CN112956753A

CN112956753A - Anti-counterfeiting chip, electronic atomizer and encryption identification method

Info

Publication number: CN112956753A
Application number: CN201911181647.8A
Authority: CN
Inventors: 古莹飘; 蔡正宗; 金刚; 王业凝
Original assignee: Shenzhen Guokeruixin Technology Co ltd
Current assignee: Shenzhen Sotrowin Technology Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2021-06-15

Abstract

The application relates to an anti-counterfeiting chip, an electronic atomizer and an encryption identification method. The anti-counterfeiting chip comprises: the device comprises a single-wire protocol module, a key generation module, a memory read-write module and a control module. The single wire protocol module realizes the single wire protocol connection with the external circuit. The key generation module is electrically connected with the single-wire protocol module and is used for generating a static password and/or a dynamic password. The memory read-write module is electrically connected with the key generation module. The control module is respectively and electrically connected with the single-wire protocol module, the secret key generation module and the memory read-write module. The anti-counterfeiting chip realizes information transmission through the single-wire protocol module. The anti-counterfeiting chip generates a static password and/or a dynamic password through the key generation module. The static password and the dynamic password can be stored in the memory read-write module. When the static password and/or the dynamic password need to be matched, the control module reads and matches the static password and/or the dynamic password.

Description

Anti-counterfeiting chip, electronic atomizer and encryption identification method

Technical Field

The application relates to the technical field of atomization devices, in particular to an anti-counterfeiting chip, an electronic atomizer and an encryption identification method.

Background

An electronic atomizer refers to a device that heats a stored substance that can be atomized to form an atomized state, such as an electronic cigarette, for heating tobacco tar or other similar substances to form a cigarette for inhalation by a user. With the continuous improvement of the intelligent degree, how to make each component of the electronic atomizer have higher corresponding matching degree has become a core research in the field of electronic atomizers.

Disclosure of Invention

Therefore, it is necessary to provide an anti-counterfeit chip, an electronic atomizer, and an encryption identification method for solving the problem of low matching degree of each component of the conventional electronic atomizer.

A security chip comprising:

the single-wire protocol module is used for realizing the single-thread protocol connection with an external circuit;

the key generation module is electrically connected with the single-wire protocol module and is used for generating a static password and/or a dynamic password;

the memory read-write module is electrically connected with the key generation module and is used for storing and monitoring key information; and

and the control module is respectively and electrically connected with the single-wire protocol module, the secret key generation module and the memory read-write module and is used for generating an anti-counterfeiting control function of the anti-counterfeiting chip.

In one embodiment, the control module comprises:

the flow control sub-module is used for assisting the single-wire protocol module to realize the single-wire protocol connection with an external circuit, and completes the decoding of a communication instruction and the execution of a communication function after the anti-counterfeiting chip is communicated with the external circuit; and

and the switch control submodule is used for realizing key verification, memory reading and writing and control of the output level of the anti-counterfeiting chip.

In one embodiment, the memory read-write module comprises:

a normal read area including data bits and check bits;

a self-locking region including a lock bit whose data can only implement one transition;

a free use area that can be set to the lock bit or to a restricted read-write bit;

the dynamic encryption area provides dynamic encryption identification, and when the dynamic encryption identification is correct, the high level is controlled to be output;

a mode setting area for setting an encryption recognition mode;

and the parameter recording area is used for recording and comparing the failure times of password identification.

The application provides an electronic atomizer, includes:

a tobacco rod comprising:

the cigarette rod body is provided with a containing cavity; and

the cigarette rod anti-counterfeiting chip is arranged in the containing cavity of the cigarette rod body and is any one of the anti-counterfeiting chips;

the cigarette bullet is electrically connected with the cigarette rod through two contact end points;

the cartridge comprises:

a cartridge body providing a receiving cavity;

the cigarette cartridge anti-counterfeiting chip is arranged in the containing cavity of the cigarette cartridge body and is any one of the anti-counterfeiting chips;

the electric heating wire is connected with the cigarette bullet anti-counterfeiting chip in parallel; and

and the electric heating wire switch is arranged between the electric heating wire and the smoke bomb anti-counterfeiting chip.

In one embodiment, a static password identification authentication and a dynamic password identification authentication exist between the cigarette rod anti-counterfeiting chip and the cigarette cartridge anti-counterfeiting chip.

In one embodiment, the contents of the static password identification credential and the dynamic password identification credential include: the type of the cigarette rod, the type of the cigarette cartridge, the encryption value, the user registration data, the sequence code and the check code.

In one embodiment, the cigarette rod anti-counterfeiting chip and the cigarette cartridge anti-counterfeiting chip are provided with functions of encryption, self-protection, self-destruction, deadlock and output control.

In one embodiment, the cigarette rod and the cigarette cartridge are electrically connected through two contact terminals, wherein one contact terminal is a data line and a power line, and the other contact terminal is a ground line.

