CN108734253B - Consumable chip verification method, consumable chip and consumable container - Google Patents
Consumable chip verification method, consumable chip and consumable container Download PDFInfo
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- CN108734253B CN108734253B CN201710243693.0A CN201710243693A CN108734253B CN 108734253 B CN108734253 B CN 108734253B CN 201710243693 A CN201710243693 A CN 201710243693A CN 108734253 B CN108734253 B CN 108734253B
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- 238000012795 verification Methods 0.000 title claims abstract description 179
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000003384 imaging method Methods 0.000 claims abstract description 156
- 238000009434 installation Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17543—Cartridge presence detection or type identification
- B41J2/17546—Cartridge presence detection or type identification electronically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17566—Ink level or ink residue control
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Ink Jet (AREA)
- Dry Development In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
The invention relates to a consumable chip verification method, a consumable chip and a consumable container, wherein the consumable chip verification method comprises the following steps: the consumable chip generates a check value according to the serial number of the consumable chip; transmitting the serial number and the check value to imaging equipment; acquiring a verification result returned by the imaging equipment according to the serial number and/or the verification value, and judging whether the verification result is a legal verification result or not; if yes, verifying to pass; wherein the check value generated by the same serial number is a fixed value. According to the invention, the test value generated by the same serial number is set as a fixed value, so that the consumable chip corresponding to the serial number can be always verified by the imaging equipment no matter how many times the consumable chip is used, and unnecessary waste caused by that the consumable chip does not pass the verification is avoided.
Description
Technical Field
The invention relates to the technical field of consumables applied to imaging equipment, in particular to a consumable chip verification method, a consumable chip applying the method and a consumable container provided with the consumable chip.
Background
Imaging devices, such as printers, copies, facsimile machines, and multifunctional integrated printers, are indispensable office supplies in various fields, and as society develops, imaging devices are becoming one of the common home appliances. In order to better image forming apparatuses for consumable materials such as toner or ink in a consumable container, it is generally necessary to mount a consumable chip on the consumable container. The consumable chip is verified and communicated with the main board in the imaging device, so that the imaging device can identify the consumable container, and then the imaging device can normally use the toner or ink in the consumable container.
In the prior art, in particular, an imaging device produced by an OEM generally verifies information such as a model number, a serial number, a consumable capacity, a consumable consumption, a printing number, and a printing number of consumable containers which are usually stored in a consumable chip. After verification is passed, the imaging device performs verification on consumable capacity, consumable consumption, printing times and printing quantity in the using process, for example, the imaging device performs verification on the printing times and consumable capacity of two adjacent times of the same serial number chip respectively, judges whether the verification results respectively meet preset conditions, if not, the imaging device does not allow the chip to pass through, and even if the chip is a new chip, the imaging device does not allow the chip to pass through, so that unnecessary waste is caused.
Disclosure of Invention
In order to solve the problems, the invention provides a verification method of consumable chips, a consumable chip and a consumable container provided with the consumable chip, wherein the verification method can enable the consumable chips to smoothly go through the machine and avoid waste.
A consumable chip verification method comprises the following steps:
the consumable chip generates a check value according to the serial number of the consumable chip;
transmitting the serial number and the check value to imaging equipment;
acquiring a verification result returned by the imaging equipment according to the serial number and/or the verification value, and judging whether the verification result is a legal verification result or not;
if yes, verifying to pass;
wherein the check value generated by the same serial number is a fixed value.
Preferably, after the step of sending the verification value to the imaging device, before the step of obtaining the verification result returned by the imaging device according to the serial number and/or the verification value and judging whether the verification result is legal, the method further comprises the following steps:
after the imaging equipment acquires the check value, judging whether the imaging equipment stores a front check value corresponding to the serial number;
if yes, the imaging device compares the pre-check value with the check value;
the imaging equipment judges whether the comparison result meets a preset condition;
if yes, the imaging device sends a legal verification result to the consumable chip, and verification is passed.
Preferably, if the imaging device does not store the serial number and/or the pre-verification value corresponding to the serial number;
the imaging device stores the received check value and marks the check value as a pre-check value;
the imaging device sends a legal verification result to the consumable chip.
Preferably, the preset condition is: the verification value is less than or equal to the pre-verification value or the verification value is greater than or equal to the pre-verification value.
Preferably, if the verification result returned by the imaging device according to the serial number and/or the verification value is obtained, and the verification result is judged to be an illegal verification result;
a new serial number is switched or a new consumable chip is replaced.
