CN102087684B - Method for encrypting consumable items through radio frequency identification electronic tag - Google Patents
Method for encrypting consumable items through radio frequency identification electronic tag Download PDFInfo
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- CN102087684B CN102087684B CN2009102420938A CN200910242093A CN102087684B CN 102087684 B CN102087684 B CN 102087684B CN 2009102420938 A CN2009102420938 A CN 2009102420938A CN 200910242093 A CN200910242093 A CN 200910242093A CN 102087684 B CN102087684 B CN 102087684B
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Abstract
The invention provides a method for encrypting consumable items through a radio frequency identification electronic tag. By using a method of additionally arranging the radio frequency identification electronic tag on the consumable items of various devices and using the devices and the radio frequency identification electronic tag to communicate by a method for communicating through encryption information, the consumable items are encrypted and protected. The consumable items are encrypted by adopting the non-contact radio frequency identification electronic tag, so that the consumable items are not easy to rust and damage and the reliability is improved; the radio frequency identification electronic tag is initialized after the consumable items are assembled, thus the speed of initialization is greatly improved; the method is convenient to comply a plurality of groups of passwords and produce and manage and provides the possibility for complying different passwords according to different requirements; a module is packaged by using a physical method, so that all keys cannot be obtained by using a method of breaking a host program, and the stability for encryption is greatly improved; and by setting an automatic protecting function at the radio frequency identification electronic tag, the information security is ensured.
Description
Technical field
The present invention relates to a kind of consumptive material guard method, refer to that especially a kind of consumptive material being encrypted by radio electronic label has the anti-consumptive material guard method that cracks function.
Background technology
Along with the becoming increasingly abundant of functions of the equipments, precision are higher, a lot of equipment in use need constantly to change according to situation about using, typical in ink-cases of printers, colour band, and the drum of color laser printer, powder, such consumptive materials such as the transfer belt of label machine, ink-jet printer is common printing device, for modern office provides great convenience.For example existing ink-jet printer uses dismountable print cartridge to load mostly and prints the ink that uses, a lot of cartridge cases are equipped with chip, chip is provided with electronic module and is provided with a plurality of contacts, store the relevant information of print cartridge in the electronic module, as information such as print cartridge model, ink color, print cartridge ink inside surplus data.After print cartridge is packed ink-jet printer into, ink-jet printer namely reads the information that is stored in the electronic module, and judge whether this print cartridge is applicable to this ink-jet printer, judge simultaneously whether sufficient ink is arranged in the print cartridge, have only ink-jet printer to judge that print cartridge is suitable for and when storing sufficient ink, ink-jet printer just prints work.The ink remaining amount data of the electronic module record of existing part ink box chip are controlled by ink-jet printer, before the each printing of ink-jet printer, read the ink remaining amount data of storing in the electronic module earlier, and calculate the quantity of ink of consumption according to the type of each print paper, the quantity of print paper, then original ink remaining amount is deducted quantity of ink that this time print to consume and calculate ink remaining amount in the current print cartridge, at last these ink remaining amount data are write back in the electronic module.
Whether in addition, also some machine is to utilize chip on the master control borad to record the operating position of each consumptive material, detect consumptive material and use in the life span of regulation by resetting means or chip are set at consumptive material.
Above scheme has following these common defectives:
1, the chip on the consumptive material all adopts the contact contact to link to each other with main frame, those contact contacts exist easily get rusty, flimsy shortcoming, to such an extent as in start, reset or when monitoring the ink use amount in real time, can't effectively authenticate consumptive material.
2, those chips are simple data-storing only, are easy to be cracked, and make the use amount of consumptive material to be rewritten arbitrarily, to such an extent as to make the operating position of consumptive material and whether be that the judgement of original-pack consumptive material can not get guaranteeing, thus the normal operation that jeopardizes equipment.
3, those chips need just write corresponding data before being installed on consumptive material, thereby need prepare enough different chips at different consumptive materials when producing, and utilized the content easy crack of machine mainboard control chip, existed serious safety problem.
Because consumptive material itself is the key of the normal operation of system; and existing recognition methods can't be protected the safety of use information; exceed the time limit to use because of user's modification information easily; perhaps use some fake and forged products; and influence the normal operation of equipment; so just need a kind of method that can identify the safety of the consumptive material true and false and behaviour in service, thereby help main frame can judge the legitimacy of consumptive material (consumable accessory), further protect the operation of total system device.
