CN105611573A - Method and apparatus for implementing Bluetooth retransmission prevention - Google Patents

Method and apparatus for implementing Bluetooth retransmission prevention Download PDF

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Publication number
CN105611573A
CN105611573A CN201510962272.4A CN201510962272A CN105611573A CN 105611573 A CN105611573 A CN 105611573A CN 201510962272 A CN201510962272 A CN 201510962272A CN 105611573 A CN105611573 A CN 105611573A
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CN
China
Prior art keywords
data
receive
bluetooth equipment
instruction
sequence number
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Granted
Application number
CN201510962272.4A
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Chinese (zh)
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CN105611573B (en
Inventor
陆舟
于华章
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Feitian Technologies Co Ltd
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Feitian Technologies Co Ltd
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Priority to CN201510962272.4A priority Critical patent/CN105611573B/en
Publication of CN105611573A publication Critical patent/CN105611573A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

The present invention discloses a method and apparatus for implementing Bluetooth retransmission prevention, belonging to the field of communications. The method comprises the steps that: a Bluetooth device extracts a first serial number in received data from a terminal device, judges whether the first serial number is matched with a second serial number saved in the Bluetooth device or not, if so, sends an execution result saved corresponding to the second serial number to the terminal device, and continues to extract the first serial number in the received data from the terminal device, otherwise, updates the second serial number, executes a corresponding operation according to the received data to obtain an execution result, and saves the obtained execution result corresponding to the second serial number and sends the second serial number to the terminal device. By means of the technical solution of the present invention, when a terminal device communicates with a Bluetooth device, the Bluetooth device can maintain the serial number sent by the terminal device, to prevent a communication failure due to the fact that the terminal device retransmits data, thereby improving the instruction processing speed.

Description

Implementation method and the device of the anti-repeating transmission of a kind of bluetooth
Technical field
The present invention relates to the communications field, relate in particular to implementation method and the device of the anti-repeating transmission of a kind of bluetooth.
Background technology
In prior art, terminal device and bluetooth equipment while carrying out communication, do not have ACK (English full name:Acknowledgement, Chinese full name: acknowledge character) response, terminal device can not confirm that bluetooth equipment isThe no data that successfully receive communication, there will be following two kinds of situations: (one) bluetooth equipment will receiveData processed result returns in the process of terminal device and occurs mistake, causes terminal device successfully not receive;(2) terminal device receives the data processed result that bluetooth equipment returns, but does not have in default durationThe data processed result receiving is deciphered in success; When above-mentioned two situations occur, terminal device meeting retransmission data,And bluetooth equipment has received the data before retransmitting, thereby cause Communications failure, reduced instructionProcessing speed.
Summary of the invention
The object of the invention is, in order to overcome the deficiencies in the prior art, provides the realization side of the anti-repeating transmission of a kind of bluetoothMethod and device.
The implementation method that the invention provides the anti-repeating transmission of a kind of bluetooth, comprising:
Step S1: bluetooth equipment extract receive from the First ray number in the data of terminal device, sentenceWhether the second sequence number that disconnected described First ray number is preserved with described bluetooth equipment mates, and is to perform stepS2, otherwise execution step S3;
Step S2: described bluetooth equipment will send to institute with the execution result of the corresponding preservation of described the second sequence numberState terminal device, return to step S1;
Step S3: described bluetooth equipment upgrades described the second sequence number, according to the data that receive, carries out phaseShould operate, obtain execution result, preserve and send corresponding with described the second sequence number the execution result obtainingGive described terminal device, return to step S1.
Alternatively, before described step S1, also comprise:
Steps A 1: described bluetooth equipment judges whether to receive the data from described terminal device, is to holdRow steps A 2, otherwise continue execution step A1;
Steps A 2: described bluetooth equipment judges that whether the data that receive are correct, is to perform step S1, noOrganization Error Analysis reply data sends to described terminal device, returns to steps A 1.
Alternatively, judge described bluetooth equipment when described steps A 1 and receive the number from described terminal deviceAccording to time, also comprise: described bluetooth equipment judges the state of self, as described in bluetooth equipment in busy condition,The data from described terminal device that receive are disregarded, continue current operation, as described in bluetoothEquipment, in idle condition, is carried out described steps A 2.
Alternatively, described bluetooth equipment judges that whether the data that receive are correct, is specially:
Whether the check bit of the data that receive described in judgement is correct;
Whether the form of the data that receive described in judgement is correct;
If judged result is be, the data that receive described in are correct, otherwise described in the data that receiveMistake.
Whether the check bit of the data that receive described in described judgement is correct, is specially: described bluetooth equipment rootOther partial datas of the described data that receive being removed to check bit according to preset algorithm carry out computing and obtain newThe value of check bit, the value that judges the new check bit that computing obtains with described in the check bit of the data that receiveWhether be worth identically, if so, described in confirming, the check bit of the data that receive is correct, otherwise, confirm instituteState the check bit mistake of the data that receive;
Whether the form of the data that receive described in described judgement is correct, is specially: described bluetooth equipment judgementWhether the form of the described data that receive is consistent with default form, if so, described in confirming, receivesThe correct format of data, otherwise, the format error of the data that receive described in confirmation.