Preferably, before the step of generating the check value according to the serial number of the consumable chip, the method further comprises the following steps:
after the serial number is read, the consumable chip generates a first random number;
acquiring a second random number sent by imaging equipment;
generating first target data according to a secret key, a first random number and a second random number which are stored in advance in a chip, and sending the first random number, the second random number and the first target data to imaging equipment;
acquiring an initial verification result generated by the imaging device according to the first random number, the second random number and the first target data, and judging whether the initial verification result is legal or not;
and if the initial verification result is legal, executing the step of generating the verification value according to the serial number of the consumable chip.
Preferably, after generating first target data according to a key, a first random number and a second random number stored in advance in the chip and transmitting the first random number, the second random number and the first target data to the imaging device, acquiring an initial verification result generated by the imaging device according to the first random number, the second random number and the first target data in the step, and before judging whether the initial verification result is legal or not, the method further comprises the following steps:
the imaging equipment calculates a private key according to the serial number, and calculates second target data according to the private key, the first random number and the second random number;
the imaging device compares the first target data with the second target data;
and generating the initial verification result according to the comparison result.
The invention also provides a consumable chip, which comprises
The generation module is used for generating a check value according to the serial number of the consumable chip;
a storage module for storing the check value;
a first transmitting module for transmitting the check value to an imaging device;
the first acquisition module is used for acquiring a verification result returned by the imaging equipment according to the serial number and/or the verification value;
the first judging module is used for judging whether the verification result is a legal verification result or not; if yes, verifying to pass;
wherein the test value generated by the same serial number is a fixed value.
Preferably, the consumable chip further comprises,
the consumable chip is used for generating a first random number after the serial number is read;
a second acquisition module for acquiring a second random number transmitted by the imaging device;
the target data generation module is used for generating first target data according to a secret key, a first random number and a second random number which are stored in advance in the chip;
a second transmitting module for transmitting the first random number, the second random number, and the first target data to the imaging device;
the third acquisition module is used for acquiring an initial verification result generated by the imaging device according to the first random number, the second random number and the first target data;
the second judging module is used for judging whether the initial verification result is legal or not;
and the execution module is used for executing the step of generating the check value according to the serial number of the consumable chip after the judging result of the second judging module is that the initial verification result is legal.
The invention also provides a consumable container, which comprises a container body for storing consumable, and a consumable chip, wherein the container body is at least provided with an installation position, and the consumable chip is installed on the installation position.
The invention has the beneficial effects that:
compared with the prior art, the method and the device generate the check value relative to the consumable chip through the serial number of the consumable chip; and then the check value is sent to the imaging equipment, the imaging equipment checks the check value, and a check result is returned. And judging the validity of the verification result after the consumable chip acquires the verification result, and if the verification result is legal, indicating that the consumable chip passes the verification, the consumable chip can be normally used by the imaging equipment. Because the check value is a fixed value relative to the same serial number, that is, no matter how many times the consumable chip corresponding to the serial number is used, the check value returned when the consumable chip is checked by the imaging device is fixed, so that only if the check result of the check value is legal at a certain time, it is indicated that the consumable chip corresponding to the serial number can be repeatedly checked by the imaging device and used or that a plurality of chips with the same serial number can be checked by the imaging device and used, so that the consumable chip corresponding to the serial number can be recycled, and the waste caused by that the consumable chip cannot be used due to the fact that the serial number is not checked by the consumable chip is avoided.
Drawings
FIG. 1 is a flowchart of a consumable chip verification method according to an embodiment of the invention;
FIG. 2 is a flow chart of an imaging device generating a verification result from a verification value in an embodiment of the invention;
FIG. 3 is a flow chart of an imaging device identification serial number in an embodiment of the invention;
FIG. 4 is a flow chart of initial verification result generation in an embodiment of the invention;
fig. 5 is a block diagram of a consumable chip according to an embodiment of the invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings and detailed description below:
the embodiment provides a consumable chip verification method, which comprises the following steps:
referring to fig. 1, step S01, generating a check value according to a serial number of a consumable chip; wherein the test value generated by the same serial number is a fixed value. The check value may be N, which may be binary data, decimal data, or hexadecimal digits. Since the check value corresponds to a sequence number, the check value is fixed only with respect to the same sequence number, i.e. the check values generated by different sequence numbers may be different, but the check values generated by the same sequence number are the same. The generated check values are equal regardless of how many times consumable chips of the same serial number are operated.
