CN109263317B - Stamping method capable of preventing official seal from being forged - Google Patents
Stamping method capable of preventing official seal from being forged Download PDFInfo
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- CN109263317B CN109263317B CN201810928357.4A CN201810928357A CN109263317B CN 109263317 B CN109263317 B CN 109263317B CN 201810928357 A CN201810928357 A CN 201810928357A CN 109263317 B CN109263317 B CN 109263317B
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 36
- 230000008859 change Effects 0.000 claims description 2
- 230000000977 initiatory effect Effects 0.000 claims 1
- 238000005242 forging Methods 0.000 abstract description 2
- 230000006855 networking Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
- B41K1/00—Portable hand-operated devices without means for supporting or locating the articles to be stamped, i.e. hand stamps; Inking devices or other accessories therefor
- B41K1/08—Portable hand-operated devices without means for supporting or locating the articles to be stamped, i.e. hand stamps; Inking devices or other accessories therefor with a flat stamping surface and changeable characters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
- B41K1/00—Portable hand-operated devices without means for supporting or locating the articles to be stamped, i.e. hand stamps; Inking devices or other accessories therefor
- B41K1/36—Details
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/018—Certifying business or products
- G06Q30/0185—Product, service or business identity fraud
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- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
A method for preventing counterfeit official seal from being stamped includes forming seal system by official seal authentication server and encrypted official seal, forming encrypted official seal by encryption authentication circuit and seal with digital code disk on bottom surface, carrying out mutual authentication by official seal authentication server and encrypted official seal first through wireless communication, sending time-limited random number specific to current stamping event to encrypted official seal by official seal authentication server after passing through, enabling value of digital code disk to be consistent with random number by encrypted official seal in set stamping time, judging authenticity of official seal by comparing digest of using official seal event containing random number stored by encrypted official seal with stamping pattern. The invention prevents the counterfeit official seal or the official seal authentication server from being forged by mutual authentication of the encrypted official seal and the official seal authentication server, and adds the random number in the seal pattern to ensure that the seal pattern has uniqueness each time, thereby greatly increasing the difficulty of forging the official seal and thoroughly preventing the occurrence of private official seal carving.
Description
Technical Field
The invention relates to a stamping method capable of effectively preventing illegal molecules from privately engraving a unit official seal and impersonating a unit or company behavior cheating, and belongs to the technical field of stamping devices.
Background
Protecting units or companies from interference with normal economic activity is one of the important tasks of government maintenance on contemporary economic and social fair operation. However, illegal individuals often privately inscribe unit official regulations, impersonate the unit or company to act as cheating, and bring huge economic losses to the unit or company.
At present, the electronic official seal can realize digital signature, and the authenticity of the official seal is ensured. However, there is no method for identifying the authenticity of the seal pattern in the physical official seal which is still used in a large quantity so far. The main defect of the existing physical official seal is that all patterns on the seal, including characters and numbers, are fixed, and although each unit assigns a special person to protect the official seal from being stolen or carved, the occurrence of criminal act of privately carving the official seal cannot be stopped.
Disclosure of Invention
The invention aims at solving the defects of the prior art and provides a stamping method capable of preventing the counterfeit official seal so as to increase the difficulty of the counterfeit official seal and prevent the occurrence of the act of privately engraving the official seal.
The invention is realized by the following technical scheme:
the method can prevent the stamping of the counterfeit official seal, the said method is made up of official seal authentication server and encrypting the official seal and forming the seal system, the said encrypting the official seal includes encrypting authentication circuit and bottom surface and equipped with the seal of the digital code dial, the official seal authentication server and encrypting the official seal to carry on mutual authentication through the wireless communication at first when needing to stamp, send the peculiar time-limited random number of this stamping event to encrypting the official seal by the authentication server of the official seal after authenticating, the encrypting the official seal makes the value of the digital code dial unanimous with random number in the time of stamping presumed, the personnel of stamping can judge the true and false of the official seal through comparing the summary of using the official seal event comprising random number stored by encrypting the official seal with consistency of the pattern of stamping, the concrete stamping step is as follows:
a. the encryption official seal actively initiates a plaintext TCP link, and establishes TCP link communication with an official seal authentication server;
b. the official seal authentication server initiates an identity authentication request of both sides of the digital signature, the encrypted official seal and the official seal authentication server send the information of the respective built-in authorizers to the other side, and mutual identity authentication is completed through comparison;
c. encrypting the official seal to upload the event abstract using the official seal and the signature of the user to the official seal authentication server;
d. the official seal authentication server generates a non-zero random number after receiving the official seal event abstract and the user signature, and encrypts the non-zero random number to transmit the non-zero random number to the encrypted official seal;
e. after receiving the random number, the encrypted official seal stores the random number in an event summary record using the official seal, and drives a digital code disc to change the number of the digital code disc into a number consistent with the random number;
f. stamping by stamping personnel to obtain stamping patterns containing random numbers;
g. the stamping personnel compares the information in the stamping pattern with the summary record of the event using the official seal to confirm the authenticity of the official seal;
h. after the set stamping time is reached, all code disc numbers are changed to 0, and the encrypted official seal is restored to an invalid state.
