and control method thereof - Google Patents
Off-site controlled magnetic card cipher lock and control method thereof Download PDFInfo
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- CN101315708A CN101315708A CNA2007102007397A CN200710200739A CN101315708A CN 101315708 A CN101315708 A CN 101315708A CN A2007102007397 A CNA2007102007397 A CN A2007102007397A CN 200710200739 A CN200710200739 A CN 200710200739A CN 101315708 A CN101315708 A CN 101315708A
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Abstract
The invention relates to a magnetic card coded lock which is controlled randomly at off-site and a control method thereof; the magnetic card coded lock comprises a lock body, a controller connected with the lock body, a code generator A connected with the lock body by the controller, a user code card and a magnetic card reader connected with the lock body by the controller; when the reader reads that the code of the user code card is consistent with the current code generated by the code generator A, the lock can be opened; wherein, the magnetic card coded lock also comprises a code generator B and a card-writing device connected with the code generator B; the code generator A is completely separated from the code generator B; wherein, the code generator A and the code generator B generate random codes which are the same completely in real time according to the completely same randomized algorithms. The device and the method of the invention can improve the safety of the code effectively and prevent the revealing of the code.
Description
Technical field
The present invention relates to a kind of coded lock and control method thereof, relate in particular to a kind of magnetic card cipher lock and control method thereof that is used for strange land control.
Background technology
The disclosed magnetic card cipher lock open method of Chinese patent CN1107925 is that each magnetic card cipher lock is linked to each other with the center control machine that is connected with a computing machine jointly with a numeric keypad respectively, its random generator of computer control produces password, and this password transmitted and be stored in the memory of center control machine, the CPU of center control machine gathers the password that keyboard is dialled in, and with its memory in the password that stores relatively, have only when password conforms to, CPU carries start signal to magnetic card cipher lock, thereby opens magnetic card cipher lock.This invention scheme must be provided with one group of unlocking cipher earlier, and this password can not change before unblanking, and therefore divulges a secret easily.CN1106888 discloses a kind of arbitrarily encoding method of magnetic card cipher lock again, overcome the magnetic card cipher lock coding, defeated sign indicating number process is separate. can not encode during the input password, can not fail sign indicating number during coding, the shortcoming of divulging a secret easily, in the keying sequence of each input, comprise this unlocking cipher and the i.e. information of new sign indicating number of unlocking cipher next time, obtain new yard after this information processing.This is invented each password and only uses once, has improved confidentiality, but its also be a kind of password is set earlier, the known method of back password of unblanking, still exist the possibility of revealing password.At above problem, the present invention proposes the magnetic card cipher lock and the control method thereof of a kind of strange land at random control, can solve the password leakage problem preferably.
Summary of the invention
(1) technical matters that will solve
The objective of the invention is to overcome the defective of prior art, the coded lock of a kind of energy national treasury that the strange land is controlled and its control method are provided.
(2) technical scheme
The magnetic card cipher lock of a kind of strange land at random control that the present invention proposes, include lock body, the controller that is connected with lock body, the password generator A that is connected with lock body by controller, the user cipher card, the magnetic card reader that is connected with lock body by controller, when the current password that the password that reads in the user cipher card when card reader and password generator A produce is consistent, lock can be opened, wherein also comprise a password generator B, with be connected with password generator B write the card device, password generator A and password generator B isolate fully, wherein, password generator A and password generator B produce identical random cipher in real time according to identical random algorithm.
Wherein, password generator B is positioned over the strange land.
A kind of control method of above-mentioned lock comprises the steps:
A) password generator A and password generator B are isolated;
B) password generator A goes up the identical cryptographic algorithm software of synchronous operation with password generator B;
C) cryptographic algorithm software produces password at random in real time;
D) in the user cipher card, write current password by the card device of writing that is connected with password generator B, and the user cipher card is provided to the user;
E) after the user swipes the card by magnetic card reader in effective time and reads in correct password, lock could be opened.
(3) beneficial effect
Adopt magnetic card cipher lock of the present invention and control method thereof, from physically having isolated the password acquiring way fully, and password produces in real time at random, will the unblank control people of password generator that can only be by the strange land of user obtains, and because the different passwords of each generation, the control people of password generator can write the card after discharge by the user cipher card with password and give the user, have only after the user swipes the card by magnetic card reader and reads in correct password, lock could be opened, and has improved security and confidentiality so greatly.
Description of drawings
The invention will be further described for the described embodiment of following accompanying drawing.
