TWM448543U - ZigBee-based chaotic cipher lock - Google Patents

Description

ZigBee-based chaotic password lock

This creation is about a ZigBee-based chaotic cipher lock, especially based on a Zigbee wireless communication technology, and based on the chaotic algorithm, using the unpredictable characteristics of chaos, the chaotic variable elements are made into Chaotic password lock for chaotic passwords.

With the development and evolution of society, the anti-theft mechanism has always been a very important issue in people's lives. Among them, the anti-theft tool that is closest to human life, the first to push "lock". The evolution of locks, from the early mechanical locks to today's electronic locks, its reliability is constantly improving. Since the mechanical lock is easily opened by the technology, the mechanical lock is gradually replaced by the electronic lock. Moreover, with the development of electronic technology and the advancement of technology, the convenience of electronic locks, anti-technical opening functions and intelligent management functions are all incomparable with mechanical locks.

Most of the electronic locks currently used in the market use radio frequency identification (RFID) or fingerprint recognition. Among them, the wireless transmission channel of the RFID lock has high tolerance to environmental changes and has basic encryption capability. However, its channel encryption and verification mechanism is not complete enough, making it easy to be recorded, and it is less able to prevent thieves from detecting and attacking. Therefore, RFID locks cannot enter the market completely. The fingerprint identification lock is unique, others can't copy and lock, and it is very easy to carry. Its security is high, and the key can't be copied, but the system must have strong memory ability, and the sensing panel is easily damaged and dirt, finger The placement position should also be fixed. If the deviation exceeds a certain range, the system may not be able to distinguish.

As mentioned above, the creator of this creation thinks about and designs a password lock. After many years of painstaking research, it aims to improve the lack of existing technology and enhance the implementation and utilization of the industry.

In view of the above-mentioned problems of the prior art, the purpose of the present invention is to provide a chaotic variable based on the Zigbee wireless communication technology and based on the chaotic algorithm, using the unpredictable characteristics of chaos. Chaotic password locks to solve the problem that the conventional locks are easily cracked by thieves and can improve security. According to the purpose of the present invention, a ZigBee-based chaotic code lock is proposed, which comprises a lock body device, a key device and an input device. The lock body device randomly generates a plurality of preset codes by a chaotic algorithm, and generates a plurality of confirmation codes corresponding to the preset codes by a chaotic algorithm. The key device is connected to the lock device by ZigBee wireless transmission mode, and the key device generates an identification code corresponding to the preset code according to one of the preset codes by a chaotic algorithm. The input device is electrically connected to the lock body device, and the input device transmits the security code corresponding to the identification code to the lock body device. Wherein, the key device transmits the identification code to the lock body device by using the ZigBee wireless transmission mode, and when the lock body device determines that the identification code meets one of the corresponding preset codes of the lock body device, and the lock body device matches the security code, one of the corresponding codes is met. When the confirmation code is confirmed, the lock body device performs an unlocking operation.

Preferably, the lock body device further comprises a processing module, and the preset codes are randomly generated by a chaotic algorithm.

Preferably, the key device further includes a first wireless transmission module, and the first wireless transmission module transmits the identification code to the lock body device.

Preferably, the lock device further includes a second wireless transmission module electrically connected to the processing module, and the second wireless transmission module receives the identification code transmitted by the first wireless transmission module.

Preferably, the lock body device further comprises a driving module electrically connected to the processing module, and when the lock body device determines that the identification code meets one of the corresponding preset codes of the lock body device, and the lock body device compares the security code When the corresponding confirmation code is met, the processing module generates an unlock signal, and the driving module can drive the lock device to perform the unlocking operation according to the unlock signal.

Preferably, the lock body device further comprises an unlocking module electrically connected to the driving module, and the driving module can drive the unlocking module according to the unlocking signal to perform the unlocking action.

Preferably, the unlocking module further comprises an alerting unit electrically connected to the processing module. when the locking device does not match the corresponding security code of the security code, the processing module generates the warning signal, and the driving module The warning unit can be driven to issue a warning message according to the warning signal.

Preferably, the lock body device further includes a display module electrically connected to the processing module to display the security code.