Step S02, the check value is sent to imaging equipment; the verification value may be verified by the imaging device and a corresponding verification result may be generated by the imaging device from the verification value. Since the verification values generated by the same serial number are the same, if the verification result generated by the corresponding chip when communicating with the image forming apparatus for the first time is legal, the verification result generated thereafter is also legal.
Step S03, obtaining a verification result returned by the imaging equipment according to the serial number and/or the verification value, and judging whether the verification result is a legal verification result or not; if yes, step S04 is executed, otherwise, the serial number cannot be used by the imaging device, i.e. the consumable chip cannot pass the verification, and at this time, the serial number can be replaced or a new consumable chip can be replaced. The chip can store a plurality of serial numbers, and when one of the serial numbers cannot be used by the imaging device, the next serial number is switched to, and then the step S01 is executed, or of course, the step S01 can be executed after a new consumable chip is replaced.
Step S04, if the verification result returned to the consumable chip by the imaging device is a legal verification result, verification is passed, and the serial number of the chip can be used by the imaging device, namely the consumable chip can pass the verification.
Referring to fig. 2, as a preferred embodiment, after the step of transmitting the check value to the image forming apparatus, before the step of acquiring the verification result returned by the image forming apparatus according to the serial number and/or the check value (i.e., after step S02 and before step S03), the following steps may be further included, which are mainly a process in which the image forming apparatus generates the verification result according to the check value, and are mainly completed in the image forming apparatus:
and A01, after the imaging device acquires the check value, judging whether the imaging device stores a pre-check value corresponding to the serial number. After the consumable chip is communicated with the imaging device, if EEPROM data stored by the consumable chip can be verified by the imaging device, the consumable chip can send a verification value of the communication to the imaging device and store the verification value in a memory installed in the imaging device. If the consumable chip does not communicate with the imaging device, the imaging device does not store the check value of the serial number corresponding to the consumable chip, namely: and the imaging equipment does not store the serial number and/or a pre-verification value corresponding to the serial number. When the consumable chip is communicated with the imaging device for the first time, the imaging device stores the check value of the serial number corresponding to the consumable chip received this time and marks the check value as a front check value, and the imaging device sends a legal verification result to the consumable chip to indicate that the consumable chip can pass verification.
Step A02, if the imaging device stores the serial number and/or the pre-verification value corresponding to the serial number, it is indicated that the consumable chip corresponding to the corresponding serial number is verified by the imaging device, and the imaging device stores the pre-verification value. If the consumable chip corresponding to the serial number is verified by the imaging equipment again, the consumable chip can send the verification value corresponding to the serial number to the imaging equipment again. The imaging device compares the check value with a pre-check value stored at the time of the previous communication. Since the serial numbers of the same chip are the same, the pre-check value may be the same as the check value in general.
And step A03, the imaging equipment judges whether the comparison result meets a preset condition. If yes, the imaging device can allow consumable chips corresponding to the serial numbers to be used, and the check value is marked as a front check value; otherwise, the imaging device does not allow the consumable chip corresponding to the serial number to be used, and also prompts an error. The preset condition may be that the verification value is less than or equal to the previous verification value, or the verification value is greater than or equal to the previous verification value. The preset condition may be designed before shipment of the imaging apparatus. Because the check value generated by consumable chips with the same serial numbers is a fixed value, consumable chips with the same serial numbers can meet the preset condition no matter how many times the consumable chips with the same serial numbers are used in the same printer.
Taking the preset condition as an example that the verification value is smaller than or equal to the previous verification value, the verification process of the consumable chip verification method is described:
when a consumable chip communicates with imaging equipment for the A time, the consumable chip generates a check value N according to the serial number of the consumable chip and sends the check value N to the imaging equipment, the imaging equipment receives the check value N of the serial number corresponding to the consumable chip and compares the check value N with the front check value N ', when the N is smaller than or equal to the N ', the serial number can be used by the imaging equipment, the front check value N ' is covered by the check value N, then the check value N is marked as the front check value, and at the moment, the imaging equipment sends a legal verification result to the consumable chip. The pre-check value N' can be a check value reserved when the consumable chip with the same serial number communicates with the imaging device for the A-1 th time. When the N is larger than the N', the serial number can be used by the imaging equipment, and at the moment, the consumable chip with the new serial number can be switched to execute the verification process again with the imaging equipment, or the verification process can be executed again with the imaging equipment by replacing the new consumable chip. As a preferred embodiment, the verification value may be represented by the number of times the serial number is used by the image forming apparatus, or the serial number corresponds to the consumable remaining capacity or consumable consumption amount, or the like. Since the check value is a fixed value, the number of times the corresponding serial number is used, the remaining capacity or the consumption amount, etc. are not changed after the serial number is used by the printer.
