CN101067358A - Trick lock mechanism - Google Patents
Trick lock mechanism Download PDFInfo
- Publication number
- CN101067358A CN101067358A CN 200710104325 CN200710104325A CN101067358A CN 101067358 A CN101067358 A CN 101067358A CN 200710104325 CN200710104325 CN 200710104325 CN 200710104325 A CN200710104325 A CN 200710104325A CN 101067358 A CN101067358 A CN 101067358A
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- Prior art keywords
- key
- lock body
- encryption
- yanshi
- plaintext
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Abstract
The present invention relates to the enciphering and deciphering process for cipher lock, and belongs to the field of electronic technology. The process includes storing the user formed cipher key file in a USB disk, a SD card or other movable memory device, unloading to the lock body and the key for the lock body to generate serial random number plain text, change into cipher text sent to the key, deciphering the cipher text in the key to create plain text sent to the lock body, and comparing the received plain text with the original plain text in the lock body so as to perform the control on the mechanical part. The present invention is superior in that the cipher key may be changed at will to ensure safety.
Description
(1) technical field
The present invention relates to a kind of course of work of encrypt and decrypt of coded lock, belong to electronic applications.
(2) background technology
Traditional coded lock adopts is that the plaintext and the simple of ciphertext of password sheet form substitutes and displacement, and lockset fixes once producing its key, does not have flexibility, as long as after in the like product one was cracked, other products just was broken simultaneously.
(3) summary of the invention
Be stored in the homemade key of user (constituting) on the movable storage devices such as USB flash disk, SD card with document form by identifying code and AES sequence, again with its respectively unloading to lock body with on the key, (perhaps at lock body, directly add keyboard on the key and finish the key setting, perhaps carry out key and finish by the interim external connection keyboard of interfaces such as USB when being provided with, but must guarantee that lock body is identical with on the key key) at needs; Lock body produces the random number plain text of corresponding number according to the number of algorithm in the key, by key plaintext is become ciphertext, lock body sends to key with ciphertext, on the key owing to adopted symmetric cryptographic technique, ciphertext has been generated expressly by the key deciphering again, key sends to lock body with plaintext again, the plaintext that lock body will receive (generated or obtained through the lock body reduction by the key generation by key) compares with the plaintext of the original generation of lock body, produces the control (opening or closing) to the mechanical part of lock when meeting the requirements.When adopting wireless technology (as radio, bluetooth, infrared rays etc.) that above-mentioned ciphertext is propagated with plaintext, can improve safety to the communication encryption that expressly carries out intermediate link, because ciphertext itself is encrypted, so can communicate encryption again when propagating, also can communicate encryption again.The invention has the advantages that and to change key at any time, can put things right once and for all after door or safety cabinet etc. are installed and used this coded lock, needn't change lock (hardware), need only change key (software) just as having changed one new lock.
(4) specific embodiment
By CPU, internal memory, USB controller/transceiver (perhaps SD bus or spi bus visit SD card), infrared transceiver, Flash memory, interrupt control unit, clock circuit, power supply, motor (or electromagnetic valve) and motor (or electromagnetic valve) interface and drive circuit, circuit board etc. constitute lock body, dead bolt is converted to curvilinear motion and moves back and forth and constitute (or constitute by electromagnetic valve is reciprocating) by motor-driven swing-bar mechanism (or by motor driven gear, gear driven tooth bar) etc.
Constitute key by CPU, internal memory, USB controller/transceiver (perhaps with SD bus or spi bus visit SD card), infrared transceiver, Flash memory, interrupt control unit, clock circuit, power supply, circuit board, casing, button.
Lock changes the dormancy electricity-saving state over to automatically with key when a very long time no signal is imported.
At first the user imports AES on the PC PC, as: "+5 ,-9 ,-131 ,+54, ÷ 26, * 37 ... " etc. form key file (as 123.txt, it is fixed again when file extension etc. carry out the actual production manufacturing, txt is an example herein), and deposit in the USB flash disk (or SD card), USB flash disk (or SD card) is inserted into successively lock body and on the key, lock body and key are finished automatically key are input to task on the Flash memory by carrying out interrupt routine again.(if cost allows, also can be, directly add keyboard on the key and finish the key setting at lock body, perhaps carry out key at needs and finish by the interim external connection keyboard of interfaces such as USB when being provided with, but must guarantee that lock body is identical with on the key key).