In one embodiment, the cigarette rod further comprises an airflow sensor, the airflow sensor is arranged in the containing cavity of the cigarette rod body, is electrically connected with the cigarette rod anti-counterfeiting chip, and is used for detecting the change of airflow in the cartridge and sending the detection result to the cigarette rod anti-counterfeiting chip.

In one embodiment, the tobacco rod further comprises an alarm prompter, which is arranged inside the tobacco rod body, electrically connected with the tobacco rod anti-counterfeiting chip and used for giving an alarm when the tobacco rod anti-counterfeiting chip judges that the tobacco rod is not matched with the cartridge.

The application also provides an electronic atomizer encryption identification method, which adopts any one of the electronic atomizers, and the electronic atomizer encryption identification method comprises the following steps:

the cigarette rod anti-counterfeiting chip sends an identification signal and resets the cigarette cartridge anti-counterfeiting chip;

after the resetting of the cigarette cartridge anti-counterfeiting chip is completed, receipt information is generated and the cigarette rod anti-counterfeiting chip is informed;

the cigarette rod anti-counterfeiting chip continues to send functional information and informs the cigarette cartridge anti-counterfeiting chip to execute a communication function;

if the communication function is to execute a data reading instruction, the cigarette cartridge anti-counterfeiting chip sends user-defined customer data, a serial number and a check code to the cigarette rod anti-counterfeiting chip;

if the matching of the cigarette rod anti-counterfeiting chip is successful, the current verification state is locked to complete one-time encryption identification;

if the communication function is to execute an authentication instruction, the cigarette cartridge anti-counterfeiting chip verifies an encryption and decryption authentication program;

if the encryption and decryption authentication program passes, the cigarette cartridge anti-counterfeiting chip controls a clock to output a high level, a cigarette cartridge switch or an electric heating wire switch is started, and the current verification state is locked to finish one-time encryption identification.

The application provides an anti-counterfeiting chip, an electronic atomizer and an encryption identification method. The anti-counterfeiting chip comprises: the device comprises a single-wire protocol module, a key generation module, a memory read-write module and a control module. The single wire protocol module realizes the single wire protocol connection with the external circuit. The key generation module is electrically connected with the single-wire protocol module and is used for generating a static password and/or a dynamic password. The memory read-write module is electrically connected with the key generation module. The control module is respectively electrically connected with the single-wire protocol module, the secret key generation module and the memory read-write module to realize the anti-counterfeiting control function. The anti-counterfeiting chip realizes information transmission through the single-wire protocol module. The anti-counterfeiting chip generates a static password and/or a dynamic password through the key generation module. The static password and the dynamic password can be stored in the memory read-write module. When the static password and/or the dynamic password need to be matched, the control module reads and matches the static password and/or the dynamic password.

Drawings

FIG. 1 is a diagram of a security chip architecture provided in one embodiment of the present application;

FIG. 2 is a block diagram of a memory read/write module according to an embodiment of the present application;

FIG. 3 is a block diagram of a memory read/write module according to an embodiment of the present application;

FIG. 4 is a block diagram of an electronic atomizer provided in one embodiment of the present application;

FIG. 5 is a block diagram of an electronic atomizer provided in one embodiment of the present application;

fig. 6 is a flowchart of a cryptographic identification method for an electronic atomizer according to an embodiment of the present application.

The reference numbers illustrate:

anti-counterfeiting chip 10

Single wire protocol module 11

Key generation module 12

Memory read-write module 13

Normal read zone 131

Self-locking region 132

Free use area 133

Dynamic encryption zone 134

Mode setting area 135

Parameter recording area 136

Control module 14

Flow control submodule 141

Switch control submodule 142

Electronic atomizer 20

Tobacco rod 100

Tobacco rod body 110

Anti-fake chip 120 of tobacco stem

Airflow sensor 150

Alarm prompter 160

Cigarette 200

The cartridge body 210

Anti-counterfeiting chip 220 for cigarette cartridge

Electric heating wire 230

Electrical heater wire switch 240

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Referring to fig. 1, the present application provides an anti-counterfeit chip 10. The anti-counterfeit chip 10 includes: a single wire protocol module 11, a key generation module 12, a memory read-write module 13 and a control module 14.

The single-wire protocol module 11 is used for implementing a single-wire protocol connection with an external circuit. The single-wire protocol module 11 may use a single loop signal lead (Smart-wire) as a communication interface.

The key generation module 12 is electrically connected with the single-wire protocol module 11 for generating a static password and/or a dynamic password. The key generation module 12 may generate a dynamic identity id (identity document). The password generated by the key generation module 12 can be one-time password, and can be random, so that the problem that the identity ID is copied or counterfeited does not exist, and the anti-counterfeiting purpose is achieved.