The encryption authentication circuit comprises a CPU, a touch signature screen, an encryption chip, a mobile phone module, a micro printer and a stepping motor driver, wherein the touch signature screen sends an input port of the CPU with the recorded event abstract of using official seal and a user signature; the encryption chip is connected with the CPU through an SPI interface; the mobile phone module is connected with the CPU through a serial port and exchanges information with the official seal authentication server through a wireless communication network; the micro printer receives and prints the summary record of the using official seal event output by the CPU through the serial port; the stepping motor driver receives the control signal output by the CPU and adjusts the numerical value of the digital code wheel through the stepping motor.
According to the stamping method capable of preventing the official seal from being forged, the encryption authentication circuit further comprises the wifi communication module, the wireless communication module is connected with the CPU through the serial port, and when the mobile phone module cannot be connected with the official seal authentication server through the wireless communication network, the encryption official seal can exchange information with the official seal authentication server through the wifi communication module.
According to the method for preventing the counterfeit official seal from being stamped, the encryption authentication circuit further comprises the wireless communication module, the wireless communication module is connected with the CPU through the serial port, when the encryption official seal cannot be connected to the official seal authentication server through the mobile phone module and the wifi communication module and needs to be stamped, the encryption official seal can be networked with the opposite party official seal through the wireless communication module, company name information is mutually exchanged to verify authenticity, a time-limited random number required by stamping is generated, and after stamping is finished, the encryption official seal uploads the event abstract and the user signature of the current use official seal to the official seal authentication server for storage.
In the anti-counterfeiting seal system, six digital code disks are arranged and are hexadecimal code disks, and a stepping motor driver is arranged on each stepping motor of each digital code disk.
In the anti-counterfeiting seal system, the touch signature screen, the mobile phone module and the micro printer of the encryption authentication circuit are arranged in the same host shell, and the rest parts of the encryption authentication circuit are arranged in the seal.
The anti-counterfeiting seal system is characterized in that the electrical parts arranged in the seal are powered by a battery, and the battery is arranged in a handle of the seal.
According to the anti-counterfeiting seal system, the display is arranged at the top of the seal and is connected with the CPU through the serial port.
The invention prevents the counterfeit official seal or the official seal authentication server from being forged by mutual authentication of the encrypted official seal and the official seal authentication server, and adds the random number in the seal pattern to ensure that the seal pattern has uniqueness each time, thereby greatly increasing the difficulty of forging the official seal and thoroughly preventing the occurrence of private official seal carving.
Drawings
FIG. 1 is a schematic diagram of a stamp system;
FIG. 2 is a schematic diagram of the structure of the stamp;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a bottom view of FIG. 2;
FIG. 5 is an electrical schematic diagram of an encryption authentication circuit;
fig. 6 is a flow chart of the encryption official seal and official seal authentication server body.
The list of the reference numerals in the drawings is: 1. official seal authentication server; 2. a host housing; 3. and (3) a seal; 4. a power switch; 5. a battery; 6. a data interface; 7. a digital code wheel; a CPU and a microprocessor; u1, a mobile phone module; u2, a wireless communication module; u3, a wifi communication module; TP, touch signature screen; EN, encryption chip; PRT, micro printer; an LCD, a display; QD 1-QD 6, first-sixth stepper motor drivers; m1 to M6, a first stepping motor to a sixth stepping motor.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
The invention provides a set of solutions capable of guaranteeing the authenticity of physical official seal, and records the event abstract and the signature of a sponsor using the official seal.