The button of pressing on the key when unblanking (or locking) sends infrared request by key to lock body, correspondence once asks lock body just to generate one group of random number plain text (random number that promptly each request generates is not necessarily identical), then it is (as follows as the algorithm that certain user is provided with: "+3 ;-6 ;-2 ;+4; * 2 " to generate ciphertext, totally 5 algorithms, lock body is according to the algorithm number 5 on the key, generate 5 random number plain text by random number generator earlier, as follows as certain record: " 21; 33; 15; 4; 6 " calculate the generation ciphertext with corresponding algorithm again: " 24; 27; 13; 8; 12 "), and to the key transmission in the past by infrared rays, after key is received ciphertext, owing to adopt symmetric cryptographic technique with lock body, key is carried out deciphering and is generated expressly, and plaintext sent to lock body, the plaintext that lock body will receive compares (adopting the difference absolute values of two numbers less than the setting method when floating number compares) with the plaintext of original generation, waiting for one section random time t when identical
1(t
1Be 0 and T
1Between random number, produce T by random number generator
1In the user opens the door process, choose in the sustainable wait scope) after, transmit control signal to motor or solenoid valve interface circuit, make motor or electromagnetic valve produce action; If it is different, make variable yanshi=yanshi+1 (yanshi is initialized as 0), after this lock body also can carry out several times again, and unlocking cipher relatively (responds extraneous request), as password bad still, still carry out yanshi=yanshi+1, when reaching limited number of times (as 10 times) rear locking, yanshi enters the time-delay state, no longer extraneous request is reacted to lock body, hardware clock circuit sends interrupt requests one time to CPU at set intervals, check whether timing (as: 30 minutes or two seconds) arrives software timer, if to just carrying out clear 0 task of yanshi, this moment, lock body can respond extraneous request, and this is to prevent that the high-speed computer of in the future producing from cracking the effective ways of this lock.
Communication encryption: when key and lock body carry out radio communication, key is issued plaintext (this example " 21; 33; 15; 4; 6 of lock body ") preferably communicate encryption, method is that a key is set on key and lock body more simultaneously, perhaps utilize above-mentioned existing key (this example "+3 ;-6 ;-2 ;+4; * 2 ") to communicate encryption, during communication except that sending expressly the new ciphertext that become by communication encryption, also the communication encryption algorithm information that adopts to be sent to the other side in the lump, this information makes a distinction by the punctuation mark separation with new ciphertext, as " 19; 34; 13; 5; 4; 3,124 " preceding 5 is new ciphertext in; be the communication encryption algorithm information behind the comma; all elements of " 3 " expression in will be expressly carries out the 1st time with the 3rd algorithm " 2 " in the key to be encrypted, and " 124 " expression in will be expressly second and the 4th carry out the 2nd encryption with the 1st algorithm "+3 " in the key.Encrypt for the first time and must guarantee that all elements all encrypt.
The encryption number of times of communication encryption and choosing of specific algorithm: encrypting number of times can be (as only encrypting 1 time or twice) of fixed value, but it is good not as variable, picked at random is encrypted number of times (〉=1), because the expressed number range of computer is limited at present, so encrypting the number of times upper limit also must consider, can take by numerical value maximum in the plaintext, change the fastest algorithm (faster than+4) or algorithm combination in the algorithm (as expressly being 6 as this example * 2, algorithm is+8 and * 2, then 6 add take advantage of after 82 than 6-straight take advantage of 2 change fast) and the expressed greatest measure of computer determine.The concrete again algorithm of determining each encryption after the encryption number of times is determined, picked at random AES in key.
Choosing of the encryption element of communication encryption: encrypt for the first time and must guarantee that all elements all encrypt, having encrypted for the second time can be only to the part aes encryption in the plaintext, at first determine to select several objects, in the closed interval [1, the total number of AES in the key] middle picked at random, determine respectively again each to as if who (because all corresponding concrete sequence number of each element expressly, therefore also picked at random can only occur once with same element in ciphering process).