The memory read-write module 13 is electrically connected with the key generation module 12 for storing and monitoring key information. The key information may be packagedIncluding the static password and/or the dynamic password. The memory read-write module 13 can be EEPROM or writing E²PROMs, called Electrically Erasable Programmable Read-Only memories (English language). An EEPROM is a semiconductor storage device that can be electronically rewritten many times. EEPROM can be programmed with specific commands and voltages to erase information on the chip in order to write new data. The EEPROM may also use a locking function so that information cannot be changed. In addition, the EEPROM does not need to be irradiated by ultraviolet rays and removed, and information on the chip can be erased by using a specific voltage so as to write new data.

The control module 14 is electrically connected with the single-wire protocol module 11, the secret key generation module 12 and the memory read-write module 13 respectively and is used for generating an anti-counterfeiting control function of the anti-counterfeiting chip 10. The control module 14 may enable reading and matching of the static password and/or the dynamic password.

In the present embodiment, a counterfeit prevention chip 10 is provided. The anti-counterfeiting chip 10 can be used independently or in a matching way. The anti-counterfeiting chip 10 realizes information transmission through the single-wire protocol module 11. The anti-counterfeiting chip 10 generates a static password and/or a dynamic password through the key generation module 12. The static password and/or the dynamic password generated by the key generation module 12 at a time may be different to avoid being copied or counterfeited. The static password and/or the dynamic password can be stored in the memory read-write module 13. When the static password and/or the dynamic password need to be matched, the control module 14 reads the static password and/or the dynamic password from the memory read-write module 13 to complete the matching of the static password and/or the dynamic password.

In one embodiment, a security chip 10 is provided that uses a single loop signal lead as a communication interface. For example, the anti-counterfeit chip 10 can be applied to a cigarette cartridge as a data carrier with dynamic ID encryption anti-counterfeit and output control. The anti-counterfeiting chip 10 takes a single loop communication interface as an electronic registration number of an automatic identity recognition system, and has the functions of anti-counterfeiting, copy prevention, self preservation, deadlock and the like. For example, the anti-counterfeit chip 10 can be used as a chip designed for managing the identity of the cigarette cartridge of the electronic cigarette, preventing counterfeit, and controlling the conduction, heating and atomization of the atomizer. Each anti-counterfeiting chip of the cigarette cartridge has a unique identity password when leaving a factory. Each anti-counterfeiting chip for the cigarette cartridge can also be provided with a static password when leaving a factory, and the static password can be a static password group engraved in the factory. The static cipher suite may include: a unique sequence code and a CRC check code. The anti-counterfeiting chip of the cigarette cartridge can be serially transmitted and externally communicated through a single loop signal lead and a single ground loop. When the identity authentication is needed between the cigarette rod and the cigarette cartridge, the identity password is transmitted in a dynamic mode.

Adopt in this application anti-fake chip 10 is as cigarette bullet anti-fake chip, can make same cigarette bullet anti-fake chip produce the password all different at every turn at the transmitting terminal (corresponding to static password and/or the dynamic password that cigarette rod end received also different) with the malicious imitation copy action of puzzlement, hindering are arrived to the password result of difference, and the agreement content of this password accords with the standard of verifying simultaneously and reaches management and anti-fake purpose with this. On the other hand, if the static password and/or the dynamic password generated by the anti-counterfeiting chip of the cartridge and the same reader-writer are verified again or another new reader-writer is used for communication verification, the anti-counterfeiting verification cannot be passed or the matching cannot be achieved.

In a specific embodiment, the security chip 10 has a unique serial number and a unique CRC check code, which may be referred to as registration codes, and it is ensured that the registration codes of no two chips in the security chip 10 are the same, ensuring that each chip is unique. The total capacity of the erasable memory of the anti-counterfeit chip 10 can be set according to actual requirements, for example, 256 bytes, 512 bytes, 1024 bytes or even larger. The anti-counterfeit chip 10 may include a general memory capacity and a dynamic encryption memory capacity, and the specific sizes of the general memory capacity and the dynamic encryption memory capacity may be automatically matched. The anti-counterfeiting chip 10 can further comprise a static password for realizing static identification. The reading time of the anti-counterfeiting chip 10 is shorter than that of the conventional identification chip, and short-time identity identification can be realized. The anti-counterfeiting chip 10 is in data communication with an external circuit through a single-loop lead wire, and the transmission rate is higher.

In one embodiment, the control module 14 includes: a flow control sub-module 141 and a switch control sub-module 142.

The process control sub-module 141 is configured to assist the single-wire protocol module 11 to implement single-wire protocol connection with an external circuit. The flow control sub-module 141 completes the decoding of the communication instruction and the execution of the communication function after the anti-counterfeit chip 10 communicates with the external circuit. Specifically, the flow control sub-module 141 is configured to implement single-thread protocol communication with an external circuit, and then is further configured to perform decoding and decryption/decryption functions of a generated instruction.

The switch control submodule 142 is used for realizing key verification, memory reading and writing and control of the output level of the anti-counterfeiting chip 10.