In described step S1, described bluetooth equipment extract receive from first in the data of terminal deviceSequence number, is specially: described bluetooth equipment is according to the self terminal that comes receiving described in described default form extractionData in the data of equipment in default byte.
Alternatively, wrap for when the data that described bluetooth equipment receives morely, carry out many data receivers, described inWhen step S1 judges described First ray number with described the second sequence numbers match, also comprise:
Whether the data that receive described in described bluetooth equipment judges are the last item data, are to number of retransmissionsAccording to disregarding, continue current operation, otherwise retransmission data is disregarded, wait for and receive next data,Continue to carry out described step S1.
Whether the described data that receive described in judging are the last item data, are specially: judge described receptionTo data in data in default byte whether be preset data.
Alternatively, described bluetooth equipment judge described First ray number and described the second sequence numbers itAfter, also comprise:
Described bluetooth equipment judges whether described the second sequence number and default step-length sum equal described First rayNumber;
Described bluetooth equipment upgrades described the second sequence number, is specially:
When described bluetooth equipment is judged described the second sequence number and described default step-length sum equals described firstAfter sequence number, described bluetooth equipment upgrades described the second sequence number.
Described bluetooth equipment upgrades the second sequence number, is specially:
Described bluetooth equipment is described First ray number by described the second sequence number update;
Or,
Described the second sequence number is added default step-length by described bluetooth equipment, using the result obtaining after upgradingThe second sequence number.
In described step S4, described bluetooth equipment, according to the data that receive, is carried out corresponding operating, is heldRow result, is specially:
In the time that the described data that receive are ciphertext signature command, described bluetooth equipment docks according to preset algorithmThe ciphertext signature command of receiving is decrypted, and obtains expressly signature command, according to the plaintext signature command obtainingSelection algorithm, carries out signature operation according to the algorithm of selecting to message to be signed in described plaintext signature command,Obtain the result of signing, generate signature response according to the signature result obtaining, using described signature response as describedExecution result;
When the described data that receive are ciphertext while obtaining random number instruction, described bluetooth equipment is according to pre-imputationMethod is obtained random number instruction to the ciphertext receiving and is decrypted, and obtains expressly obtaining random number instruction, according toThe plaintext obtaining obtains random number instruction, and call hardware random number engine and generate hardware random number seed, according toThe hardware random number seed generating generates pseudo random number, generates random number response according to the pseudo random number generating,Described random number is responded as described execution result;
In the time that the described data that receive are the instruction of ciphertext checking PIN code, described bluetooth equipment is according to pre-imputationMethod is decrypted the ciphertext checking PIN code instruction receiving, and obtains the instruction of plain text authentication PIN code, judgementWhether the PIN code in the instruction of described plain text authentication PIN code is identical with the PIN code that described bluetooth equipment is preserved,If identical, generate the correct PIN that tests of checking PIN code and correctly respond, described in inciting somebody to action, test PIN and correctly respondAs described execution result, otherwise generate checking PIN code mistake test PIN errored response, will described in test PINErrored response is as described execution result;
When the described data that receive are that ciphertext generates key during to instruction, described bluetooth equipment is according to pre-imputationMethod generates key to the ciphertext receiving instruction is decrypted, obtains expressly generating key to instruction, according toThe plaintext obtaining generates key to instruction, checks in key storage district whether have key, if existed,Using the PKI existing as described execution result, otherwise generate RSA or SM2 unsymmetrical key pair, will generateThe PKI of unsymmetrical key centering as described execution result.
The present invention also provides the implement device of the anti-repeating transmission of a kind of bluetooth, comprising:
Extraction module, for extracting the First ray number of the data from terminal device that receive;
Memory module, for preserving the second sequence number and the execution result corresponding with described the second sequence number;
The first judge module, for judging whether described First ray number mates with described the second sequence number;
Sending module, for judging described First ray number and described the second order when described the first judge moduleWhen row number mate, execution result corresponding with described the second sequence number in described memory module is sent to terminalEquipment;
More new module, for judging described First ray number and described the second order when described the first judge moduleWhen row number do not mate, upgrade described the second sequence number;
Processing module, for according to the data that receive, carries out corresponding operating, obtains execution result;
Described memory module, specifically for execution result and described the second sequence that described processing module is obtainedNumber corresponding preservation;
Described sending module, also sends to described terminal to establish for the execution result that described processing module is obtainedStandby.
Alternatively, described device also comprises:
The second judge module, for judging whether described device receives the data from described terminal device;
The 3rd judge module, receives from described for judging described device when described the second judge moduleWhen the data of terminal device, whether the data that judgement receives are correct;
Described sending module, also for judging when described the 3rd judge module the data that described device receivesWhen incorrect, Organization Error Analysis reply data sends to described terminal device, triggers described the second judge module;
Described extraction module, specifically for judging when described the 3rd judge module the number that described device receivesWhen correct, the First ray number in the data that receive described in extraction.