Referring to fig. 1, the stamp system employed in the present invention comprises two parts: the official seal authentication server 1 and the encrypted official seal exchange information through a wireless communication network, wherein the encrypted official seal comprises a seal 3, a group of digital code disks 7 which are arranged at the bottom of the seal 3 and driven by a stepping motor, and an encrypted authentication circuit which is arranged in the seal 3 and a host shell 2. The system can ensure the safety of the communication link between the encrypted official seal and the official seal authentication server and the integrity and privacy of data transmission between the encrypted official seal and the official seal authentication server, realize the identity authentication of both parties and prevent the occurrence of counterfeit official seal or counterfeit official seal authentication server.
The stamp 3 keeps the name of the unit or company unchanged, but provides a set of random numbers through the digital code disk 7, the set of random numbers is provided by the official seal authentication server 1 and is valid within half an hour or an hour (the time can be adjusted, and the number is automatically adjusted to 0 after the time is up), and corresponds to a stamping action event. The group of numbers is arranged horizontally and is positioned below the red five stars in the current official seal. The next stamping event occurs and a set of random numbers is regenerated. Each set of random numbers remains unique. Thus, each time of stamping, the numbers on the official seal are variable and uniquely correspond to one stamping event, and the official seal authentication server mutually authenticate each other. Through the official seal encryption technology and the dynamic digital uniqueness of the official seal, the occurrence of criminal behaviors of privately inscribing the official seal is stopped.
The encryption authentication circuit comprises a CPU, a mobile phone module U1, a wireless communication module U2, a wifi communication module U3, a touch signature screen TP, an encryption chip EN, a micro printer PRT, a display LCD and six motor drivers (a first stepping motor driver QD1 to a sixth stepping motor driver QD 6).
The encryption chip EN is SC1161Y in type and is connected with the CPU by adopting an SPI interface. The chip supports SM1, SM2 and SM3 cryptographic algorithms and is provided with a true random number generator. The encryption official seal utilizes the chip to complete a bidirectional identity authentication function and a communication data encryption function with an official seal authentication server.
The model of the CPU is STM32F107, and the control of all peripheral circuits is completed; the whole network mobile phone module U1 adopts L506, and has the main function of establishing a communication link with a remote official seal authentication server and completing all data communication under the support of encryption and decryption data of an encryption chip EN. When the official seal is started, the mobile phone module U1 actively initiates the link service of the official seal authentication server, and after the authentication of both parties succeeds, the official seal can be started. The touch signature screen TP is a 4-line touch screen, the CPU collects Y, X information of the touch signature screen TP through A/D1 and A/D2, and whether touch occurs is judged through PA 3. The touch screen displays the event summary and user signature requiring handwriting input using official seals. After the comparison of the encrypted official seal built-in authorizer and the server built-in authorizer is passed and the content is confirmed, the encrypted uploading data is transmitted to the official seal authentication server, and meanwhile, the local official seal also encrypts and stores the event abstract of the using official seal and the signature content of the user. After receiving the digest and signature confirmation of the official seal, the official seal authentication server generates a non-zero random number smaller than 16777216 (the random number in the range of 1-16777216 is enough to be used by a company), converts the random number into 6-bit 16-level data, encrypts and transmits the 6-bit 16-level data to the official seal. The encrypted official seal is stored in an official seal stamping abstract record after receiving data, the data is decrypted, 6-bit 16-system data are analyzed, 6 single-phase stepping digital code discs are driven through PB0 to PB5 output IO ports, the numbers of the code discs are changed to be consistent with the 6-bit 16-system data provided by a server, half an hour or 1 hour of the data are reserved to be effective, and legal use of the official seal stamping time is provided for a user. The stepper motor changes all the code wheel numbers to 0 when the time exceeds. The encrypted official seal is defined as an invalid state at this time.
The official seal authentication server has the main functions of completing the identity authentication and certificate issuing of both parties with the encrypted official seal and calculating a 6-bit 16-system random number to the encrypted official seal. The official seal authentication server stores the seal abstract description, the user signature, the use date and the corresponding 6-bit unique 16-system nonzero random number allocated to the encrypted official seal.