Specifically, the switch control sub-module 142 is used to implement key verification, memory read-write and control of the output level of the anti-counterfeit chip 10. The switch control sub-module 142 may determine whether the dynamic encryption module is enabled or not. The switch control sub-module 142 may determine when to perform on-chip, memory read and write operations. The switch control sub-module 142 may determine whether the electrical power device switch (or the heating wire switch) is on/off or off/on.

In this embodiment, the control module 14 includes the flow control sub-module 141 and the switch control sub-module 142. The control module 14 can implement single-thread communication, decoding of generated instructions, and encryption/decryption control of the anti-counterfeit chip 10. The control module 14 can help the anti-counterfeiting chip to realize a control function.

Specifically, in one embodiment, each functional module of the anti-counterfeit chip 10 is controlled and implemented by program codes. The security chip 10 therefore has no specific structural diagram of the circuit elements.

Referring to fig. 2 and 3, in one embodiment, the memory read/write module 13 includes: a normal reading area 131, a lock-free area 132, a free use area 133, a dynamic encryption area 134, a mode setting area 135, and a parameter recording area 136.

In one embodiment, the normal read zone 131 includes 7 data bits and one check bit. The normal read area 131 shown in fig. 3 includes 7 data bits UID 0, UID 1, UID 2, UID 3, UID 4, UID5, and UID 6, and a CRC check bit. Each data Bit occupies 8 bits, one CRC check Bit occupies 8 bits, and the common read region 131 occupies 64 bits in total. In other embodiments, the number of bits of the data bits and the check bits included in the normal reading area 131 may be other combinations, and is not limited herein.

In one embodiment, the lockdown region 132 includes 8 lock bits whose data can only implement one transition. The self-LOCK region 132 is called a LOCK region, and the self-LOCK region 132 may include 8 LOCK bits, LOCK 0, LOCK 1, LOCK 2, LOCK 3, LOCK 4, LOCK 5, LOCK 6, and LOCK 7. The data in each of the lock bits may only be one transition. For example, each of the lock bits can only implement a 0 to 1 transition and cannot implement a 1 to 0 transition. Or each of the lock bits can only implement a 1 to 0 transition and cannot implement a 0 to 1 transition. In other embodiments, the self-locking region may include more than 8 locking positions, which is not particularly limited herein.

The free use region 133 may be set to the lock bit or to a restricted read and write bit. The free use area 133 provides a free use area for a user, and may be set as a LOCK, or restrict reading and writing via a Password.

The dynamic encryption area 134 provides dynamic encryption identification, and when the dynamic encryption identification is correct, the output of high level is controlled. The dynamic encryption region 134 is a location that cannot be accessed by a user and can only be used inside the security chip 10. If the dynamic encryption identification is correct, the switch of the electric heating wire can be turned on only by controlling and outputting a high level.

The mode setting section 135 is used to set an encryption recognition mode. Specifically, the mode setting area 135 may set an encryption identification mode, for example, a maximum number of comparison errors may be set, and if the maximum number of comparison errors exceeds the maximum number, the security chip 10 is automatically locked. For another example, if the password reaches the maximum limit number, the writing function is locked forever, and the password cannot be written into the anti-counterfeit chip 10. For another example, if the dynamic encryption reaches the maximum limit number, the security chip 10 cannot output a high level. If the anti-counterfeiting chip 10 is applied to an electronic atomizer, the anti-counterfeiting chip 10 can never turn on the electric heating wire switch. In addition, the mode setting area 135 can also distinguish the number of times of "password error" and "dynamic encryption error". The number of times of "cipher error" and "dynamic encryption error" may be set separately.

The parameter recording area 136 is used for recording and comparing the number of times of failure of password identification.

Specifically, the parameter recording area 136 may record the number of times of "cipher error" and "dynamic encryption error", respectively. In the parameter recording area 136, when the times of the "password error" and the "dynamic encryption error" reach the maximum limit times respectively during the recording process, if the identification is correct once, the previous error record is zeroed.

In this embodiment, the memory read/write module 13 may be a read-only memory, and the area division of the memory read/write module 13 may be divided according to the form defined in this embodiment. The memory read/write module 13 may also be in other storage forms, and is not limited in detail herein.

Referring to fig. 4 and 5, an electronic atomizer 20 is also provided. The structure of the electronic atomizer 20 is specifically illustrated in fig. 4. Fig. 5 specifically illustrates specific control modules of the cigarette rod anti-counterfeiting chip 120 and the cigarette cartridge anti-counterfeiting chip 220. The electronic atomizer 20 includes: a tobacco rod 100 and a cartridge 200. The tobacco rod 100 and the cartridge 200 are electrically connected by two contact points.