Alternatively, described device also comprises:
The 4th judge module, receives from described for judging described device when described the second judge moduleWhen the data of terminal device, judge the state of described device, as described in device in busy condition, dockingThe data from described terminal device of receiving are disregarded, continue current operation, as described in device in skyNot busy state, triggers described the 3rd judge module.
Alternatively, described the 3rd judge module, specifically for:
Whether the check bit of the data that receive described in judgement is correct;
Whether the form of the data that receive described in judgement is correct;
If judged result is be, trigger described extraction module, otherwise trigger described sending module.
Whether the check bit of the data that receive described in described the 3rd judge module judgement is correct, specifically for rootOther partial datas of the described data that receive being removed to check bit according to preset algorithm carry out computing and obtain newThe value of check bit, the value that judges the new check bit that computing obtains with described in the check bit of the data that receiveWhether be worth identically, if so, described in confirming, the check bit of the data that receive is correct, otherwise, confirm instituteState the check bit mistake of the data that receive;
Whether the form of the data that receive described in described the 3rd judge module judgement is correct, specifically for judgementWhether the form of the described data that receive is consistent with default form, if so, described in confirming, receivesThe correct format of data, otherwise, the format error of the data that receive described in confirmation.
Described extraction module, specifically for default in the data that receive described in extracting according to described default formData in byte.
Alternatively, described device also comprises:
The 5th judge module, wraps for for the data that receive when described device more, carries out many data receivers,When described the first judge module is judged described First ray number with described the second sequence numbers match, described in judgementWhether the data that receive are the last item data, are retransmission data to be disregarded, and continue current operation,Otherwise retransmission data is disregarded, waited for and receive next data, trigger described extraction module.
Whether the data that receive described in described the 5th judge module judges are the last item data, specifically forWhether the data in the data that receive described in judging in default byte are preset data.
Alternatively, described device also comprises:
The 6th judge module, for judging described First ray number and described the when described the first judge moduleWhen two sequence numbers, judge whether described the second sequence number and default step-length sum equal described the first orderRow number;
Described more new module, specifically for judging that when described the 6th judge module described the second sequence number is with defaultWhen step-length sum equals described First ray, upgrade described the second sequence number.
Described more new module, specifically for:
Be described First ray number by described the second sequence number update;
Or,
Described the second sequence number is added to default step-length, the second sequence number using the result obtaining after upgrading.
Described processing module, specifically for:
In the time that the described data that receive are ciphertext signature command, described processing module is docked according to preset algorithmThe ciphertext signature command of receiving is decrypted, and obtains expressly signature command, according to the plaintext signature command obtainingSelection algorithm, carries out signature operation according to the algorithm of selecting to message to be signed in described plaintext signature command,Obtain the result of signing, generate signature response according to the signature result obtaining, using described signature response as describedExecution result;
When the described data that receive are ciphertext while obtaining random number instruction, described processing module is according to pre-imputationMethod is obtained random number instruction to the ciphertext receiving and is decrypted, and obtains expressly obtaining random number instruction, according toThe plaintext obtaining obtains random number instruction, and call hardware random number engine and generate hardware random number seed, according toThe hardware random number seed generating generates pseudo random number, generates random number response according to the pseudo random number generating,Described random number is responded as described execution result;
In the time that the described data that receive are the instruction of ciphertext checking PIN code, described processing module is according to pre-imputationMethod is decrypted the ciphertext checking PIN code instruction receiving, and obtains the instruction of plain text authentication PIN code, judgementWhether the PIN code in the instruction of described plain text authentication PIN code is identical with the PIN code that described device is preserved, ifIdentical, generate the correct PIN that tests of checking PIN code and correctly respond, described in inciting somebody to action, test PIN and correctly respond conductDescribed execution result, otherwise generate checking PIN code mistake test PIN errored response, will described in test PIN mistakeMistake response is as described execution result;
When the described data that receive are that ciphertext generates key during to instruction, described processing module is according to pre-imputationMethod generates key to the ciphertext receiving instruction is decrypted, obtains expressly generating key to instruction, according toThe plaintext obtaining generates key to instruction, checks in key storage district whether have key, if existed,Using the PKI existing as described execution result, otherwise generate RSA or SM2 unsymmetrical key pair, will generateThe PKI of unsymmetrical key centering as described execution result.
The present invention compared with prior art, has the following advantages: when terminal device and bluetooth equipment carry out communication,The sequence number of the data that bluetooth equipment can maintenance terminal equipment issues, prevents terminal device retransmission data and leadsThe Communications failure causing, has improved the processing speed of instruction.