Summary of the invention
For the destruction that prevents from using non-original factory and the pseudo-consumptive material that emits that equipment is produced; fundamental purpose of the present invention is to provide a kind of radio electronic label that installs additional on consumptive material; communicate by letter by the method for getting in touch with through enciphered message with radio electronic label by equipment, consumptive material is encrypted the method for protection.
Of the present invention time a purpose is to provide the method for a kind of convenient and swift consumptive material flexibly identification record by the method that installs radio electronic label (RFID) on the consumptive material of various device additional.
Further purpose of the present invention is to provide a kind of encryption method of protecting the consumable information safe and complete.
For reaching above-mentioned purpose, the technological means that the present invention adopts is:
A kind of method that consumptive material is encrypted by radio electronic label; it is characterized in that; by on the consumptive material of various device, installing the method for radio electronic label additional, communicate by letter by the method for getting in touch with through enciphered message with radio electronic label by equipment, consumptive material is encrypted protection.
The advantage of method of the present invention is:
1, adopts contactless radio electronic label that consumptive material is encrypted, overcome that easily get rusty in the contact contact, flimsy shortcoming, increased reliability.
2, adopt contactless radio electronic label that consumptive material is encrypted, can after the consumptive material assembling, carry out initialization to radio electronic label again, improved initialized speed greatly, be convenient to very much work out simultaneously multiple cipher.
3, owing to improved the initialized speed of radio electronic label, be convenient to work out multiple cipher simultaneously, therefore very convenient production and management.For the different password of different demand establishments provides possibility, can pass through the different password of establishment as different clients or zones of different, thus a lot of practical problemss such as solution falsifying.
4, owing to add in the radio-frequency (RF) tag module for reading and writing separate processor arranged, the independent program of use, and with physical method module is encapsulated, can't obtain whole keys by the method that cracks mainframe program, thereby improve the stability of encrypting greatly.
5, by at radio electronic label automatic protection functions being set, when having the people to attempt to crack encryption, cracking for several times and just damage automatically, ensure information security.
Description of drawings
Fig. 1 is the workflow diagram of a kind of method that consumptive material is encrypted by radio electronic label of the present invention.
Embodiment
For purpose of the present invention, technical scheme are further understood, now also be described below in detail by reference to the accompanying drawings with specific embodiment:
For the destruction that prevents from using non-original factory and the pseudo-consumptive material that emits that equipment is produced; we have designed a kind of by install the method for radio electronic label (RFID) additional on the consumptive material of various device; and by main frame and radio electronic label by communicating by letter through the method for enciphered message contact, so that consumptive material is encrypted protection.
A kind of method that consumptive material is encrypted by radio electronic label of the present invention, radio electronic label at first is installed on consumptive material (easy-consuming fitting), and on Device Host, be provided with a radio frequency module for reading and writing of distinguishing with interpretation RFID in addition, writing key respectively on the Device Host and on the radio electronic label of consumptive material, version information, authentication information etc.This radio frequency module for reading and writing can integrate with the form of Device Host with general module, but be preferably separate processor and the independent program used, and with physical method this radio frequency module for reading and writing is encapsulated, thereby can't obtain whole keys by the method that cracks mainframe program, thereby improve the stability of encrypting greatly.In preferred version, key separated into two parts on the equipment is placed on respectively and reaches in the radio frequency module for reading and writing in the device memory (processing module, memory module), be a complete key through the radio frequency module for reading and writing with two parts cipher key combinations again, then be preset with this complete key on the label.In device power-up or when resetting, equipment at first needs to use this complete key that the radio electronic label on the consumptive material is authenticated, i.e. completing steps S6.After the authentication success, carry out step S9: produce session key by the radio frequency module for reading and writing, equipment uses session key, and the radio electronic label on the consumptive material is authenticated again, starts the ciphertext transmission.Equipment can be regularly in executable operations or not timing ground the radio electronic label on the consumptive material is carried out the ciphertext read-write, have only and just carry out the operation of being correlated with after read and write successfully, equipment will be recorded to the quantity situation of each consumptive material use among the radio electronic label.After the consumptive material use amount that records in the radio electronic label met or exceeded theoretical value, equipment pointed out consumptive material to finish using automatically, the consumptive material that requires the user more to renew.If detect less than encrypting radio electronic label when equipment uses, can't work.Equipment will be periodically when executable operations to the judging of the use amount that records in the radio electronic label on the consumptive material, have only when the use amount that records in the radio electronic label to be lower than under the situation of theoretical value of apparatus settings, equipment could be carried out relevant operation.In addition, this radio electronic label can arrange to be prevented cracking function, when the people wants to crack, and three password bads, the chip in the radio electronic label will damage automatically, forever can't recover.This method also can be applied to above the equipment of those critical components that must regularly replace, and reminds the user regularly more to go the generation of the problem that prevents.