The tobacco rod 100 comprises: a tobacco rod body 110 and a tobacco rod anti-counterfeiting chip 120. The tobacco rod body 110 can provide a receiving cavity. The cigarette rod anti-counterfeiting chip 120 is arranged in the containing cavity of the cigarette rod body 110, and the cigarette rod anti-counterfeiting chip 120 is the anti-counterfeiting chip 10 described in any one of the above.

The cartridge 200 includes: the cartridge comprises a cartridge body 210, a cartridge anti-counterfeiting chip 220, an electric heating wire 230 and an electric heating wire switch 240. The cartridge body 210 provides a receiving cavity. The cartridge anti-counterfeiting chip 220 is disposed in the containing cavity of the cartridge body 210, and the cartridge anti-counterfeiting chip 220 is the anti-counterfeiting chip 10 described in any one of the above. The electric heating wire 230 is connected in parallel with the cartridge anti-counterfeiting chip 220. The electric heating wire switch 240 is arranged between the electric heating wire 230 and the cartridge anti-counterfeiting chip 220.

The electronic atomizer 20 provided in this embodiment can implement the anti-counterfeit authentication of the electronic atomizer 20 through the encryption and decryption identification between the cigarette rod anti-counterfeit chip 120 and the cartridge anti-counterfeit chip 220. The specific encryption/decryption authentication method may refer to the encryption/decryption control method and the control strategy of the anti-counterfeit chip 10. For example, before leaving the factory, the cartridge anti-counterfeit chip 220 stores a uniquely determined static password. Before leaving the factory, the uniquely determined identification password which can be in one-to-one correspondence with the static password stored in the cartridge anti-counterfeiting chip 220 is stored in the cigarette rod anti-counterfeiting chip 120. When the single-threaded connection is realized between the cigarette rod anti-counterfeiting chip 120 and the cigarette cartridge anti-counterfeiting chip 220, the static password in the cigarette cartridge anti-counterfeiting chip 220 is recognized by the recognition password in the cigarette rod anti-counterfeiting chip 120 (the comparison result is consistent), then the cigarette rod 100 starts power output control, and the heating wire control switch 240 is turned to an on/off state, so that current can flow through the heating wire 230, and normal smoke oil ignition work can be performed.

In one embodiment, a static password identification authentication and a dynamic password identification authentication exist between the cigarette rod anti-counterfeiting chip 120 and the cartridge anti-counterfeiting chip 220.

In this embodiment, the static password identification between the cigarette rod anti-counterfeit chip 120 and the cigarette cartridge anti-counterfeit chip 220 may be the following identification steps: before leaving the factory, the uniquely determined static password is stored in the cartridge anti-counterfeiting chip 220. Before leaving the factory, the uniquely determined identification password which can be in one-to-one correspondence with the static password stored in the cartridge anti-counterfeiting chip 220 is stored in the cigarette rod anti-counterfeiting chip 120. When the single-thread connection is realized between the cigarette rod anti-counterfeiting chip 120 and the cigarette cartridge anti-counterfeiting chip 220, the static password in the cigarette cartridge anti-counterfeiting chip 220 is identified by the identification password in the cigarette rod anti-counterfeiting chip 120, the authentication is completed, and the normal oil smoke ignition work can be performed.

In one embodiment, the contents of the static password identification credential and the dynamic password identification credential include: the type of the cigarette rod, the type of the cigarette cartridge, the encryption value, the user registration data, the sequence code and the check code. Specifically, the production history of the cartridge, the operating parameters of the cartridge, and the usage status (the number of times of use, the frequency of use, or the combustion efficiency of the tobacco tar) of the cartridge may be stored in the cartridge anti-counterfeit chip.

In this embodiment, the static password identification authentication may include some fixed and unchangeable contents. The content that the dynamic password identification authentication can authenticate may be content that changes every time. The static password identification authentication and the dynamic password identification authentication processes need the cigarette rod anti-counterfeiting chip 120, the cigarette cartridge anti-counterfeiting chip 220 and an initial encryption value to be realized. If the comparison result is consistent in the tobacco rod 100 part, the tobacco rod 100 starts power output control. If the comparison result is consistent in the portion of the cartridge 200, the cartridge anti-counterfeiting chip 220 turns on/off the heating wire control switch 240, so that current can flow through the heating wire 230. If the comparison result is inconsistent, the cigarette rod 100 does not send the driving current, and the cartridge heating wire switch 240 is also maintained in the off/on state.

In one embodiment, the anti-counterfeit chip 120 for cigarette rod and the anti-counterfeit chip 220 for cigarette cartridge are provided with encryption, self-protection, self-destruction, deadlock and output control functions.

In this embodiment, the cigarette rod anti-counterfeit chip 120 and the cartridge anti-counterfeit chip 220 are composed of multiple different functions such as dynamic ID encryption, self-protection, self-destruction, deadlock, password, output control, and the like in a security mechanism, so as to ensure that the cartridge dynamic ID anti-counterfeit chip is not copied. The cigarette rod anti-counterfeiting chip 120 and the cigarette cartridge anti-counterfeiting chip 220 can be set in the forms of dynamic ID encryption, self-protection, self-destruction, deadlock and output control.