Brief description of the drawings
For the clearer explanation embodiment of the present invention or technical scheme of the prior art, below will be to implementingIn example or description of the Prior Art, the accompanying drawing of required use does simple introduction, apparently, the following describesIn accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not payingGo out under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The flow chart of the implementation method of the anti-repeating transmission of a kind of bluetooth that Fig. 1 provides for the embodiment of the present invention one;
The flow process of the implementation method in the anti-repeating transmission of a kind of bluetooth of when signature that Fig. 2 provides for the embodiment of the present invention twoFigure;
The implementation method of the anti-repeating transmission of a kind of bluetooth in the time obtaining random number that Fig. 3 provides for the embodiment of the present invention threeFlow chart;
The implementation method in checking anti-repeating transmission of a kind of bluetooth when PIN code that Fig. 4 provides for the embodiment of the present invention fourFlow chart;
Fig. 5 for the embodiment of the present invention five provide generate key to time a kind of bluetooth anti-repeating transmission implementation methodFlow chart;
The implement device figure of the anti-repeating transmission of a kind of bluetooth that Fig. 6 provides for the embodiment of the present invention six.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearlyChu, intactly description, obviously, described embodiment is only the present invention's part embodiment, instead ofWhole embodiment. Based on the embodiment in the present invention, those skilled in the art are not making creative laborThe every other embodiment obtaining under moving prerequisite, belongs to the scope of protection of the invention.
Embodiment mono-
The embodiment of the present invention one provides the implementation method of the anti-repeating transmission of a kind of bluetooth, as shown in Figure 1, comprising:
Step 101: bluetooth equipment extract receive from the First ray number in the data of terminal device, sentenceWhether the second sequence number that disconnected First ray number is preserved with bluetooth equipment mates, and is to perform step 102, otherwise,Execution step 103;
In the present embodiment, sequence number is 01,02,03 ... integer, bluetooth equipment extract receive fromSequence number in the data of terminal device is specially: bluetooth equipment extracts the number from terminal device receivingAccording in data in default byte;
Preferably, in the present embodiment, the 7th sequence number that byte is data of preliminary setting data,The sequence number that bluetooth equipment extracts the data that receive is specially: bluetooth equipment extracts the 7th of the data that receiveData in individual byte;
In the present embodiment, the sequence number of data is not limited to the 7th byte, can also be other bytes, exampleAs: the 10th byte;
In the present embodiment, judge whether the second sequence number that First ray number is preserved with bluetooth equipment mates,Can for to judge whether First ray number equates with the second sequence number, can also be for judge First ray number and theWhether two sequence numbers meet default rule changes;
For example, can judge whether First ray number equals preset value with the sum of the second sequence number, canTo judge that First ray number is whether as preset multiple of the second sequence number etc.;
Preferably, in the present invention, judge the second sequence number that First ray number and bluetooth equipment preserve whetherCoupling, is specially: judge that whether First ray is number identical with the second sequence number;
Further, wrap for when the data that bluetooth equipment receives morely, carry out many data receivers, step 101While being judged as YES, also comprise: bluetooth equipment judges whether the data that receive are the last item data, areRetransmission data is disregarded, continued current operation, otherwise retransmission data is disregarded, wait under reception, data, continue execution step 101;
Further, in the time that step 101 is judged as NO, also comprise: bluetooth equipment judge the second sequence number withWhether default step-length sum equals First ray number;
Judge after the second sequence number and default step-length sum equal First ray number when bluetooth equipment, carry outStep 103;
In the present embodiment, before step 101, also comprise:
Steps A 1: bluetooth equipment judges whether to receive the data from terminal device, is to perform step A2,Otherwise continue execution step A1;
Steps A 2: bluetooth equipment judges that whether the data that receive are correct, is to perform step 101, otherwiseOrganization Error Analysis reply data sends to terminal device, returns to steps A 1;
In the present embodiment, in the time that steps A 1 is judged as YES, before execution step A2, also comprise:
Bluetooth equipment judges the state of self, if bluetooth equipment is in busy condition, to receive fromThe data of terminal device are disregarded, and continue current operation, if bluetooth equipment is in idle condition, carry outSteps A 2.
Step 102: bluetooth equipment will send to terminal device with the execution result of the corresponding preservation of the second sequence number,Return to step 101.
In the present embodiment, step 102 is specially: bluetooth equipment by with the execution of the corresponding preservation of the second sequence numberResult copies in the first memory block from the second memory block, sends to terminal device;
In the present embodiment, for storing bluetooth equipment, this will send to terminal device in the first memory blockData, the second memory block is for storing the execution result corresponding with the second sequence number.
Step 103: bluetooth equipment upgrades the second sequence number, according to the data that receive, carries out corresponding operating,Obtain execution result, preserve and send to terminal device by corresponding with the second sequence number the execution result obtaining,Return to step 101.
In the present embodiment, bluetooth equipment upgrades the second sequence number, is specially:
Bluetooth equipment is First ray number by the second sequence number update;
Or,
The second sequence number is added default step-length by bluetooth equipment, the second sequence using the result obtaining after upgradingNumber;
In the present embodiment, bluetooth equipment is specially the execution result obtaining with the corresponding preservation of the second sequence number:Bluetooth equipment copies execution result in the second memory block to from the 3rd memory block, by the second memory blockData Update is the execution result corresponding with the second sequence number;
In the present embodiment, the execution knot of the data that receive is carried out in the 3rd memory block for preserving bluetooth equipmentReally;
In the present embodiment, bluetooth equipment sends to terminal device to be specially execution result: bluetooth equipment willExecution result copies in the first memory block from the 3rd memory block, sends to terminal device.