Encryption official seal appearance: the shape of the seal 3 is consistent with the prior official seal, but a special data interface 6 is reserved and connected with the peripheral components. The touch signature screen TP, the all-network mobile phone module U1 and the micro printer PRT are independently integrated together as peripheral interface components, and the rest components are integrated in a common seal physical entity (namely a seal 3) and are connected through a special cable. A liquid crystal display LCD is arranged at the top of the seal 3, a dustproof transparent cover is sleeved outside the display LCD, and a 5v battery is arranged inside a handle of the seal 3. The encrypted official seal host part can print the summary content of the certificate of the official seal and the key information such as user information, unique 6-bit random numbers, company names, dates and the like through a micro printer, and the company names on the certificate are stored in an encrypted chip in a part encrypted mode and cannot be changed.
The signature of the authorizer is used by the built-in official seal of the encrypted official seal, the signature of the authorizer is used by the built-in official seal of the official seal authentication server, and the signatures of the authorizers are consistent when the official seal is normally used. The official seal company name is consistent with the company name on the bill printed by the encrypted official seal. The 6-bit numbers of the encrypted official seal are consistent with the numbers on the printed bill.
When the mobile phone module cannot be connected to the official seal authentication server under specific conditions and needs to be stamped, the encrypted official seal can exchange information with the official seal authentication server through the wifi communication module.
When the seal is needed but the encrypted official seal cannot be connected to the official seal authentication server through the mobile phone module and the wifi communication module, the encrypted official seal is connected with the opposite party official seal through the 433MHZ wireless communication module U2, company name information is mutually exchanged to verify authenticity, and a 6-bit unique 16-system number is generated. The exchanged information and the generated numbers are uploaded to a official seal authentication server for storage after networking. The official seal abstract and the user signature are used and are filled first, and the encrypted official seal is stored locally after confirmation, so that the 6-bit digital use can be started, and the official seal can be in a normal timing 30-minute use state. And uploading the official seal digest and the user signature to a official seal authentication server for storage.
The main functions of a liquid crystal display LCD are: 1. when the encrypted official seal cannot be effectively connected with the remote official seal authentication server, the two parties are connected with each other through 433MHZ communication, and the exchanged company information of the two parties is displayed. 2. After the official seal power supply is turned on, when the external signature equipment is not connected, the information of the name of the official seal company is displayed. 3. After the power supply of the official seal is turned on, information such as hardware detection information, version number and normal operation or not of the official seal is displayed.
The encryption official seal is used in a networking authentication mode, two party official seals are mutually networking authentication mode and are independently used in a non-networking mode, and in each case, the encryption official seal can be started only by filling in an official seal abstract and a user signature link.
After the encrypted official seal is reset, the 6-bit number is displayed as 0 and is locked and can not be stirred. This is the encrypted official seal invalid state.
Protection against the only possible official seal: some legal C company has an encrypted official seal system, and the pre-drawing impersonates the contract text signed by the A company official seal and the B company. The company C privately inscribes the company A encryption official seal shell, the company A encryption official seal digital certificate part is implanted in the imitated company A official seal shell to impersonate the company A official seal for use, and the company C encryption official seal system can still work at this time. However, when signing and closing with the company a who imports, the company a who imports can only print and provide the company official seal use authorizer information and company information of the company C through the encrypted official seal when verifying the official seal use authorizer information and company name, so that the company a is recognized as an impostor by the company B.