(1) Dynamic ID encryption and anti-counterfeiting: when the same cartridge anti-counterfeit chip 220 faces the same reader (the same cigarette stem anti-counterfeit chip 120) due to dynamic ID encryption, the content of the result of each verification is different.

(2) Self-protection: the dynamic ID encryption parameters of each of the cartridge anti-counterfeiting chips 220 are different and have no relevance, so that the situation that all anti-counterfeiting products are affected due to the fact that the passwords are cracked by the dynamic ID of one of the cartridge anti-counterfeiting chips 220 is avoided.

(3) Self-destruction: the cartridge anti-counterfeiting chip 220 can be destroyed when the smoking times reach the set time limit of the cartridge 200, and is prevented from being recycled and reused.

(4) Deadlock: for example, the cartridge anti-counterfeit chip 220 can be automatically deadlocked and cannot be used when 7 consecutive password errors are set.

(5) Password: the password in the cartridge anti-counterfeiting chip 220 can be stored in the memory read-write module 13, and is used for protecting the data in the memory, and the memory content can be erased and written only by password verification.

(6) And (3) output control: only when the dynamic ID encryption password is successfully verified, the output control module (CTRL end in fig. 4) inside the cartridge anti-counterfeiting chip 220 turns on the heating wire switch 240 of the electronic atomizer 20 through the output port, so as to heat the electric heating wire 230.

In one embodiment, the tobacco rod 100 and the cartridge 200 are electrically connected by two contact points. One of the contact terminals is a data line and a power line, and the other contact terminal is a ground line.

In this embodiment, referring to fig. 4, the contact point a in fig. 4 is a contact point of a data line transmission and a power supply. The contact point B in fig. 4 is a contact point of the ground line. When the two-way identification of the cigarette rod anti-counterfeit chip 120 and the cartridge anti-counterfeit chip 220 is successful, the output port (CTRL port in fig. 4) of the cartridge anti-counterfeit chip 220 turns on the heating wire switch 240 of the electronic atomizer 20, so as to heat the electric heating wire 230. The cigarette rod 100 provides energy required by the heating wire 230, and the energy is sent to the cartridge 200 through a data line, so that the heating wire 230 works normally to atomize the tobacco tar. The contact terminal a can have dual functions of transmitting data and transmitting power.

When the two-way identification of the cigarette rod anti-counterfeit chip 120 and the cartridge anti-counterfeit chip 220 fails, the output port (CTRL port in fig. 4) of the cartridge anti-counterfeit chip 220 will not conduct the heating wire switch 240 of the electronic atomizer 20, and the electric heating wire 230 will not work.

In one embodiment, the cigarette rod anti-counterfeit chip 120 and/or the cartridge anti-counterfeit chip 220 may be further provided with a Bluetooth control module (BLE for short). The addition of the Bluetooth control module can increase the data transmission mode. The bluetooth control module provides an option for communication function expansion.

In one embodiment, the tobacco rod 100 further includes an airflow sensor 150 (shown in FIG. 4). The airflow sensor 150 is disposed in the receiving cavity of the cigarette rod body 110. The airflow sensor 150 is electrically connected to the cigarette rod anti-counterfeit chip 120, and is configured to detect a change in airflow in the cartridge 200, and send a detection result to the cigarette rod anti-counterfeit chip 120.

In one embodiment, the tobacco rod 100 further includes an alarm prompt 160 (shown in FIG. 4). The alarm prompter 160 is disposed inside the cigarette rod body 110. For example, the alarm prompter 160 may be integrated on a circuit board inside the tobacco rod body 110. The alarm prompting device 160 is electrically connected with the cartridge anti-counterfeiting chip 220, and is used for giving an alarm when the cartridge anti-counterfeiting chip 220 judges that the tobacco rod 100 is not matched with the cartridge 200.

Referring to fig. 6, the present application further provides an encryption and identification method for an electronic atomizer. The electronic atomizer encryption identification method adopts the electronic atomizer 20 described in any one of the above. The electronic atomizer encryption identification method comprises the following steps:

the cigarette rod anti-counterfeiting chip 120 sends an identification signal to reset the cigarette cartridge anti-counterfeiting chip 220. The identification signal may comprise a dynamic ID code. The dynamic ID password may be a dynamically changing binary code or a password composed by other methods.

The anti-counterfeit chip 220 of cigarette cartridge generates receipt information after the resetting is completed, and informs the anti-counterfeit chip 120 of cigarette rod.

The cigarette rod anti-counterfeiting chip 120 continues to send functional information to inform the cartridge anti-counterfeiting chip 220 to execute a communication function. Specifically, the functional information may be information indicating that the cartridge anti-counterfeit chip 220 executes a reading instruction or information indicating that the cartridge anti-counterfeit chip 220 executes an authentication instruction.