And step A04, if the comparison result in the step A03 meets the preset condition, the imaging equipment sends a legal verification result to the consumable chip. If the imaging equipment judges that the comparison result does not meet the preset condition; the imaging device sends the illegal verification result to the consumable chip.
Referring to fig. 3, as another preferred embodiment, before the step of generating the check value according to the serial number of the consumable chip, the method further includes the following steps, wherein the step is mainly that the imaging device is a process of identifying the serial number:
step B01, after the serial number is read, the consumable chip generates a first random number. Typically, consumable chips are installed in imaging devices, which, after power-up, acquire a serial number and algorithmically verify the serial number.
And step B02, acquiring a second random number sent by the imaging device. After acquiring the serial number, the imaging device generates a second random number according to the serial number.
And B03, generating first target data according to the key, the first random number and the second random number which are stored in advance by the chip, and sending the first random number, the second random number and the first target data to the imaging equipment. The key may be preset. The imaging device may generate an initial verification result according to the first random number, the second random number and the first target data, and send the initial verification result to the consumable chip, and then execute step B04.
And step B04, acquiring an initial verification result generated by the imaging device according to the first random number, the second random number and the first target data, and judging whether the initial verification result is legal or not.
And step B05, if the initial verification result is legal, executing the step of generating the verification value according to the serial number of the consumable chip.
Referring to fig. 4, as a preferred scheme, after generating first target data according to a key, a first random number and a second random number stored in advance in a chip and transmitting the first random number, the second random number and the first target data to an imaging device, acquiring an initial verification result generated by the imaging device according to the first random number, the second random number and the first target data in step, and judging whether the initial verification result is legal or not (i.e. before step B03 and before step B04), the method further includes the following steps, wherein the following steps are mainly a process of generating the initial verification result when identifying a serial number:
and step C01, the imaging equipment calculates a private key according to the serial number, and calculates second target data according to the private key, the first random number and the second random number. The serial number may be a serial number obtained by the imaging device from the consumable chip. The serial number in the step can be identified by the imaging device, and the serial number in the step can be different from the serial number arranged in the EEPROM in the corresponding consumable chip.
In step C02, the imaging device compares the first target data with the second target data. The result of comparing the first target data with the second target is preset, and if the comparison result is a preset value or range, the consumable chip can be identified by the imaging device, otherwise, the consumable chip cannot be identified by the imaging device.
And step C03, generating the initial verification result according to the comparison result. Typically the structure of the comparison may be the result of a size comparison between the two, and then an initial verification result may be derived based on the size of the comparison result, e.g. if the comparison result is a preset value or range, the initial verification result is a valid verification result, otherwise not a valid verification result.
Referring to fig. 5, in an embodiment of the present invention, there is further provided a consumable chip, where the method for verifying a consumable chip may be the method for verifying a consumable chip described in the above embodiments, and the consumable chip includes:
and the generating module 1 is used for generating a check value according to the serial number of the consumable chip. Wherein the test value generated by the same serial number is a fixed value.
And the storage module 2 is used for storing the check value. The memory module in this embodiment includes a volatile memory SRAM and a nonvolatile memory EEPROM, the nonvolatile memory EEPROM is used to store EEPROM data such as a toner cartridge model, a manufacturer code, a serial number, and a production date, the metering area is set in the SRAM and used to store a toner residue, a total print amount, a consumed print number, a last print operation time, a use state of a print process, a verification value, and the like.
A first transmitting module 3 for transmitting the check value to the imaging device.
And the first acquisition module 4 is used for acquiring a verification result returned by the imaging device according to the verification value.
A first judging module 5 for judging whether the verification result is a legal verification result; if yes, verifying to pass; otherwise, the verification is not passed.
Preferably, the consumable chip may further comprise,
a random number generation module 6 for generating a first random number by the consumable chip after the serial number is read.
A second acquisition module 7 for acquiring a second random number transmitted by the imaging device.
The target data generating module 8 is configured to generate first target data according to a key, a first random number and a second random number stored in advance in the chip.
A second transmitting module 9 for transmitting the first random number, the second random number, and the first target data to the image forming apparatus.
And a third acquisition module 10, configured to acquire an initial verification result generated by the imaging device according to the first random number, the second random number and the first target data.
A second judging module 11 for judging whether the initial verification result is legal; if the consumable chip is legal, the consumable chip can be identified by the imaging equipment, otherwise, the consumable chip is not identified.