Claims (5)
1. The method is characterized in that a seal system is formed by a seal authentication server (1) and an encrypted seal, the encrypted seal comprises an encrypted authentication circuit and a seal (3) with a digital code disc (7) arranged on the bottom surface, the seal authentication server (1) and the encrypted seal firstly carry out mutual authentication through wireless communication when the seal is needed, the seal authentication server (1) sends a time-limited random number specific to a seal event to the encrypted seal after the authentication is passed, the encrypted seal enables the value of the digital code disc (7) to be consistent with the random number within set seal time, and a seal person can judge the authenticity of the seal by comparing the consistency of a seal event abstract containing the random number stored by the encrypted seal with seal patterns;
the encryption authentication circuit comprises a CPU, a touch signature screen (TP), an encryption chip (EN), a mobile phone module (U1), a micro Printer (PRT) and a stepping motor driver, wherein the touch signature screen (TP) sends an input port of the CPU with an input official seal event abstract and a user signature; the encryption chip (EN) is connected with the CPU through an SPI interface; the mobile phone module (U1) is connected with the CPU through a serial port and exchanges information with the official seal authentication server (1) through a wireless communication network; the micro Printer (PRT) receives and prints the summary record of the using official seal event output by the CPU through a serial port; the stepping motor driver receives a control signal output by the CPU and adjusts the numerical value of the digital code disc (7) through the stepping motor;
the encryption authentication circuit further comprises a wifi communication module (U3), the wifi communication module (U3) is connected with the CPU through a serial port, and when the mobile phone module (U1) cannot be connected with the official seal authentication server (1) through a wireless communication network, the encryption official seal exchanges information with the official seal authentication server (1) through the wifi communication module (U3);
the encryption authentication circuit further comprises a wireless communication module (U2), the wireless communication module (U2) is connected with the CPU through a serial port, when the encryption official seal cannot be connected to the official seal authentication server (1) through the mobile phone module (U1) and the wifi communication module (U3) and needs to be stamped, the encryption official seal is networked with the opposite party official seal through the wireless communication module (U2), company name information is mutually exchanged to verify authenticity, a time-limited random number required by stamping is generated, and after stamping is finished, the encryption official seal uploads an event abstract and a user signature of the current use official seal to the official seal authentication server (1) for storage;
the specific stamping steps are as follows:
a, actively initiating a plaintext TCP link by an encrypted official seal, and establishing TCP link communication between the encrypted official seal and an official seal authentication server (1);
b, the official seal authentication server (1) initiates a digital signature two-party identity authentication request, the encryption official seal and the official seal authentication server (1) send respective built-in authorizer information to the other party, and mutual identity authentication is completed through comparison;
c. encrypting the official seal and uploading the event abstract of the using official seal and the signature encryption of the user to an official seal authentication server (1);
d, after receiving the event abstract and the user signature of the official seal, the official seal authentication server (1) generates a non-zero random number and encrypts the non-zero random number to be transmitted to an encrypted official seal;
e, after the encrypted official seal receives the random number, storing the random number in an event abstract record using the official seal, and driving a digital code disc (7) to change the number of the digital code disc into a number consistent with the random number;
f, stamping by stamping personnel to obtain stamping patterns containing random numbers;
the stamping personnel compares the information in the stamping pattern with the summary record of the event using the official seal to confirm the authenticity of the official seal;
h. after the set stamping time is reached, all code disc numbers are changed to 0, and the encrypted official seal is restored to an invalid state.
2. The stamping method capable of preventing counterfeit official seal according to claim 1, wherein six digital code disks (7) are arranged, each digital code disk is hexadecimal, and a stepping motor driver is arranged on each stepping motor of each digital code disk (7).
3. The stamping method capable of preventing counterfeit official seal according to claim 1, wherein the touch signature screen (TP), the mobile phone module (U1) and the micro Printer (PRT) of the encryption authentication circuit are installed in the same host housing (2), and the rest of the encryption authentication circuit is installed in the stamp (3).
4. A stamping method capable of preventing counterfeit official stamps according to claim 3, characterized in that the electrical parts installed in the stamp (3) are powered by a battery (5), and the battery (5) is installed in the handle of the stamp (3).
5. The stamping method capable of preventing counterfeit official seal according to claim 4, wherein a display (LCD) is arranged at the top of the seal (3), and the display (LCD) is connected with the CPU through a serial port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928357.4A CN109263317B (en) | 2018-08-15 | 2018-08-15 | Stamping method capable of preventing official seal from being forged |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928357.4A CN109263317B (en) | 2018-08-15 | 2018-08-15 | Stamping method capable of preventing official seal from being forged |
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| CN109263317A CN109263317A (en) | 2019-01-25 |
| CN109263317B true CN109263317B (en) | 2024-03-29 |
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| CN201810928357.4A Active CN109263317B (en) | 2018-08-15 | 2018-08-15 | Stamping method capable of preventing official seal from being forged |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110708168A (en) * | 2019-10-16 | 2020-01-17 | 包永祥 | Intelligent Internet of things stamp system |
| CN112976843A (en) * | 2021-02-07 | 2021-06-18 | 王丽萍 | Anti-counterfeiting stamp and anti-counterfeiting method thereof |
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|---|---|
| CN109263317A (en) | 2019-01-25 |
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