In a word, the AES that above communication encryption adopted, essence is to derive more algorithm on the finite algorithm basis that the user provides.New ciphertext that lock body will receive and communication encryption algorithm information carry out the plaintext before the backwards calculation deciphering is reduced into communication encryption, compare (when floating number compares, adopting the difference absolute values of two numbers) with the plaintext of the original generation of lock body, waiting for one section random time t when identical less than the setting method
1(t
1Be 0 and T
1Between random number, produce T by random number generator
1In the user opens the door process, choose in the sustainable wait scope) after, transmit control signal to motor or solenoid valve interface circuit, make motor or electromagnetic valve produce action; If it is different, make variable yanshi=yanshi+1 (yanshi is initialized as 0), after this lock body also can carry out several times again, and unlocking cipher relatively (responds extraneous request), as password bad still, still carry out yanshi=yanshi+1, when reaching limited number of times (as 10 times) rear locking, yanshi enters the time-delay state, no longer extraneous request is reacted to lock body, hardware clock circuit sends interrupt requests one time to CPU at set intervals, check whether timing (as: 30 minutes or two seconds) arrives software timer, if to just carrying out clear 0 task of yanshi, this moment, lock body can respond extraneous request.
Because ciphertext itself encrypts,, also can communicate encryption again so can communicate encryption again when propagating.If communicate the same literary composition of stating clearly of encryption method.
Above-mentioned infrared component and function should be changed accordingly when wireless technologys such as employing bluetooth or radio.
As long as the mains supply outage, the hard interruption that priority is the highest is saved in the nonvolatile memory after making yanshi=yanshi+1 again, when the SRAM that adopts the lithium electricity makes internal memory, needn't worry the storage problem that cuts off the power supply, but also should make yanshi-yanshi+1.
In order to prevent that the thief from leaping in through the window, can follow one's inclinations behind the indoor replacing key and open the door, can identifying code be set in the front of key file, as * * * 8822666*** etc., just can deposit the algorithm in the key on the lock body after having only identifying code correct, also reconfigurable identifying code of while is as * * * 8822666****8377222***, wherein 8822666 is former identifying code, and 8377222 is new identifying code.
Claims (3)
1, a kind of coded lock mechanism, it is characterized by: the user is stored in lock body and on the key from the identifying code established and AES with the form of key, open at every turn, during locking, key sends request to lock body, each lock body all produces a series of random number plain text according to request and key, by key plaintext is become ciphertext, lock body sends to key with ciphertext, on the key owing to adopted symmetric cryptographic technique, ciphertext has been generated expressly by the key deciphering again, key sends to lock body with plaintext again, the plaintext that lock body will receive (generated by key deciphering or generated by key to obtain through the lock body reduction) compares with the plaintext of the original generation of lock body, produces the control to the mechanical part of lock when meeting the requirements.
2, a kind of coded lock mechanism according to claim 1, it is characterized by: by CPU, internal memory, USB controller/transceiver (perhaps SD bus or spi bus visit SD card), infrared transceiver, Flash memory, interrupt control unit, clock circuit, power supply, motor (or electromagnetic valve) and motor (or electromagnetic valve) interface and drive circuit, circuit board etc. constitute lock body, dead bolt is converted to curvilinear motion and moves back and forth and constitute (or constitute by electromagnetic valve is reciprocating) by motor-driven swing-bar mechanism (or by motor driven gear, gear driven tooth bar) etc.; Constitute key by CPU, internal memory, USB controller/transceiver (perhaps with SD bus or spi bus visit SD card), infrared transceiver, Flash memory, interrupt control unit, clock circuit, power supply, circuit board, casing, button; Lock changes the dormancy electricity-saving state over to automatically with key when a very long time no signal is imported; At first the user imports AES and forms key file on the PC PC, and deposit in the USB flash disk (or SD card), USB flash disk (or SD card) is inserted into successively lock body and on the key, lock body and key are finished automatically key are input to task on the Flash memory by carrying out interrupt routine again; (if cost allows, also can