And the execution module 12 is configured to execute the step of generating the check value according to the serial number of the consumable chip after the determination result of the second determination module 11 is that the initial verification result is legal.
The invention also provides a consumable container, which comprises a container body for storing consumable and a consumable chip, wherein at least one installation position is arranged on the container body, the consumable chip is installed on the installation position, the consumable chip is the consumable chip described in each embodiment, and the verification method of the consumable chip is the verification method described in each embodiment.
The consumable chip verification method of the invention is to verify the serial number so that the corresponding consumable chip can be used by imaging equipment; the invention uses the check value generated by the same serial number as the fixed value, so the check value corresponding to each serial number received by the imaging equipment is the fixed value, and therefore, the consumable chip can be always verified by the imaging equipment no matter how many times the consumable chip is used after the consumable chip is verified by the imaging equipment for the first time. The verification method of the present invention is typically a verification of a serial number, which typically occurs after the EPPROM data of the consumable chip is recognized by the imaging device. The invention further includes the step of identifying the serial number prior to verifying the serial number, typically before the EPPROM data is identified by the imaging device.
It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the invention as defined in the appended claims.
Claims (9)
1. The consumable chip verification method is characterized by comprising the following steps of:
the consumable chip generates a check value according to the serial number of the consumable chip;
transmitting the serial number and the check value to imaging equipment;
acquiring a verification result returned by the imaging equipment according to the verification value, and judging whether the verification result is a legal verification result or not;
if yes, verifying to pass;
wherein, the check value generated by the same serial number is a fixed value;
the verification value is represented by the number of times the serial number is used by the imaging equipment or the consumable residual capacity or consumable consumption corresponding to the serial number;
the number of times, remaining capacity or consumption of the corresponding serial number is used after the serial number is used is not changed;
after the step of sending the verification value to the imaging device, before the step of obtaining the verification result returned by the imaging device according to the verification value and judging whether the verification result is legal, the method further comprises the following steps:
after the imaging equipment acquires the check value, judging whether the imaging equipment stores a front check value corresponding to the serial number;
if yes, the imaging device compares the pre-check value with the check value;
the imaging equipment judges whether the comparison result meets a preset condition;
if yes, the imaging device sends a legal verification result to the consumable chip, and verification is passed.
2. The consumable chip verification method according to claim 1, wherein if the imaging device does not store a pre-verification value corresponding to the serial number;
the imaging device stores the received check value and marks the check value as a pre-check value;
the imaging device sends a legal verification result to the consumable chip.
3. The consumable chip verification method according to claim 2, wherein the preset conditions are: the check value is less than or equal to the pre-check value or the check value is greater than or equal to the pre-check value.
4. The consumable chip verification method according to claim 1, wherein if a verification result returned by the imaging device according to the verification value is obtained, and the verification result is judged to be an illegal verification result;
a new serial number is switched or a new consumable chip is replaced.
5. The consumable chip verification method according to claim 1, further comprising, before the consumable chip generating a verification value step according to its own serial number, the steps of:
after the serial number is read, the consumable chip generates a first random number;
acquiring a second random number sent by imaging equipment;
generating first target data according to a secret key, a first random number and a second random number which are stored in advance in a chip, and sending the first random number, the second random number and the first target data to imaging equipment;
acquiring an initial verification result generated by the imaging device according to the first random number, the second random number and the first target data, and judging whether the initial verification result is legal or not;
and if the initial verification result is legal, executing the step of generating a verification value by the consumable chip according to the serial number of the consumable chip.
6. The consumable chip verification method according to claim 5, wherein after generating first target data according to a key, a first random number and a second random number stored in advance in the chip and transmitting the first random number, the second random number and the first target data to the imaging device, obtaining an initial verification result generated by the imaging device according to the first random number, the second random number and the first target data in the step and judging whether the initial verification result is legal or not, further comprising the steps of:
the imaging equipment calculates a private key according to the serial number, and calculates second target data according to the private key, the first random number and the second random number;
the imaging device compares the first target data with the second target data;
and generating the initial verification result according to the comparison result.
