CN209803866U

CN209803866U - Hidden-writing coded lock

Info

Publication number: CN209803866U
Application number: CN201920565001.9U
Authority: CN
Inventors: 刘一鸣; 李庆利; 王瞻
Original assignee: East China Normal University
Current assignee: East China Normal University
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2019-12-17
Anticipated expiration: 2029-04-24

Abstract

The utility model discloses a steganography coded lock, which comprises a processor module, a random number generation module, a display module and a keyboard module, wherein the processor module is respectively connected with the random number generation module, the display module and the keyboard module; the display module is composed of a seven-segment digital tube module and an LED dot matrix module. The utility model discloses a random password mapping that will generate is the motion mode of character, and the people who only knows the mapping mode in advance can decode and input the password and carry out the unblock according to the motion condition of character in the dot matrix. The utility model has the advantages of simple manufacture, convenient to use, password are hidden and the security degree such as anti camera record is higher, have improved the security performance of trick lock.

Description

Hidden-writing coded lock

Technical Field

the utility model relates to an encrypt decryption and information steganography technical field, specifically an adopt password steganography to encrypt and decrypt general type trick lock.

Background

the coded lock is an indispensable important part for protecting personal articles in life, the coded lock can be divided into a mechanical coded lock and an electronic coded lock, the type and the safety degree of the electronic coded lock are continuously improved due to the programmable characteristic of the electronic coded lock, and the electronic coded lock is more and more widely applied along with the continuous development of the internet of things.

In information cryptography, a technology called data steganography technology is available, which adds a large amount of redundancy into information to confuse real information and redundancy with others, and only a person who knows a password hiding method can find out and decipher a password, for example, a 01 bit stream can be hidden by using the gray scale of a picture, but the picture itself does not look changed, but the original bit stream can be obtained by inverse transformation, and for example, a method of literary science can be used to hide information in a book by using the existence of a specific word as the basis for the judgment of 01. The advantage of steganography is that on one hand, the possibility that others observe data containing the password can be reduced, namely, the carrier of the password is not easy to be concerned, and on the other hand, the difficulty of cracking of the password can be improved through redundancy in different forms and dimensions.

therefore, the real password information can be hidden by utilizing the redundant information of the image by utilizing the steganography technology around the LED dot matrix display, and the scheme of randomly generating the password is combined, so that even if the password is observed by others when being input, the password cannot be cracked by others under the condition of not knowing the password hiding position and the deciphering principle, and the password lock has higher safety performance compared with the common password lock for directly inputting the password.

SUMMERY OF THE UTILITY MODEL

the utility model aims at the not enough and hidden trick lock that provides of prior art, the utility model discloses a random number produces the module and produces random password under processor module's control, and according to predetermineeing the motion state that the mapping mode is the character dot matrix with the password mapping, then show on the LED dot matrix, the unblock people need know predetermined mapping mode and explain the motion state of character dot matrix for the password, input the password through the button module, if the password is the same with the random password that produces, then seven sections charactron modules show the successful information of unblock, and carry out the unblock, otherwise, then show unblock failure information. The utility model discloses a password check-up mode is the cyclic shift check-up, as long as the order satisfies around the password can accomplish the unblock. The utility model has the advantages of simple manufacture and convenient use, and improves the safety performance of the coded lock.

Realize the utility model discloses the concrete technical scheme of purpose is:

A kind of steganography trick lock, the characteristic is that this trick lock includes processor module, random number produces module, display module and keyboard module, the said processor module is connected with random number produces module, display module and keyboard module separately; wherein:

the display module consists of a seven-segment digital tube module and an LED dot matrix module;

The seven-segment digital tube module is provided with a pin VCC, a pin GND, a pin CS, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7;

The LED dot matrix module is provided with a pin VCC, a pin GND, a pin CS, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7;

The random number generation module is provided with a pin VCC, a pin GND, a pin CS, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7;

The keyboard module is provided with a pin VCC, a pin GND, a pin CS, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7;

the processor module is provided with a pin VCC, a pin GND, a pin CS0, a pin CS1, a pin CS2, a pin CS3, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7, wherein the pin VCC, the pin GND, the pin A0, the pin A1, the pin D0, the pin D1, the pin D2, the pin D3, the pin D4, the pin D5, the pin D6 and the pin D7 are respectively and correspondingly connected with a random number generation module, a seven-segment digital tube module, a LED dot matrix module and a keyboard module at a pin VCC, a pin GND, a0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7; the pin CS0 is correspondingly connected with the pin CS of the random number generation module; the pin CS1 is correspondingly connected with the pin CS of the seven-segment digital tube module; the pin CS2 is correspondingly connected with the pin CS of the LED dot matrix module; the pin CS3 is correspondingly connected with the pin CS of the keyboard module.