Embodiment bis-
The embodiment of the present invention two provides the method for work of the anti-repeating transmission of a kind of bluetooth in the time of signature, as shown in Figure 2,Comprise:
Step 201: bluetooth equipment judges whether to receive the signature command from terminal device is to carry out stepRapid 202, otherwise continue execution step 201;
In the present embodiment, in the time that step 201 is judged as YES, also comprise: bluetooth equipment judges the state of self,If bluetooth equipment is in busy condition, the signature command receiving is disregarded, continue current operation,If bluetooth equipment is in idle condition, perform step 202.
Step 202: bluetooth equipment judges that whether the check bit of the signature command receiving is correct, is to carry out stepRapid 203, otherwise return to step 201;
Preferably, in the present embodiment, last byte that presets signature command is check bit;
Bluetooth equipment judges whether the check bit of the signature command receiving is correctly specially: bluetooth equipment basisOther partial datas that preset algorithm is removed check bit to the signature command receiving carry out computing and obtain new schoolTest the value of position, judge the value of new check bit and the value of the check bit of the signature command receiving that computing obtainsWhether identical, if so, confirm that the check bit of the signature command receiving is correct, otherwise, confirm to receiveThe check bit mistake of the signature command arriving.
Step 203: bluetooth equipment judges that whether the form of the signature command receiving is correct, is to perform step205, otherwise execution step 204;
In the present embodiment, bluetooth equipment judges whether the form of the signature command receiving is correctly specially:Bluetooth equipment judges that whether the form of the signature command receiving is consistent with default form, if so, confirmsThe correct format of the signature command receiving, otherwise, confirm the format error of the signature command receiving;
In the present embodiment, default form is: the data in ten bytes of first byte to the are its headFile, the 11 byte and subsequent data are its data field, and are ciphertext form, wherein head literary compositionIn part, the 7th byte is sequence number, the 9th byte and the tenth subpackage that byte is instruction mark, dataIn territory, last byte is check bit;
Preferably, in the present embodiment, in the time that the data in the 9th byte and the tenth byte are 0000,Represent that this instruction is for the instruction of single bag;
In the time that the data in the 9th byte and the tenth byte are 0001, represent that this instruction is Article 1 instruction;
In the time that the data in the 9th byte and the tenth byte are 0002, represent that this instruction is that the last item refers toOrder;
In the time that the data in the 9th byte and the tenth byte are 0003, represent that this instruction is intermediate command.
Step 204: bluetooth equipment Organization Error Analysis reply data, is saved in the first memory block and sends to terminalEquipment;
In the present embodiment, the first memory block will send to the data of terminal device for storing bluetooth equipment,Bluetooth equipment also comprises: bluetooth equipment is by first before wrong responses data are saved in the first memory blockData dump in memory block.
Step 205: bluetooth equipment extracts the command sequence number in the signature command receiving;
Particularly, bluetooth equipment extracts the data in default byte in the signature command receiving;
In the present embodiment, the 7th byte that presets signature command is command sequence number, command sequenceNumber be 01,02,03 ... integer, step 205 is specially: bluetooth equipment extracts the signature command that receivesData in the 7th byte;
Preferably, in the present embodiment, bluetooth equipment receives single packet signature instruction, and single packet signature instruction is:
6f0a0000000019000000004d0f0758842ce83716；
The command sequence that bluetooth equipment extracts number is 19.
Step 206: bluetooth equipment judges the command sequence number that the command sequence extracted number and bluetooth equipment are preservedWhether mate, be to perform step 207, otherwise execution step 208;
In the present embodiment, bluetooth equipment judges the instruction that the command sequence extracted number and bluetooth equipment are preservedWhether sequence number mates, and is specially: bluetooth equipment judges that the command sequence extracted number preserves with bluetooth equipmentCommand sequence number whether identical;
In the present embodiment, in the time that step 206 is judged as NO, also comprise: the instruction that bluetooth equipment judgement is preservedThe command sequence number whether sequence number and default step-length sum equal to extract, is to perform step 207, otherwiseReport an error, continue execution step 201;
For example, default step-length is 1, and the sequence number of preservation is 5, in the time that the command sequence of extracting number is 7,Report an error, or, in the time that the command sequence of extracting number is 4, report an error;
In the present embodiment, when the signature message of signature command is divided into many bags, carry out many command reception, stepRapid 206 when be judged as YES, also comprise: bluetooth equipment judges whether the instruction receiving is the last item instruction,Be that counterweight sends instructions and disregards, continue current operation, otherwise counterweight sends instructions and disregard, wait waitingAccept an instruction, continue execution step 201;
In the present embodiment, judge whether the instruction receiving is the last item instruction, is specially: judgement connectsWhether the data in the 9th byte and the tenth byte of the instruction of receiving are 0002, if so, confirmThe instruction receiving is the last item instruction, otherwise, confirm that the instruction receiving is not the last item instruction;
For example, many signature command are:
Article 1, instruction: 6f0a00000000180000010054d30ca6f6cb063de1;
Article 2 instruction: 6f0a0000000019000003006381a9d361bf175479;
Article 3 instruction: 6f0a000000002000000200006999934601e73b7e;
In the time that Article 2 instruction 6f0a0000000019000003006381a9d361bf175479 retransmits, bluetooth is establishedThe standby instruction 6f0a0000000019000003006381a9d361bf175479 to repeating transmission disregards, and waits waitingAccept an instruction, return to step 201.