This radio electronic label is preferably the serial radio-frequency card of the radio-frequency card " Crypto RF Card " by name that meets ISO14443 TYPE B standard in present embodiment, its advantage is, it should provide the eeprom memory that 1K bits-64K bits does not wait in the sheet by the series card according to different models, and the card of different models except capacity with number of partitions is different, the hardware interface of supporting and command set are compatible fully, make things convenient for upgrading and the cost control of system; And support memory block planning: EEPROM adopts popular zone configuration in the sheet.The number of partitions of the card of different model is between 4-16; Can pass through password, the configuration of authority realizes merging and the partition of subregion, is fit to very much one card for multiple uses; The password of this card, key, configuration information are stored in one independently in the configure partition in addition.Do not take the space of user's partition holding, the great like this operating factor of memory space that improved.And be conducive to the unified management of card.Especially each key, password have and independently prevent malicious sabotage error counter SCAC, SC checks when correct, SC is readable and erasable, SC checks when incorrect, and SC can not read with erasable and the SCAC value subtracted one, and the SCAC initial value is 4, SC checks every wrong 1 time SCAC is subtracted 1, SCAC equals at 0 o'clock, and the card self-destruction reverts to initial value 4 if SC checks correct SCAC.This radio-frequency card supports writing of card to latch in addition.
In order further to guarantee the security of information, except utilizing the cryptographic means that has of those radio electronic labels itself, the present invention further provides the encipherment scheme that a kind of printer cooperates with this radio electronic label: (following said main frame refers to processing module and the memory module of existing printer)
At first, carry out main frame initialization S1, the program start of main frame must move information such as necessary initial configuration to the fetch program in the encryption chip on the mainboard, just can finish the initialization of main frame, normal operation (namely having the program of sub-fraction key to leave in this encryption chip).
Secondly, authenticate key is divided into two parts, write respectively in the radio frequency module for reading and writing on main frame and the main frame, after this radio frequency module for reading and writing is a complete key with two parts cipher key combinations, and use this complete key that the radio electronic label on the consumptive material is authenticated.
Owing to separate processor is arranged in the radio frequency module for reading and writing, the independent program of use, and with physical method module is encapsulated, thereby can guarantee to obtain whole keys by the method that cracks mainframe program, increase the security of information.
Below be that example specifies its implementation process with the thermal transfer printer, and as main process equipment in detail this scheme is described in detail with the ARM single-chip microcomputer, but is not limited to this kind main process equipment.
One, the storage of enciphered message
1, at first, an encryption chip is housed in addition on the mainboard of ARM single-chip microcomputer, the initial key that computer program stored operation in the inside is necessary, version information, authentication information etc., the confidentiality of assurance program.
2, store the access times of printhead in the encryption chip of radio electronic label, print length, use amount, and relevant authentication information.
3, in addition, the authenticate key of radio frequency encryption chip authentication divides two parts storage.A part is stored in the ARM single-chip microcomputer; Another part is stored in the ARM single-chip microcomputer radio frequency module for reading and writing.
Be responsible for reading key part in the ARM single-chip microcomputer by the radio frequency module for reading and writing, and in conjunction with the part that is stored in the radio frequency module for reading and writing, finish the initial authentication process of encryption chip, produce and session key is provided also for the ARM single-chip microcomputer.The ARM single-chip microcomputer utilizes this session key, carries out the encrypting read/write of data, with the operating position of record ink ribbon.