The utility model discloses a random number produces the module and produces random password under processor module's control, and according to predetermineeing the motion state that the mapping mode maps the password to the character dot matrix, then show on the LED dot matrix, the unblock people need know predetermined mapping mode and explain the motion state of character dot matrix for the password, input the password through the button module, if the password is the same with the random password that produces, then seven sections charactron module display unblock success information, and carry out the unblock, otherwise, then show unblock failure information. The utility model discloses a password check-up mode is the cyclic shift check-up, as long as the order satisfies around the password can accomplish the unblock. The utility model has the advantages of simple manufacture and convenient use, and improves the safety performance of the coded lock.

the utility model discloses a steganography mode carries out the secondary to the password and encrypts, and the password adopts the random generation password to map the motion mode that becomes the character in the LED dot matrix, consequently only know the talent of mapping mode and can decode and input the password and accomplish the unblock according to character motion mode. Through the mode, the password stealing behavior that passwords are stolen and unlocked through modes such as shooting and the like can be effectively avoided, and the safety of the password lock is protected.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a schematic view of a processor module according to the present invention;

FIG. 3 is a schematic diagram of a random number generator module of the present invention;

FIG. 4 is a schematic view of the seven-segment digital tube module of the present invention;

Fig. 5 is a schematic diagram of an LED dot matrix module according to the present invention;

Fig. 6 is a schematic diagram of the keyboard module of the present invention.

Detailed Description

the following describes the embodiments and the operation principle of the present invention in detail with reference to the accompanying drawings.

Referring to fig. 1, the present invention includes a processor module 1, a random number generation module 2, a display module 3, and a keyboard module 4; the processor module 1 is respectively connected with the random number generation module 2, the display module 3 and the keyboard module 4; wherein: the display module 3 is composed of a seven-segment digital tube module 5 and an LED dot matrix module 6. The utility model discloses processor module 1 adopts 8086 processor module.

Referring to fig. 2-6, the seven-segment transistor module 5 is provided with a pin VCC, a pin GND, a pin CS, a pin a0, a pin a1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6, and a pin D7.

The LED dot matrix module 6 is provided with a pin VCC, a pin GND, a pin CS, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7.

The random number generation module 2 is provided with a pin VCC, a pin GND, a pin CS, a pin a0, a pin a1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6, and a pin D7.

The keyboard module 4 is provided with a pin VCC, a pin GND, a pin CS, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7.

The 8086 processor module 1 is provided with a pin VCC, a pin GND, a pin CS0, a pin CS1, a pin CS2, a pin CS3, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7, wherein the pin VCC, the pin GND, the pin A0, the pin A1, the pin D0, the pin D1, the pin D2, the pin D3, the pin D4, the pin D5, the pin D6 and the pin D7 are respectively connected with the pins VCC, the pin A0, the pin A1, the pin D1 and the keyboard module 4 of the random number generation module 2, the seven-segment digital tube module 5, the LED dot matrix module 6 and the keyboard module 4, the pins D1, the pins CS1 and the pins CS1 are connected with the pins and the pins CS and the pins of the pin generation module 72 are connected with the pins corresponding to the pins of the pin generation module 1, the pin CS3 is correspondingly connected to the pin CS of the keyboard module 3.

Examples

The utility model discloses an use like this:

the utility model discloses an adopt the steganography mode to convert the password into character motion for the trick lock is difficult to steal through modes such as video recording, has stronger security.