Preferably, the lock body device further includes a memory module electrically connected to the processing module to store the preset codes and the confirmation codes.

As stated above, this creation is a ZigBee-based chaotic cipher lock that can have one or more of the following advantages:

(1) The chaotic encryption based on ZigBee is chaotic encryption based on chaotic algorithm, which makes it have a huge key space, so that even if the thief invests a lot of time, the unlocking action cannot be completed.

(2) The ZigBee-based chaotic code lock is identified by double chaotic password, thereby effectively improving the security performance of the electronic lock.

(3) This ZigBee-based chaotic cipher lock combines the application of Zigbee wireless communication technology and chaotic algorithm to enhance the user-friendly and management efficiency.

The embodiment of the ZigBee-based chaotic cipher lock according to the present invention will be described below with reference to the related drawings. For the sake of understanding, the same components in the following embodiments are denoted by the same reference numerals.

Please refer to FIG. 1 , which is a schematic diagram of an embodiment of a ZigBee-based chaotic cipher lock. As shown, the chaotic code lock 1 includes a lock body device 11, a key device 12, and an input device 13. The lock body device 11 randomly generates a plurality of preset codes by a chaotic algorithm, and generates a plurality of confirmation codes corresponding to the preset codes by a chaotic algorithm. The key device 12 is connected to the lock device 11 by ZigBee wireless transmission, and the key device 12 generates an identification code corresponding to the preset code according to one of the preset codes by a chaotic algorithm. The input device 13 is electrically connected to the lock body device 11, and the input device 13 transmits a security code corresponding to the identification code to the lock body device 11. The key device 12 transmits the identification code to the lock body device 11 in the ZigBee wireless transmission mode, and when the lock device 11 determines that the identification code meets one of the corresponding preset codes of the lock body device 11, and the lock body device 11 is safely matched. When the code conforms to one of the corresponding confirmation codes, the lock body device 11 performs an unlocking operation.

In the above, the lock body device 11 preferably further includes a processing module 111 for randomly generating the preset codes 1111 by a chaotic algorithm. The key device 12 preferably further includes a first wireless transmission module 121, and the first wireless transmission module 121 transmits the identification code 1211 to the lock body device 11. Moreover, the lock device 11 preferably further includes a second wireless transmission module 112 electrically connected to the processing module 111, and the second wireless transmission module 112 receives the identification code 1211 transmitted by the first wireless transmission module 121.

Furthermore, the lock device 11 preferably further includes a driving module 113 electrically connected to the processing module 111. When the lock device 11 determines that the identification code 1211 meets one of the corresponding preset codes 1111 of the lock device, When the lock device 11 matches the security code 1311 to the corresponding confirmation code 1112, the processing module 111 generates the unlock signal 1113, and the drive module 113 can drive the lock device 11 to perform the unlocking operation according to the unlock signal 1113. Moreover, the lock device 11 preferably further includes an unlocking module 114 electrically connected to the driving module 113. The driving module 113 can drive the unlocking module 114 according to the unlocking signal 1113 to perform an unlocking operation. The unlocking module 114 preferably further includes an alerting unit 1141 electrically connected to the processing module 111. When the latching device 11 does not match the security code 1311 and the corresponding one of the confirmation codes 1112, the processing module 111 generates The warning signal 1114, the driving module 113 can drive the warning unit 1141 to issue a warning message according to the warning signal 1114.

Moreover, the lock device 11 preferably further includes a display module 115 and a memory module 116. The display module 115 is electrically connected to the processing module 111 to display the security code 1311. The memory module 116 is electrically connected to the processing module 111. To store the preset code 1111 and the confirmation codes 1112.

In the above, the preset code 1111, the confirmation code 1112 and the identification code 1211 of the present creation may be generated by a chaotic algorithm. The processing module 111 can generate one of the confirmation codes 1112 according to the security code 1311 by the chaotic algorithm. Moreover, the key device 12 can generate the identification code 1211 according to one of the preset 1111 codes by the chaotic algorithm.