Fig. 1 is a hardware structure diagram of the present invention;
Embodiment
The magnetic card cipher lock and the control method thereof of the control of strange land at random that the present invention proposes are described as follows; following embodiment only is used to illustrate the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the spirit and scope of the present invention; can also make various variations and modification, so all technical schemes that are equal to also belong to category of the present invention, scope of patent protection of the present invention should be limited by each claim.
As shown in Figure 1, whole coding lock system is made of two parts, it is respectively coded lock location part, produce part with the cryptosync that is in the strange land, coded lock location part comprises lock body, the controller that is connected with lock body, the password generator A that is connected with lock body by controller, the magnetic card reader that is connected with lock body by controller, here, lock body is selected the common magnetic card cipher lock based on the single-chip microcomputer design for use, the password generator is selected common PC for use, this PC is moving carries out the algorithm software that produces random cipher in real time, produces a current password in real time at random, and PC is by the opening and closing of serial ports and magnetic card cipher lock communication and control lock, after the user uses the user cipher cartoon to cross magnetic card reader to read in password, PC is gathered this password automatically, and compares with the current password of the algorithm software of PC, if coincide, then PC sends unlock command to coded lock, otherwise wrong person is imported in the prompt cipher input error continuously 3 times, and PC will be at automatic deadlock on the same day.
The password generator B that is positioned over the strange land also is the PC that a same password of operation produces algorithm software, and itself and password generator A synchronous operation, and it comprises writes the card device, write the card device and be connected, can in subscriber card, write current password value, therefore with password generator B, the user is if want to open coded lock, must and the control people of password generator B contact, and obtain carry out writing operation after, could obtain effective password.
Based on above design proposal, can guarantee the password real-time update of coded lock, can prevent password leakage, played safety precaution effect preferably.
In addition, because the generation rule of password is flexible, can use various password create-rules, for example can use the password that produces based on current date and time, current date and time is carried out algorithm process, export real-time password, this password changed once every 1 hour, because date and time is always constantly changing, therefore, can guarantee the password value exported always at random, the user wants to unblank, then must at first carry out carrying out writing operation at cipher control people place.
In addition, in order to guarantee the synchronism of time, password generator A can be connected with same time synchronized server (time server at for example national time service center) respectively with password generator B, every ten seconds from normal moveout correction current date and time, to guarantee the synchronism of password.
Claims (3)
1. magnetic card cipher lock of strange land control at random, include lock body, the controller that is connected with lock body, the password generator A that is connected with lock body by controller, the user cipher card, the magnetic card reader that is connected with lock body by controller, when the current password that the password that reads in the user cipher card when card reader and password generator A produce is consistent, lock can be opened, it is characterized in that also comprising a password generator B, with be connected with password generator B write the card device, password generator A and password generator B isolate fully, wherein, password generator A and password generator B produce identical random cipher in real time according to identical random algorithm.
2. coded lock as claimed in claim 1 is characterized in that password generator B is positioned over the strange land.
3. the control method of the described coded lock of claim 1, its feature comprises the steps:
A) password generator A and password generator B are isolated;
B) password generator A goes up the identical cryptographic algorithm software of synchronous operation with password generator B;
C) cryptographic algorithm software produces password at random in real time;
D) in the user cipher card, write current password by the card device of writing that is connected with password generator B, and the user cipher card is provided to the user;
E) after the user swipes the card by magnetic card reader in effective time and reads in correct password, lock could be opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102007397A CN101315708A (en) | 2007-05-31 | 2007-05-31 | Off-site controlled magnetic card cipher lock and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102007397A CN101315708A (en) | 2007-05-31 | 2007-05-31 | Off-site controlled magnetic card cipher lock and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101315708A true CN101315708A (en) | 2008-12-03 |
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ID=40106708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007102007397A Pending CN101315708A (en) | 2007-05-31 | 2007-05-31 | Off-site controlled magnetic card cipher lock and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101315708A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637312A (en) * | 2012-03-29 | 2012-08-15 | 中联重科股份有限公司 | Method, device and system for unlocking engineering machinery |
| CN106780895A (en) * | 2016-12-23 | 2017-05-31 | 余仁植 | Method for unlocking coded lock, locking method, coded lock, systems approach and system |
-
2007
- 2007-05-31 CN CNA2007102007397A patent/CN101315708A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637312A (en) * | 2012-03-29 | 2012-08-15 | 中联重科股份有限公司 | Method, device and system for unlocking engineering machinery |
| CN102637312B (en) * | 2012-03-29 | 2015-03-11 | 中联重科股份有限公司 | Method, device and system for unlocking engineering machinery |
| CN106780895A (en) * | 2016-12-23 | 2017-05-31 | 余仁植 | Method for unlocking coded lock, locking method, coded lock, systems approach and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081203 |