Step 207: bluetooth equipment by with the signature response of signature command of the command sequence number corresponding preservation of preservingSend to terminal device, finish;
In the present embodiment, the second memory block is number corresponding for storing the command sequence of preserving with bluetooth equipmentThe signature response of signature command, also comprises before step 207: bluetooth equipment is by clear the data in the first memory blockRemove.
Step 208: bluetooth equipment is updated to the command sequence of preservation number the command sequence number of extracting;
In the present embodiment, the command sequence of preservation number being updated to the command sequence number of extracting is specially:The command sequence of preservation number is added default step-length by bluetooth equipment, the preservation using the result obtaining after upgradingCommand sequence number;
Preferably, in the present embodiment, default step-length is 1;
For example, the command sequence that bluetooth equipment is preserved number is the initial value 00 arranging, and the value after upgrading is 01;
In the present embodiment, the command sequence of preservation number is updated to the command sequence number of extracting, all rightFor: bluetooth equipment is updated to the command sequence of preservation number the command sequence number of extracting.
Step 209: bluetooth equipment is resolved the signature command receiving, and obtains its data field;
In the present embodiment, the 11st byte and subsequent the part that preset signature command are data field,Bluetooth equipment obtains its data field and is specially: bluetooth equipment obtains the 11st byte of the signature command receivingAnd subsequent data content.
Step 210: bluetooth equipment is deciphered the data field getting, obtains expressly signature command;
In the present embodiment, presetting signature command is ciphertext form;
Particularly, bluetooth equipment is deciphered the data field getting according to preset algorithm, obtains expressly signature command;
Preferably, in the present embodiment, preset algorithm is 3DES algorithm;
In the present embodiment, when the signature message of signature command is many bags, while carrying out many command reception, stepRapid 210 also comprise: by the plaintext signature command arriving preserve.
Step 211: bluetooth equipment carries out signature operation according to the plaintext signature command obtaining, generates signature response;
Particularly, bluetooth equipment, according to plaintext signature command selection algorithm, calls safety according to the algorithm of selectingChip algorithm engine is signed message cryptographic Hash to be signed in signature command, obtains the result of signing, rootGenerate signature response according to the signature result obtaining;
In the present embodiment, when the signature message of signature command is many bags, while carrying out many command reception, stepBefore rapid 211, also comprise: bluetooth equipment judges whether the instruction receiving is the last item instruction, is to carry outStep 211, otherwise wait for next instruction of reception, return to step 201;
When the signature message of signature command is many bags, while carrying out many command reception, step 211 is specially: indigo plantTooth equipment carries out signature operation according to the plaintext signature command of preserving, and generates signature response.
Step 212: bluetooth equipment is saved in signature response in the 3rd memory block;
In the present embodiment, the signature response that signature command generates, step are carried out for storing in the 3rd memory blockBefore 212, also comprise: bluetooth equipment is by the data dump in the 3rd memory block.
Step 213: bluetooth equipment copies signature response to the first memory block neutralization second from the 3rd memory blockIn memory block;
In the present embodiment, before step 213, also comprise: bluetooth equipment is by first memory block neutralization the second storageData dump in district;
Particularly, signature response is copied in the first memory block from the 3rd memory block, for sending to endEnd equipment; Signature response is copied in the second memory block from the 3rd memory block, be about in the second memory blockData Update be the signature response of number corresponding signature command of command sequence that now bluetooth equipment is preserved.
Step 214: signature response is sent to terminal device by bluetooth equipment.
Particularly, bluetooth equipment takes out signature response to send to terminal device from the first memory block.
Embodiment tri-
The embodiment of the present invention three provides the method for work of the anti-repeating transmission of a kind of bluetooth in the time obtaining random number, as Fig. 3Shown in, comprising:
Step 301: bluetooth equipment judges whether to receive that terminal device sends obtains random number instruction, isExecution step 302, otherwise return to step 301;
In the present embodiment, when step 301 is judged as YES, also comprise: bluetooth equipment judges the state of self,If bluetooth equipment is in busy condition, the random number instruction of obtaining receiving is disregarded, continue currentOperation, if bluetooth equipment is in idle condition, performs step 302.