Specifically, the processing module 111 of the lock device 11 of the present invention first randomly generates a plurality of preset codes 1111 by using a chaotic algorithm, and the key device 12 generates a key body according to one of the preset codes 1111 by using a chaotic algorithm. Identification code 1211 of device 12. Among them, the ZigBee-based chaotic code lock of the present invention may also randomly generate the identification code 1211 by a plurality of key device 12s by a chaotic algorithm, and then the chaos algorithm according to the chaotic algorithm according to the plurality of identification codes 1211. A plurality of preset codes 1111 are generated. Then, a security code 1311 corresponding to the identification code 1211 is set in the processing module 111, and the processing module 111 converts the security code 1311 into a confirmation code 1112 by using a chaotic algorithm, and the confirmation code 1112 also corresponds to the identification code 1211. Default code 1111.

When the user operates the chaotic password lock 1 of the present creation, the key device 12 is first brought close to the lock body device 11. At this time, the first wireless transmission module 121 of the key device 12 and the second wireless transmission module 112 of the lock device 11 establish a ZigBee wireless transmission channel, and the key device 12 uses the first wireless transmission module 121 to identify the identification code. 1211 is transmitted to the second wireless transmission module 112. After receiving the identification code 1211, the second wireless transmission module 112 transmits the identification code 1211 to the processing module 111. The processing module 111 transmits the identification code 1211 and the plurality of preset codes 1111. Compare. When the processing module 111 determines that the identification code 1211 meets one of the corresponding preset codes 1111, the user must perform a confirmation operation of the next confirmation code 1112. On the other hand, when the processing module 111 determines that there is no preset code 1111 corresponding to the identification code 1211 in the plurality of preset codes 1111, the user cannot perform the confirmation operation of the confirmation code 1112. Therefore, the user cannot open the chaos of the creation. Password lock 1.

When the user performs the confirmation operation of the confirmation code 1112, the user transmits the security code 1311 to the processing module 111 of the lock body device 11 via the input device 13. At this time, the processing module 111 compares the security code 1311 with the confirmation code 1112 corresponding to the preset code 1111 that can correspond to the identification code 1211. When the processing module 111 determines that the security code 1311 is consistent with the confirmation code 1112, the processing module 111 generates the unlocking signal 1113. After the driving module 113 receives the unlocking signal 1113, the driving module 113 drives the unlocking module according to the unlocking signal 1113. 114 performs the unlocking action of the chaotic password lock 1 of the creation. If the processing module 111 determines that the security code 1311 does not match the confirmation code 1112, the processing module 111 generates the warning signal 1114, and the driving module 113 can drive the warning unit 1141 to issue a warning message according to the warning signal 1114 to notify the user of the security code. 1311 error. The warning message can be sound, light or a combination thereof.

The chaotic password lock 1 of this creation is completely protected against the thief's crack by the identification of the double chaotic password. The ZigBee-based chaotic cipher lock of this creation also enhances the use and management efficiency of humanization by combining the application of Zigbee wireless communication technology and chaos algorithm.

Please refer to FIG. 2 to FIG. 4 , which are the first to third schematic diagrams of the dispersion characteristics of the password of the ZigBee-based chaotic code lock based on the creation. As shown, the ZigBee-based chaotic to lock computer simulation of x _n x _n-1, y _n to y _n-1, and the dispersion characteristics of the z _n z _n-1 of this writing, the results are Figures 3 through 5 are sufficient to show their cluttered and unpredictable characteristics. Therefore, the ZigBee-based chaotic cipher lock of this creation uses the chaotic algorithm to generate the preset code 1111, the confirmation code 1112 and the identification code 1211 to ensure the security of the ZigBee-based chaotic cipher lock.

Please refer to Figure 5, which is a 3D trajectory diagram of the chaotic algorithm of chaotic code lock based on ZigBee. As shown in the figure, the chaotic algorithm of this creation has the following characteristics: (a) It is highly sensitive to the initial value and the variation of the parameters. (b) Characteristic trajectories of global bounded and local unstable. (c) Directing the Lyapunov exponent. (d) Dynamic trajectories have unpredictable characteristics. Therefore, the ZigBee-based chaotic code lock based on this creation uses chaotic algorithm to generate chaotic passwords to improve encryption security. The chaotic algorithm of this creation is:
, (1a)
, (1b)
, (1c)

Where a = 0.2, b = 0.2, c = 5.7, computer simulation of (1a), (1b) and (1c) with MATLAB, the simulation results shown in Figure 4, where x (0) = 0.11, y ( 0) = 0.28, z (0) = 0.33. Because the trajectory is spiral, it is also called Spiral Attractor.