be, directly add keyboard on the key and finish the key setting at lock body, perhaps carry out key at needs and finish by the interim external connection keyboard of interfaces such as USB when being provided with, but must guarantee that lock body is identical with on the key key); The button of pressing on the key when unblanking (or locking) sends infrared request by key to lock body, correspondence once asks lock body just to generate one group of random number plain text, then generate ciphertext, and to the key transmission in the past by infrared rays, after key is received ciphertext, owing to adopt symmetric cryptographic technique with lock body, key is carried out deciphering and is generated expressly; Another key is set on key and lock body more simultaneously, perhaps utilize above-mentioned existing key that on the key plaintext is communicated encryption, the new ciphertext that key is expressly become by communication encryption except that transmission, also the communication encryption algorithm information that adopts to be sent to the other side in the lump when lock body is communicated by letter; The encryption number of times of communication encryption and choosing of specific algorithm: encrypting number of times can be (as only encrypting 1 time or twice) of fixed value, also picked at random is encrypted number of times (〉=1), the concrete again algorithm (picked at random AES in key) of determining each encryption after the encryption number of times is determined; Choosing of the encryption element of communication encryption: encrypt for the first time and must guarantee that all elements all encrypt, having encrypted for the second time can be only to the part aes encryption in the plaintext, at first determine to select several objects, in the closed interval [1, the total number of AES in the key] middle picked at random, determine respectively again whom each is to liking; New ciphertext that lock body will receive and communication encryption algorithm information carry out the plaintext before backwards calculation deciphering is reduced into communication encryption, compare with the plaintext of the original generation of lock body, are waiting for one section random time t when identical
1After, transmit control signal to motor or solenoid valve interface circuit, make motor or electromagnetic valve produce action; If it is different, make variable yanshi=yanshi+1 (yanshi is initialized as 0), after this lock body also can carry out several times again, and unlocking cipher compares, as password bad still, still carry out yanshi=yanshi+1, when reaching limited number of times (as 10 times) rear locking, yanshi enters the time-delay state, no longer extraneous request is reacted to lock body, hardware clock circuit sends time interrupt requests to CPU at set intervals, check whether timing (as: 30 minutes or two seconds) arrives software timer, if to just carrying out clear 0 task of yanshi, this moment, lock body can respond extraneous request; Because ciphertext itself encrypts,, also can communicate encryption again, if communicate the same literary composition of stating clearly of encryption method so can communicate encryption again when propagating; Above-mentioned infrared component and function should be changed accordingly when wireless technologys such as employing bluetooth or radio; As long as the mains supply outage, the hard interruption that priority is the highest is saved in the nonvolatile memory after making yanshi=yanshi+1 again, when the SRAM that adopts the lithium electricity makes internal memory, also should make yanshi=yanshi+1 during outage; In order to prevent that the thief from leaping in through the window, can follow one's inclinations behind the indoor replacing key and open the door, can identifying code be set in the front of key file, as * * * 8822666*** etc., just can deposit the algorithm in the key on the lock body after having only identifying code correct, also reconfigurable identifying code of while is as * * * 8822666****8377222***, wherein 8822666 is former identifying code, and 8377222 is new identifying code.
3, coded lock anti-other people change the method for password, it is characterized by: before change password or key, lock body is verified identifying code correctness earlier, after identifying code was correct, lock body just can storage key or password, just can revise identifying code once more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710104325 CN101067358A (en) | 2007-03-20 | 2007-05-07 | Trick lock mechanism |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710089296.9 | 2007-03-20 | ||
| CN 200710089296 CN101021112A (en) | 2007-03-20 | 2007-03-20 | Trick lock mechanism |
| CN 200710104325 CN101067358A (en) | 2007-03-20 | 2007-05-07 | Trick lock mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101067358A true CN101067358A (en) | 2007-11-07 |
Family