Two, ciphering process is described:
Device initialize: use PC software before the ARM single-chip microcomputer dispatches from the factory, the mainboard encryption chip is carried out initialization (initial key, version information, authentication information etc.).
The initialization of radio frequency module for reading and writing: the initialized PC software that utilizes simultaneously of ARM single-chip microcomputer, the part of colour band authenticate key is stored into radio frequency module for reading and writing, another part deposits the storer (storer of Device Host management) of ARM single-chip microcomputer in.
The colour band initialization: the label on the consumptive material can write complete authenticate key at initialization apparatus independently before embedding colour band, and relevant authentication information, and access times etc. are initialized as zero, or the available number of input consumptive material.Because this radio electronic label is contactless, thereby partly or entirely also can before dispatching from the factory, the writing of those information, perhaps returns and reinitialize after factory reproduces.
Start shooting at hardware, or when resetting, the ARM single-chip microcomputer need use initial key that encryption chip is authenticated (being step S2) again, behind the authentication success, the ARM single-chip microcomputer is the necessary initializes configuration information (being step S4) of fetch program operation from encryption chip, make program be able to normal operation, if authenticate when passing through, then program can't be moved (being step S3).
Print when maybe needing to read consumable information when needs in the program normal course of operation, the ARM single-chip microcomputer passes to radio frequency module for reading and writing (being step S5) with the part colour band authenticate key of its preservation, the radio frequency module for reading and writing will be stored in another part key and the synthetic complete key of the set of cipher key come of ARM single-chip microcomputer transmission wherein, and use this key by antenna the radio electronic label on the consumptive material to be carried out authentication initialization (being step S7), if authentication is not passed through, the prompting consumptive material then can't be proceeded not to (being step S8).After authentication is passed through, the radio frequency module for reading and writing produces session key, the ARM single-chip microcomputer uses this session key that the radio-frequency (RF) tag on the colour band is authenticated again, start the ciphertext transmission, the use information of colour band is transmitted by the radio frequency module for reading and writing, and the data of being finished radio electronic label by the radio frequency module for reading and writing write.This scheme optimization is for being provided with separate processor in the radio frequency module for reading and writing, use independent program, and with physical method module is encapsulated, and can be provided with the anti-module that cracks, thereby can't obtain whole keys by the method that cracks mainframe program, thereby improved the stability of encrypting greatly.
In program, the ARM single-chip microcomputer can carry out the ciphertext read-write to hardware encryption chip or colour band radio-frequency (RF) tag in not timing ground when carrying out key operation.Have only and just carry out relevant operation after reading and writing successfully.
The advantage of this cipher mode:
Owing to adopted contactless radio electronic label that consumptive material is encrypted, overcome that easily get rusty in the contact contact, flimsy shortcoming, increased reliability.
Adopt contactless radio electronic label that consumptive material is encrypted, can after the consumptive material assembling, carry out initialization to radio electronic label again, improved initialized speed greatly, be convenient to very much work out simultaneously multiple cipher.
Owing to improved the initialized speed of radio electronic label, be convenient to work out multiple cipher simultaneously, therefore very convenient production and management.For the different password of different demand establishments provides possibility, can pass through the different password of establishment as different clients or zones of different, thus a lot of practical problemss such as solution falsifying.
Owing to adding in the radio-frequency (RF) tag radio frequency module for reading and writing separate processor is arranged in addition, the independent program of using, and with physical method module is encapsulated, thereby can't obtain whole keys by the method that cracks mainframe program, thus the stability of encrypting improved greatly.