This creation further clarifies the use of chaotic algorithms as the basis of chaotic ciphers to solve the problem that the conventional locks are easily cracked by thieves and improve security.

According to the Federal Information Processing Standards Publication (FIPS Pub) 140-1, a good set of random passwords must pass the single bit test (Monobit), poker (Poker), and serial (Runs). And four kinds of statistical tests such as Long run. Through the computer statistical analysis of the chaotic algorithm of this creation, all four tests can be passed, and the results are shown in Table 1.

Table 1, FIPS PUB 140-1 test results

Among them, the correlation coefficient (Correlation Coefficient, γ) of the chaotic algorithm of this creation represents the intensity of the linear relationship between X and Y, and the positive and negative signs of γ indicate the relevant direction, and the value must be between ±1. When the γ value is closer to ±1, it indicates that the correlation degree is stronger, and the closer to 0, the weaker the linear relationship between the two variables is, and the more difficult it is to predict each other. The calculation formula of the correlation system γ (γ) is as follows:
(2)

among them, Indicates that the sample has changed altogether; and The sample standard deviation of X and Y respectively. The statistical analysis results in Table 2 show that the correlation coefficient (γ) of the chaotic algorithm of this creation has excellent performance.

Table 2. Correlation coefficients of chaotic passwords in this creation

The chaotic algorithm of this creation has a large enough key space, and even if the thief invests a lot of time and material resources, the original data cannot be obtained correctly. The sensitive variation of the chaotic algorithm of this creation is:
x ₀ =10 ^-15 , y ₀ =10 ^-15 , z ₀ =10 ^-15 ;

Therefore, the key space of the ZigBee-based chaotic cipher lock of this creation can reach 10 ⁴⁵ .

Please refer to FIG. 6 , which is a flow chart of the password encryption process of the ZigBee-based chaotic code lock based on the creation. As shown in the figure, the ZigBee-based chaotic password lock password encryption production of this creation includes the following steps:

(S21) constructing a chaotic algorithm in the processing module and the key device;

(S22) the processing module randomly generates a plurality of preset codes by using a chaotic algorithm;

(S23) the key device generates an identification code according to one of the preset codes by a chaotic algorithm;

(S24) establishing a security code between the key device and the lock device;

(S25) writing an identification program for identifying the code between the processing module and the key device;

(S26) writing an identification program for the security code between the key device and the lock device;

(S27) Write an execution program for the unlocking and alerting functions;

(S28) integrating an input device, a processing module, a key device, a display module, a driving module, an unlocking module, and an alerting unit;

(S29) Establishing a ZigBee wireless transmission channel between the first wireless transmission module and the second wireless transmission module, and testing the integrated function of the ZigBee-based chaotic password lock of the present invention.

The ZigBee-based chaotic code lock of this creation completes the creation of the ZigBee-based chaotic password lock password encryption by the above-mentioned production process.

Based on the above, the ZigBee-based chaotic code lock is used as the basis of chaotic cipher, and the combination of the initial value of the algorithm is converted into the preset code, identification code, and confirmation code to achieve double identification. Purpose, and completely prevent the thief's crack to improve the security of the password lock. Even if the thief invests a lot of time, the unlocking action cannot be completed. The ZigBee-based chaotic cipher lock of this creation can enhance the use and management efficiency of humanization by combining the application of Zigbee wireless communication technology and chaos algorithm.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of this creation shall be included in the scope of the appended patent application.