ID=38880033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710104325 Pending CN101067358A (en) | 2007-03-20 | 2007-05-07 | Trick lock mechanism |
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| CN (1) | CN101067358A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793115A (en) * | 2009-12-20 | 2010-08-04 | 姜君凯 | Electronic lock and key and workflow control |
| CN102176227A (en) * | 2011-02-17 | 2011-09-07 | 金畬 | Signing testifying method and auxiliary signing testifying system |
| CN102404068A (en) * | 2010-09-09 | 2012-04-04 | 张华轩 | Secondary encryption/decryption method |
| CN103593892A (en) * | 2013-11-06 | 2014-02-19 | 天津大学 | Challenge response and symmetrical encryption based electronic lock unlocking method |
| CN104331961A (en) * | 2014-10-23 | 2015-02-04 | 广东必达保安系统有限公司 | Cabinet lock capable of copying set information |
| CN105069881A (en) * | 2015-08-12 | 2015-11-18 | 广东文城科技发展有限公司 | Passive intelligent lock based on NFC (near field communication), Bluetooth and password two-way dynamic authentication |
| CN105184929A (en) * | 2015-09-30 | 2015-12-23 | 深圳市章陈融通科技有限公司 | Intelligent door lock control method and device |
| CN105184930A (en) * | 2015-09-30 | 2015-12-23 | 深圳市章陈融通科技有限公司 | Control method and device of intelligent primary and secondary locks |
| CN106209811A (en) * | 2016-07-04 | 2016-12-07 | 福州米立科技有限公司 | Bluetooth equipment secure log auth method and device |
| CN106934259A (en) * | 2017-02-28 | 2017-07-07 | 北京深思数盾科技股份有限公司 | The method of production information safety device, production equipment and system |
| CN108650214A (en) * | 2018-03-16 | 2018-10-12 | 交通银行股份有限公司 | The anti-method and device of going beyond one's commission of dynamic page encryption |
| CN109281545A (en) * | 2017-07-19 | 2019-01-29 | 雅帝科技股份有限公司 | Operate easy electronic lock |
| CN111080872A (en) * | 2019-12-18 | 2020-04-28 | 中山市榄通五金有限公司 | Networking-free remote authorization unlocking system and method |
| CN111818377A (en) * | 2020-07-09 | 2020-10-23 | 华为技术有限公司 | Control method of multimedia unit, electronic equipment and remote control device |
| CN113240831A (en) * | 2021-04-13 | 2021-08-10 | 常州瑞阳电装有限公司 | Identity information input unlocking circuit of code-free key of locomotive |
-
2007
- 2007-05-07 CN CN 200710104325 patent/CN101067358A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793115A (en) * | 2009-12-20 | 2010-08-04 | 姜君凯 | Electronic lock and key and workflow control |
| CN102404068A (en) * | 2010-09-09 | 2012-04-04 | 张华轩 | Secondary encryption/decryption method |
| CN102176227A (en) * | 2011-02-17 | 2011-09-07 | 金畬 | Signing testifying method and auxiliary signing testifying system |
| CN102176227B (en) * | 2011-02-17 | 2014-03-19 | 金畬 | Signing testifying method and auxiliary signing testifying system |
| CN103593892A (en) * | 2013-11-06 | 2014-02-19 | 天津大学 | Challenge response and symmetrical encryption based electronic lock unlocking method |
| CN104331961A (en) * | 2014-10-23 | 2015-02-04 | 广东必达保安系统有限公司 | Cabinet lock capable of copying set information |
| CN105069881A (en) * | 2015-08-12 | 2015-11-18 | 广东文城科技发展有限公司 | Passive intelligent lock based on NFC (near field communication), Bluetooth and password two-way dynamic authentication |
| CN105184930B (en) * | 2015-09-30 | 2018-09-14 | 深圳市章陈融通科技有限公司 | A kind of intelligence primary and secondary lock control method and device |
| CN105184929A (en) * | 2015-09-30 | 2015-12-23 | 深圳市章陈融通科技有限公司 | Intelligent door lock control method and device |
| CN105184930A (en) * | 2015-09-30 | 2015-12-23 | 深圳市章陈融通科技有限公司 | Control method and device of intelligent primary and secondary locks |
| CN105184929B (en) * | 2015-09-30 | 2018-09-14 | 深圳市章陈融通科技有限公司 | Intelligent door lock control method and device |
| CN106209811A (en) * | 2016-07-04 | 2016-12-07 | 福州米立科技有限公司 | Bluetooth equipment secure log auth method and device |
| CN106934259A (en) * | 2017-02-28 | 2017-07-07 | 北京深思数盾科技股份有限公司 | The method of production information safety device, production equipment and system |
| CN106934259B (en) * | 2017-02-28 | 2020-07-10 | 北京深思数盾科技股份有限公司 | Method for producing information security device, production equipment and system |
| CN109281545A (en) * | 2017-07-19 | 2019-01-29 | 雅帝科技股份有限公司 | Operate easy electronic lock |
| CN108650214A (en) * | 2018-03-16 | 2018-10-12 | 交通银行股份有限公司 | The anti-method and device of going beyond one's commission of dynamic page encryption |
| CN108650214B (en) * | 2018-03-16 | 2021-09-17 | 交通银行股份有限公司 | Dynamic page encryption anti-unauthorized method and device |
| CN111080872A (en) * | 2019-12-18 | 2020-04-28 | 中山市榄通五金有限公司 | Networking-free remote authorization unlocking system and method |
| CN111818377A (en) * | 2020-07-09 | 2020-10-23 | 华为技术有限公司 | Control method of multimedia unit, electronic equipment and remote control device |
| CN113240831A (en) * | 2021-04-13 | 2021-08-10 | 常州瑞阳电装有限公司 | Identity information input unlocking circuit of code-free key of locomotive |
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Open date: 20071107 |