Claims (4)
- One kind by radio electronic label to the method that consumptive material is encrypted, it is characterized in that:At first on the consumptive material of various device, install radio electronic label additional, and communicate by letter by the method for getting in touch with through enciphered message with radio electronic label by equipment, consumptive material is encrypted protection, authenticates or reads and writes;It is to write authenticate key at equipment, radio electronic label at consumptive material writes complete authenticate key, version information, authentication information simultaneously, device power-up, reset and in real time the monitoring in, equipment at first uses this complete key that the radio electronic label on the consumptive material is carried out initial authentication, and authentication success is just carried out relevant operation later on;Described equipment is provided with processing module, memory module and radio frequency module for reading and writing, the part of the authenticate key of consumptive material is write in this processing module and the memory module, another part writes in this radio frequency module for reading and writing, and this radio frequency module for reading and writing uses separate processor and independent program, with physical method this radio frequency module for reading and writing is encapsulated;And an encryption chip is housed on the mainboard of equipment in addition, this encryption chip has program stored therein and moves necessary initial key, version information, authentication information, is used for carrying out the mainboard device authentication; In the encryption chip on this equipment mainboard behind the canned data authentication success, the processing module of equipment, the part authenticate key that memory module will wherein be preserved passes to the radio frequency module for reading and writing, the synthetic complete key of set of cipher key that another part key in this radio frequency module for reading and writing and equipment pass over will be stored in, this radio frequency module for reading and writing uses this complete key by antenna the radio electronic label on the consumptive material to be carried out authentication initialization, after the authentication initialization of this radio electronic label passes through, produce session key by the radio frequency module for reading and writing, equipment uses this session key that the radio-frequency (RF) tag on the consumptive material is authenticated again, start the ciphertext transmission, the use information of consumptive material is transmitted by the radio frequency module for reading and writing, and the data of being finished radio electronic label by the radio frequency module for reading and writing write;In addition, this radio electronic label is provided with encryption chip, wherein stores access times, print length, use amount and the authentication information of printhead, and this encryption chip is used for carrying out the authentication initialization of radio electronic label.
- 2. the method that consumptive material is encrypted by radio electronic label as claimed in claim 1, it is characterized in that, this radio electronic label arranges the anti-function that cracks, when the people wants to crack, when continuous password bad number of times reaches setting value, chip in the radio electronic label will damage automatically, forever can't recover.
- As claimed in claim 1 by radio electronic label to the method that consumptive material is encrypted, it is characterized in that this radio electronic label is Crypto RF Card series radio-frequency card.
- As claimed in claim 1 by radio electronic label to the method that consumptive material is encrypted, it is characterized in that this key, version information, authentication information are stored in the independently configure partition of radio electronic label chip.
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| CN2009102420938A CN102087684B (en) | 2009-12-04 | 2009-12-04 | Method for encrypting consumable items through radio frequency identification electronic tag |
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| CN2009102420938A CN102087684B (en) | 2009-12-04 | 2009-12-04 | Method for encrypting consumable items through radio frequency identification electronic tag |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102339369B (en) * | 2011-08-18 | 2014-03-19 | 珠海天威技术开发有限公司 | MCU (Micro-programmed Control Unit) information protection method |
| CN103514470A (en) * | 2012-06-18 | 2014-01-15 | 深圳市博思得科技发展有限公司 | Anti-fake consumable item and application method thereof |
| CN104924784B (en) * | 2014-03-17 | 2017-07-04 | 诚研科技股份有限公司 | Consumable management method and equipment thereof |
| CN106452797A (en) * | 2016-11-30 | 2017-02-22 | 美的智慧家居科技有限公司 | Consumable and equipment pairing method, consumable use method, consumable and equipment |
| CN107194210B (en) * | 2017-05-05 | 2019-07-30 | 厦门芯阳科技股份有限公司 | A kind of anti-crack method of single-chip microcontroller code |
| CN108009416A (en) * | 2017-12-01 | 2018-05-08 | 武汉瑞纳捷电子技术有限公司 | Consumptive material authentication device and method based on RF tag |
| CN109291661A (en) * | 2018-11-29 | 2019-02-01 | 珠海趣印科技有限公司 | A kind of printing imaging system |
| CN110459307A (en) * | 2019-07-11 | 2019-11-15 | 老肯医疗科技股份有限公司 | A kind of system for tracing and managing and tracing management method of medical supplies |
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| CN101079110A (en) * | 2007-04-19 | 2007-11-28 | 上海复旦天臣新技术有限公司 | System for article mark and identification, marking method and identification method |
| CN101177087A (en) * | 2006-11-08 | 2008-05-14 | 上海华虹集成电路有限责任公司 | Non-contact type examination certificate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101177087A (en) * | 2006-11-08 | 2008-05-14 | 上海华虹集成电路有限责任公司 | Non-contact type examination certificate |
| CN101079110A (en) * | 2007-04-19 | 2007-11-28 | 上海复旦天臣新技术有限公司 | System for article mark and identification, marking method and identification method |
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