1‧‧‧Chaotic password lock
11‧‧‧Lock device
111‧‧‧Processing module
1111‧‧‧Default code
1112‧‧‧Confirmation code
1113‧‧‧Unlocking signal
1114‧‧‧ warning signal
112‧‧‧Second wireless transmission module
113‧‧‧Drive Module
114‧‧‧ unlocking module
1141‧‧‧Warning unit
115‧‧‧Display module
116‧‧‧Memory Module
12‧‧‧Key device
121‧‧‧First wireless transmission module
1211‧‧‧ ID
13‧‧‧Input device
1311‧‧‧ Security Code
S21~S29‧‧‧Steps

Figure 1 is a schematic diagram of an embodiment of a ZigBee-based chaotic cipher lock of the present invention;
The second figure is the first schematic diagram of the dispersion characteristics of the password of the ZigBee-based chaotic code lock based on the creation;
The third figure is the second schematic diagram of the dispersion characteristics of the password of the ZigBee-based chaotic code lock based on the creation;
The fourth figure is the third schematic diagram of the dispersion characteristics of the password of the ZigBee-based chaotic code lock based on the creation;
The fifth picture is a 3D trajectory diagram of the ZigBee-based chaotic cryptography chaos algorithm; and the sixth picture is the flow chart of the cryptographic encryption of the ZigBee-based chaotic cipher lock.

1‧‧‧Chaotic password lock

11‧‧‧Lock device

111‧‧‧Processing module

1111‧‧‧Default code

1112‧‧‧Confirmation code

1113‧‧‧Unlocking signal

1114‧‧‧ warning signal

112‧‧‧Second wireless transmission module

113‧‧‧Drive Module

114‧‧‧ unlocking module

1141‧‧‧Warning unit

115‧‧‧Display module

116‧‧‧Memory Module

12‧‧‧Key device

121‧‧‧First wireless transmission module

1211‧‧‧ ID

13‧‧‧Input device

1311‧‧‧ Security Code

Claims (9)

A ZigBee-based chaotic cipher lock, which includes:
A lock body device randomly generates a plurality of preset codes by a chaotic algorithm, and generates a plurality of confirmation codes corresponding to the preset codes by a chaotic algorithm;
a key device is connected to the lock device in a ZigBee wireless transmission manner, and the key device generates a pair of identification codes corresponding to the preset code according to one of the preset codes by a chaotic algorithm; and an input device, The electrical device is electrically connected to the lock body device, and the input device transmits a pair of security codes corresponding to the identification code to the lock body device;
The key device transmits the identification code to the lock device in the ZigBee wireless transmission mode, and when the lock device determines that the identification code meets one of the preset codes corresponding to the lock device, and the lock body When the device matches the confirmation code corresponding to the security code, the lock device performs an unlocking operation. The chaotic code lock according to claim 1, wherein the lock body device further comprises a processing module, and the preset codes are randomly generated by a chaotic algorithm. The chaotic code lock of claim 2, wherein the key device further comprises a first wireless transmission module, and the first wireless transmission module transmits the identification code to the lock device. The chaotic code lock of claim 3, wherein the lock device further includes a second wireless transmission module electrically connected to the processing module, and the second wireless transmission module receives the first wireless The identification code transmitted by the transmission module. The chaotic code lock according to claim 2, wherein the lock body device further comprises a driving module electrically connected to the processing module, and when the lock device determines that the identification code conforms to the lock device The processing module generates an unlocking signal, and the driving module drives the lock body according to the unlocking signal when one of the preset codes is corresponding to the security code and the security code matches one of the corresponding confirmation codes. The device performs the unlocking action. The chaotic code lock according to claim 5, wherein the lock body device further comprises an unlocking module electrically connected to the driving module, and the driving module drives the unlocking module according to the unlocking signal to perform the Unlocking action. The chaotic code lock according to claim 6, wherein the unlocking module further comprises a warning unit electrically connected to the processing module, wherein the lock device corresponds to the security code and one of the security codes When the confirmation code does not match, the processing module generates a warning signal, and the driving module drives the warning unit to issue a warning message according to the warning signal. The chaotic code lock of claim 2, wherein the lock body device further comprises a display module electrically connected to the processing module to display the security code. The chaotic code lock of claim 2, wherein the lock body device further comprises a memory module electrically connected to the processing module to store the preset codes and the confirmation codes.