Step 302: bluetooth equipment judges that whether the check bit of obtaining random number instruction receiving is correct, isExecution step 303, otherwise return to step 301;
Preferably, in the present embodiment, presetting last byte of obtaining random number instruction is verificationPosition;
Bluetooth equipment judges whether the check bit of obtaining random number instruction receiving is correctly specially: bluetooth is establishedStandby according to preset algorithm, other partial datas that random number instruction removes check bit that obtain that receive are transportedCalculation obtains the value of new check bit, judges the value of new check bit that computing obtains and obtaining at random of receivingWhether the value of the check bit of number instruction is identical, if so, confirms the school that obtains random number instruction receivingTest position correct, otherwise, confirm the check bit mistake of obtaining random number instruction receiving;
Step 303: bluetooth equipment judges that whether the form that obtains random number instruction receiving is correct, is to holdRow step 305, otherwise execution step 304;
In the present embodiment, bluetooth equipment judges the whether correct tool of the form that obtains random number instruction receivingBody is: bluetooth equipment judges that whether the form that obtains random number instruction receiving is consistent with default form, asBe really, the correct format that obtains random number instruction that confirmation receives, otherwise what confirmation received obtainsThe format error of random number instruction;
In the present embodiment, default form is: the data in ten bytes of first byte to the are its headFile, the 11 byte and subsequent data are its data field, and are ciphertext form, wherein head literary compositionIn part, the 7th byte is sequence number, and in data field, last byte is check bit.
Step 304: bluetooth equipment Organization Error Analysis reply data, is saved in the first memory block and sends to terminalEquipment;
In the present embodiment, for storing bluetooth equipment, this will send to terminal device in the first memory blockData, bluetooth equipment also comprises: bluetooth equipment before wrong responses data are saved in the first memory blockBy the data dump in the first memory block.
Step 305: bluetooth equipment extracts the command sequence number in random number instruction of obtaining receiving;
Particularly, bluetooth equipment extracts the data in default byte in random number instruction of obtaining that receive;
In the present embodiment, presetting the 7th byte obtaining random number instruction is command sequence number, refers toMaking sequence number is 01,02,03 ... integer, step 305 is specially: bluetooth equipment extracts obtaining of receivingData in the 7th byte of random number instruction;
Preferably, in the present embodiment, what bluetooth equipment received obtains random number instruction is:
6f0a000000001500000000be7a579f5c0b390c1e；
The command sequence that bluetooth equipment extracts number is 15.
Step 306: bluetooth equipment judges the command sequence number that the command sequence extracted number and bluetooth equipment are preservedWhether mate, be to perform step 307, otherwise execution step 308;
In the present embodiment, bluetooth equipment judges the instruction that the command sequence extracted number and bluetooth equipment are preservedWhether sequence number mates, and is specially: bluetooth equipment judges that the command sequence extracted number preserves with bluetooth equipmentCommand sequence number whether identical;
In the present embodiment, in the time that step 306 is judged as NO, also comprise: the instruction that bluetooth equipment judgement is preservedThe command sequence number whether sequence number and default step-length sum equal to extract, is to perform step 307, otherwiseReport an error, continue execution step 301;
For example, default step-length is 1, and the sequence number of preservation is 5, in the time that the command sequence of extracting number is 7,Report an error, or in the time that the command sequence of extracting number is 2, report an error.
Step 307: bluetooth equipment by with number corresponding preservation of the command sequence of preserving obtain random number instruction withThe response of machine number sends to terminal device, finishes;
Particularly, bluetooth equipment by with number corresponding preservation of the command sequence of preserving obtain random number instruction withThe response of machine number copies in the first memory block from the second memory block, sends to terminal device;
In the present embodiment, command sequence number corresponding the obtaining that preserve for storing bluetooth equipment the second memory blockGet the random number response of random number instruction, before step 307, also comprise: bluetooth equipment is by the first memory blockData dump;
Step 308: bluetooth equipment is updated to the command sequence of preservation number the command sequence number of extracting;
In the present embodiment, the command sequence of preservation number being updated to the command sequence number of extracting is specially:The command sequence of preservation number is added default step-length by bluetooth equipment, the preservation using the result obtaining after upgradingCommand sequence number;
Preferably, in the present embodiment, default step-length is 1;
For example, the command sequence that bluetooth equipment is preserved number is the initial value 00 arranging, and the value after upgrading is 01;
In the present embodiment, the command sequence of preservation number is updated to the command sequence number of extracting, all rightFor: bluetooth equipment is updated to the command sequence of preservation number the command sequence number of extracting.
Step 309: what bluetooth equipment parsing received obtains random number instruction, obtains its data field;
In the present embodiment, presetting the 11st byte and subsequent the part of obtaining random number instruction is itData field, bluetooth equipment obtains its data field and is specially: bluetooth equipment obtains the random number of obtaining receiving and refers toThe 11st byte and subsequent data content of order.
Step 310: bluetooth equipment is deciphered the data field getting, obtains expressly obtaining random number instruction;
In the present embodiment, preset that to obtain random number instruction be ciphertext form;
Particularly, bluetooth equipment is deciphered the data field getting according to preset algorithm, obtains expressly obtaining randomNumber instruction;
Preferably, in the present embodiment, preset algorithm is 3DES algorithm.
Step 311: bluetooth equipment obtains random number instruction execution according to the plaintext obtaining and obtains random number operation,The response of generation random number;
Particularly, bluetooth equipment calls the hardware random number engine generation hardware random number kind of safety chip itselfSon, generates pseudo random number according to the hardware random number seed generating, and generates random according to the pseudo random number generatingNumber response;
In the present embodiment, the random number of generation can be eight, but is not limited to eight.