If the communication function is to execute a data reading instruction, the cartridge anti-counterfeit chip 220 sends the customized customer data, serial number and check code to the cigarette rod anti-counterfeit chip 120.

If the matching of the cigarette rod anti-counterfeiting chip 120 is successful, the current verification state is locked to complete one-time encryption identification.

If the communication function is to execute an authentication instruction, the cartridge anti-counterfeiting chip 220 verifies an encryption/decryption authentication procedure.

If the encryption and decryption authentication program passes, the cigarette cartridge anti-counterfeiting chip 220 controls a clock to output a high level, a cigarette cartridge switch or an electric heating wire switch is turned on, and the current verification state is locked to finish one-time encryption identification.

In this embodiment, the specific steps of the encryption identification method for the electronic atomizer may be combined with fig. 5 and refer to fig. 6. A flow chart of the specific steps of the electronic atomizer encryption identification method is given in fig. 6. The steps of cryptographic identification are only given once in fig. 6. The specific encryption/decryption authentication method may also refer to the encryption/decryption control method and control strategy described above for the electronic atomizer 20. For example, before leaving the factory, the cartridge anti-counterfeit chip 220 stores a uniquely determined static password. Before leaving the factory, the uniquely determined identification password which can be in one-to-one correspondence with the static password stored in the cartridge anti-counterfeiting chip 220 is stored in the cigarette rod anti-counterfeiting chip 120. When the single-threaded connection is realized between the cigarette rod anti-counterfeiting chip 120 and the cigarette cartridge anti-counterfeiting chip 220, the static password in the cigarette cartridge anti-counterfeiting chip 220 is recognized by the recognition password in the cigarette rod anti-counterfeiting chip 120 (the comparison result is consistent), then the cigarette rod 100 starts power output control, and the heating wire control switch 240 is turned to an on/off state, so that current can flow through the heating wire 230, and normal smoke oil ignition work can be performed.

In one embodiment, the electronic atomizer encryption identification method further comprises dynamic identification. The traditional ID is fixed and unchangeable, and has the problem of being easily copied, so that the cartridge is easily counterfeited. In the application, the cigarette rod anti-counterfeiting chip 120 and the cartridge anti-counterfeiting chip 220 adopted in the electronic atomizer encryption identification method can generate dynamic Identity (ID) so as to realize one-time pad and random circulation and achieve the anti-counterfeiting purpose.

In one embodiment, the electronic atomizer encryption identification method further comprises a self-protection method. When the electronic atomizer 20 is powered on, the cigarette rod anti-counterfeiting chip 120 and the cartridge anti-counterfeiting chip 220 are always on standby but do not work. At this time, even if the communication protocol between the cigarette rod anti-counterfeit chip 120 and the cigarette cartridge anti-counterfeit chip 220 is known to fail to start the cigarette rod anti-counterfeit chip 120 and the cigarette cartridge anti-counterfeit chip 220, the response is not sent out the dynamic identity ID until the correct wake-up password is received.

In one embodiment, the electronic atomizer encryption identification method further comprises a self-destruction method. The number of times of sucking can be set for each cartridge 200, and when the number of times of using the cartridge 200 reaches a set value, the atomization function is automatically disabled, and the cartridge 200 cannot be used continuously.

In one embodiment, the electronic atomizer encryption identification method further comprises a single-wire output control method. The heating control is added to the electrical architecture of the single bus (only one bus, namely, the data transmission for authentication and the heating control). The traditional single bus is only used for verification of identity ID and has no control function, and the heating control of the atomizer is added to the cartridge anti-counterfeiting chip 220. In the embodiment of the present application, an electronic atomizer may be further provided, in which a decryption function is added to the original tobacco rod, and the anti-counterfeit chip provided in the above embodiment of the present application is used to replace the anti-counterfeit chip 220 of the cartridge, so as to realize an encryption/decryption identification method between the tobacco rod with a new decryption function and the anti-counterfeit chip 220 of the cartridge. Thus, the structure of the traditional electronic atomizer is changed less. That is, the anti-counterfeit chip is mainly disposed at one end of the cartridge 200, i.e., the cartridge anti-counterfeit chip 220 is necessary. The chip of the cigarette rod end is used for decryption and can be obtained by upgrading the original cigarette rod control chip.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A security chip, comprising:

the single-wire protocol module (11) is used for realizing single-thread protocol connection with an external circuit;

the key generation module (12) is electrically connected with the single-wire protocol module (11) and is used for generating a static password and/or a dynamic password;

the memory read-write module (13) is electrically connected with the key generation module (12) and is used for storing and monitoring key information; and

and the control module (14) is respectively and electrically connected with the single-wire protocol module (11), the secret key generation module (12) and the memory read-write module (13) and is used for generating an anti-counterfeiting control function of the anti-counterfeiting chip (10).