Referring to fig. 1, the random number generation module 2 counts by using a built-in counter and transmits the count to the 8086 processor module, and the 8086 processor module obtains 8-bit 0-8 random passwords according to the count value; the seven-segment digital tube module 5 is used for displaying human-computer interface interaction information; the LED dot matrix module 6 is used for displaying character movement, and a user can obtain a password according to the movement condition of the character; the keyboard module 3 bears the input function of a user and mainly comprises a reset key and a confirmation key, wherein the reset key can regenerate a random password, and the confirmation key can confirm the currently input password; the 8086 processor module 1 is connected with and controls the random number generation module 2, the seven-segment nixie tube module 5, the LED dot matrix module 6 and the keyboard module 4, and is responsible for mapping 8-bit passwords into a movement mode of characters and proofreading the passwords.

after the LED dot matrix keyboard is started, firstly, a password generation process is started, a reset key in the keyboard module is clicked, the random number generation module generates 8-bit 0-8 random generation passwords, the random passwords are mapped into periodic movement of characters according to a mapping mode known by a user and are displayed on the LED dot matrix module. Then, the decoding process can be started, firstly, the seven-segment digital tube displays a code field, a user observes the motion state of characters in the LED dot matrix module to crack the password, and the user clicks a confirmation key in the keyboard module after inputting the password to finish unlocking.

when the keyboard module is used, firstly, a reset key of the keyboard module is clicked, then the 8086 processor module controls the random number generation module to read the value of the built-in counter and modulo 9, and therefore an 8-bit 0-8 random password is generated. The obtained 8-bit password is used for steganography of the motion state of the character according to the mapping relation of 0, 1, 2, 3, 4, 5, 6, 7 and 8, wherein the mapping relation is static, upper right, lower left, upper left and lower left, and then the LED dot matrix display module displays the character and the motion of the character. During decoding, the seven-segment nixie tube displays a 'decode' field to prompt a user to input a password, and then the user analyzes and decodes according to the mapping relation between the random password and the movement to obtain the password for unlocking. In the unlocking process, only a matrix keyboard is used for inputting a password and clicking a confirmation key for inputting, a circular judgment method is adopted when judging whether the input password is equal to the generated random password, namely the password can be judged to be correct as long as the front and back sequence of the password is satisfied, the method is realized by sequentially shifting the input password and the random password for proofreading, if the password is shifted, the proofreading is successful, if the password is shifted for 8 times, the password is still unmatched, the decoding is failed, the failure times are recorded, and if the failure times reach 3 times, the processor is self-locked for 1 minute and the random password is regenerated, so that the password is prevented from being cracked by other people through multiple attempts. And finally, displaying decoding result information, wherein if the decoding is successful, the seven-segment nixie tube displays the 'S', and if the decoding is failed, the seven-segment nixie tube displays the 'F'.

Claims

1. a steganographic coded lock is characterized by comprising a processor module (1), a random number generation module (2), a display module (3) and a keyboard module (4), wherein the processor module (1) is respectively connected with the random number generation module (2), the display module (3) and the keyboard module (4); wherein:

the display module (3) is composed of a seven-segment digital tube module (5) and an LED dot matrix module (6);

the seven-segment digital tube module (5) is provided with a pin VCC, a pin GND, a pin CS, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7;

The LED dot matrix module (6) is provided with a pin VCC, a pin GND, a pin CS, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7;

The random number generation module (2) is provided with a pin VCC, a pin GND, a pin CS, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7;

The keyboard module (4) is provided with a pin VCC, a pin GND, a pin CS, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7;

the processor module (1) is provided with a pin VCC, a pin GND, a pin CS0, a pin CS1, a pin CS2, a pin CS3, a pin A0, a pin A1, a pin D0, a pin D1, a pin D2, a pin D3, a pin D4, a pin D5, a pin D6 and a pin D7, wherein the pin VCC, the pin GND, the pin A0, the pin A1, the pin D0, the pin D1, the pin D2, the pin D3, the pin D4, the pin D5, the pin D6 and the pin D7 are respectively connected with the pins VCC, the pin GND, the pin A0, the pin A1, the pin D0, the pin D1, the pin D2, the pin D3, the pin D4, the pin D5 and the pin D5 in a way corresponding to the dot matrix; the pin CS0 is correspondingly connected with the pin CS of the random number generation module (2); the pin CS1 is correspondingly connected with a pin CS of the seven-segment digital tube module (5); the pin CS2 is correspondingly connected with the pin CS of the LED dot matrix module (6); the pin CS3 is correspondingly connected with the pin CS of the keyboard module (4).