7. A consumable chip, characterized in that: comprising
The generation module is used for generating a check value according to the serial number of the consumable chip;
a storage module for storing the check value;
a first transmitting module for transmitting the check value to an imaging device;
the first acquisition module is used for acquiring a verification result returned by the imaging equipment according to the verification value;
the first judging module is used for judging whether the verification result is a legal verification result or not; if yes, verifying to pass;
wherein the check value generated by the same serial number is a fixed value;
the verification value is represented by the number of times the serial number is used by the imaging equipment or the consumable residual capacity or consumable consumption corresponding to the serial number;
the number of times, remaining capacity or consumption of the corresponding serial number is used after the serial number is used is not changed;
after the step of sending the verification value to the imaging device, before the step of obtaining the verification result returned by the imaging device according to the verification value and judging whether the verification result is legal, the method further comprises the following steps:
after the imaging equipment acquires the check value, judging whether the imaging equipment stores a front check value corresponding to the serial number;
if yes, the imaging device compares the pre-check value with the check value;
the imaging equipment judges whether the comparison result meets a preset condition;
if yes, the imaging device sends a legal verification result to the consumable chip, and verification is passed.
8. The consumable chip of claim 7, wherein: also included is a method of manufacturing a semiconductor device,
the consumable chip is used for generating a first random number after the serial number is read;
a second acquisition module for acquiring a second random number transmitted by the imaging device;
the target data generation module is used for generating first target data according to a secret key, a first random number and a second random number which are stored in advance in the chip;
a second transmitting module for transmitting the first random number, the second random number, and the first target data to the imaging device;
the third acquisition module is used for acquiring an initial verification result generated by the imaging device according to the first random number, the second random number and the first target data;
the second judging module is used for judging whether the initial verification result is legal or not;
the execution module is used for executing the step of generating the check value according to the serial number of the consumable chip after the judging result of the second judging module is that the initial verification result is legal;
after the step of sending the verification value to the imaging device, before the step of obtaining the verification result returned by the imaging device according to the verification value and judging whether the verification result is legal, the method further comprises the following steps:
after the imaging equipment acquires the check value, judging whether the imaging equipment stores a front check value corresponding to the serial number;
if yes, the imaging device compares the pre-check value with the check value;
the imaging equipment judges whether the comparison result meets a preset condition;
if yes, the imaging device sends a legal verification result to the consumable chip, and verification is passed.
9. The utility model provides a consumable container, includes the container body that is used for storing the consumable, is provided with one installation position on this container body at least, its characterized in that: the consumable chip is mounted on the mounting position, the consumable chip is as claimed in claim 7 or claim 8, and the verification method of the consumable chip is as claimed in any one of claims 1 to 6.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/080570 WO2018188071A1 (en) | 2017-04-14 | 2017-04-14 | Method for verifying consumable chip, consumable chip and consumable container |
| CN201710243693.0A CN108734253B (en) | 2017-04-14 | 2017-04-14 | Consumable chip verification method, consumable chip and consumable container |
| JP2018042290A JP6534467B2 (en) | 2017-04-14 | 2018-03-08 | Verification method of consumables tip, consumables tip and consumables container |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710243693.0A CN108734253B (en) | 2017-04-14 | 2017-04-14 | Consumable chip verification method, consumable chip and consumable container |
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| CN108734253A CN108734253A (en) | 2018-11-02 |
| CN108734253B true CN108734253B (en) | 2024-01-30 |
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| JP (1) | JP6534467B2 (en) |
| CN (1) | CN108734253B (en) |
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| CN110989312B (en) * | 2019-07-01 | 2022-12-09 | 极海微电子股份有限公司 | Consumable chip and consumable |
| CN113199870B (en) * | 2019-12-11 | 2022-06-28 | 珠海艾派克微电子有限公司 | Authentication method of consumable chip and printing consumable |
| CN111629118B (en) * | 2020-04-08 | 2024-05-10 | 广州众诺微电子有限公司 | Chip verification method, consumable chip and imaging box |
| CN111585847B (en) * | 2020-05-21 | 2021-08-31 | 四川虹美智能科技有限公司 | Detection system and method |
| CN112597450A (en) * | 2020-12-22 | 2021-04-02 | 深圳市道通科技股份有限公司 | Programmable chip program detection and storage method and programmable chip |
| CN113157225A (en) * | 2021-05-25 | 2021-07-23 | 广州众诺电子技术有限公司 | Method for switching serial numbers, consumable device and computer storage medium |
| CN113792351A (en) * | 2021-08-16 | 2021-12-14 | 珠海天威技术开发有限公司 | Consumable chip serial number generation method, consumable chip and consumable container |
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| CN108734253A (en) | 2018-11-02 |
| JP2018176723A (en) | 2018-11-15 |
| WO2018188071A1 (en) | 2018-10-18 |
| JP6534467B2 (en) | 2019-06-26 |
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