2. The security chip according to claim 1, wherein the control module (14) comprises:

the flow control sub-module (141) is used for assisting the single-wire protocol module (11) to realize the single-wire protocol connection with an external circuit, and the flow control sub-module (141) completes the decoding of a communication instruction and the execution of a communication function after the anti-counterfeiting chip (10) is communicated with the external circuit; and

and the switch control submodule (142) is used for realizing key verification, memory reading and writing and control of the output level of the anti-counterfeiting chip (10).

3. The security chip according to claim 1, wherein the memory read-write module (13) comprises:

a normal read zone (131) comprising data bits and check bits;

a latching region (132) including a lock bit whose data can only effect one transition;

a free use area (133) that can be set to the lock bit or to a restricted read-write bit;

a dynamic encryption area (134) for providing dynamic encryption identification, and controlling to output a high level when the dynamic encryption identification is correct;

a mode setting area (135) for setting an encryption recognition mode;

and a parameter recording area (136) for recording and comparing the number of times of password identification failure.

4. An electronic atomizer, comprising:

a tobacco rod (100) comprising:

a tobacco rod body (110) providing a receiving cavity; and

a tobacco rod anti-counterfeiting chip (120) arranged in the receiving cavity of the tobacco rod body (110), wherein the tobacco rod anti-counterfeiting chip (120) is the anti-counterfeiting chip (10) of any one of claims 1 to 3;

a cartridge (200) electrically connected to the tobacco rod (100) by two contact points;

the cartridge (200) comprises:

a cartridge body (210) providing a receiving cavity;

a cartridge anti-counterfeiting chip (220) disposed in the receiving cavity of the cartridge body (210), the cartridge anti-counterfeiting chip (220) being the anti-counterfeiting chip (10) of any one of claims 1 to 3;

the electric heating wire (230) is connected with the cigarette cartridge anti-counterfeiting chip (220) in parallel; and

and the electric heating wire switch (240) is arranged between the electric heating wire (230) and the cartridge anti-counterfeiting chip (220).

5. The electronic atomizer of claim 4, wherein a static password identification authentication and a dynamic password identification authentication exist between the rod forgery prevention chip (120) and the cartridge forgery prevention chip (220).

6. The electronic nebulizer of claim 5, wherein the contents of the static password identification credential and the dynamic password identification credential comprise: the type of the cigarette rod, the type of the cigarette cartridge, the encryption value, the user registration data, the sequence code and the check code.

7. The electronic atomizer according to claim 6, characterized in that the rod forgery prevention chip (120) and the cartridge forgery prevention chip (220) are provided with functions of encryption, self-protection, self-destruction, deadlock, and output control.

8. The electronic atomizer according to claim 7, characterized in that the rod (100) and the cartridge (200) are electrically connected by two contact terminals, one of which is a data line and power line and the other is a ground line.

9. The electronic atomizer according to claim 4, wherein the tobacco rod (100) further comprises an airflow sensor (150) disposed in the receiving cavity of the tobacco rod body (110) and electrically connected to the tobacco rod anti-counterfeit chip (120) for detecting a change in airflow in the cartridge (200) and sending the detection result to the tobacco rod anti-counterfeit chip (120).

10. The electronic atomizer according to claim 1, wherein the tobacco rod (100) further comprises an alarm indicator (160) disposed inside the tobacco rod body (110) and electrically connected to the cartridge anti-counterfeit chip (220), for giving an alarm when the cartridge anti-counterfeit chip (220) determines that the tobacco rod (100) is not matched with the cartridge (200).

11. An electronic atomizer encryption identification method, wherein the electronic atomizer (20) according to any one of claims 4 to 10 is used, the electronic atomizer encryption identification method comprising:

the cigarette rod anti-counterfeiting chip (120) sends an identification signal and resets the cigarette cartridge anti-counterfeiting chip (220);

after the cigarette cartridge anti-counterfeiting chip (220) is reset, receipt information is generated and the cigarette rod anti-counterfeiting chip (120) is informed;

the cigarette rod anti-counterfeiting chip (120) continues to send functional information and informs the cigarette cartridge anti-counterfeiting chip (220) to execute a communication function;

if the communication function is to execute a data reading instruction, the cigarette cartridge anti-counterfeiting chip (220) sends self-defined customer data, a serial number and a check code to the cigarette rod anti-counterfeiting chip (120);

if the cigarette rod anti-counterfeiting chip (120) is successfully matched, the current verification state is locked to finish one-time encryption identification;

if the communication function is to execute an authentication instruction, the cigarette cartridge anti-counterfeiting chip (220) verifies an encryption and decryption authentication program;

if the encryption and decryption authentication program passes, the cigarette cartridge anti-counterfeiting chip (220) controls a clock to output a high level, a cigarette cartridge switch or an electric heating wire switch is turned on, and the current verification state is locked to finish one-time encryption identification.