Step 312: bluetooth equipment is saved in the random number response of generation in the 3rd memory block;
In the present embodiment, the 3rd memory block obtains for storing to carry out the random number sound that random number instruction generatesShould, before step 312, also comprise: bluetooth equipment is by the data dump in the 3rd memory block.
Step 313: bluetooth equipment copies the random number response of generation to first memory block from the 3rd memory blockNeutralize in the second memory block;
In the present embodiment, before step 313, also comprise: bluetooth equipment is by first memory block neutralization the second storageData dump in district;
Particularly, random number response is copied in the first memory block from the 3rd memory block, for sending toTerminal device; Random number response is copied in the second memory block from the 3rd memory block, be about to the second storageData Update in district be command sequence that now bluetooth equipment is preserved number corresponding obtain random number instruction withThe response of machine number.
Step 314: the random number response of generation is sent to terminal device by bluetooth equipment, finishes.
Particularly, bluetooth equipment takes out the random number response of generation to send to terminal to establish from the first memory blockStandby.
Embodiment tetra-
The embodiment of the present invention four provides the method for work of the anti-repeating transmission of a kind of bluetooth in the time of checking PIN code, as Fig. 4Shown in, comprising:
Step 401: bluetooth equipment judges whether to receive the checking PIN code instruction that terminal device sends, and isExecution step 402, otherwise return to step 401;
In the present embodiment, when step 401 is judged as YES, also comprise: bluetooth equipment judges the state of self,If bluetooth equipment is in busy condition, the checking PIN code instruction receiving is disregarded, continue currentOperation, if bluetooth equipment is in idle condition, performs step 402.
Step 402: bluetooth equipment judges that whether the check bit of the checking PIN code instruction receiving is correct, isExecution step 403, otherwise return to step 401;
Preferably, in the present embodiment, last byte that presets the instruction of checking PIN code is verificationPosition;
Bluetooth equipment judges whether the check bit of the checking PIN code instruction receiving is correctly specially: bluetooth is establishedStandby other partial datas of the checking PIN code instruction receiving being removed to check bit according to preset algorithm are transportedCalculation obtains the value of new check bit, judges the value of the new check bit that computing obtains and the checking PIN receivingWhether the value of the check bit of code instruction is identical, if so, confirms the school of the checking PIN code instruction receivingTest position correct, otherwise, the check bit mistake of the checking PIN code instruction that confirmation receives.
Step 403: bluetooth equipment judges that whether the form of the checking PIN code instruction receiving is correct, is to holdRow step 405, otherwise execution step 404;
In the present embodiment, bluetooth equipment judges the whether correct tool of form of the checking PIN code instruction receivingBody is: bluetooth equipment judges that whether the form of the checking PIN code instruction receiving is consistent with default form, asBe really, confirm the correct format of the checking PIN code instruction receiving, otherwise, confirm the checking receivingThe format error of PIN code instruction;
In the present embodiment, default form is: the data in ten bytes of first byte to the are its headFile, the 11 byte and subsequent data are its data field, and are ciphertext form, wherein head literary compositionIn part, the 7th byte is sequence number, and in data field, last byte is check bit.
Step 404: bluetooth equipment Organization Error Analysis reply data, is saved in the first memory block and sends to terminalEquipment, returns to step 401;
In the present embodiment, the first memory block will send to the data of terminal device for storing bluetooth equipment,Bluetooth equipment also comprises before wrong reply data is saved in the first memory block: bluetooth equipment is by firstData dump in memory block.
Step 405: bluetooth equipment extracts the command sequence number in the checking PIN code instruction receiving;
Particularly, bluetooth equipment extracts the data in default byte in the checking PIN code instruction receiving;
In the present embodiment, the 7th byte that presets the instruction of checking PIN code is command sequence number, refers toMaking sequence number is 01,02,03 ... integer, step 405 is specially: bluetooth equipment extracts the checking receivingData in the 7th byte of PIN code instruction;
Preferably, in the present embodiment, the checking PIN code instruction that bluetooth equipment receives is:
6f8a00000000160000000074d20ca6f6cb063da1cb103bf1711b554369065f0281a9d361bf17547953caaf85ef9670d6acb3ba190cdfdab47df3d365b9d2e428d2fe37c4b42090a8f71ccf53a1118811e7e514c68cc14ae572d059b7ab41d277f047e85757de85cc0ac86cb32d69d52af98ae25f2a9ac0f366a01190822bcfdeec4542756610070bbd1d42aa6999934601e73b7e；
The command sequence that bluetooth equipment extracts number is 16.
Step 406: bluetooth equipment judges the command sequence number that the command sequence extracted number and bluetooth equipment are preservedWhether mate, be to perform step 407, otherwise execution step 408;
In the present embodiment, bluetooth equipment judges the instruction that the command sequence extracted number and bluetooth equipment are preservedWhether sequence number mates, and is specially: bluetooth equipment judges that the command sequence extracted number preserves with bluetooth equipmentCommand sequence number whether identical;
In the present embodiment, in the time that step 406 is judged as NO, also comprise: the instruction that bluetooth equipment judgement is preservedThe command sequence number whether sequence number and default step-length sum equal to extract, is to perform step 407, otherwiseReport an error, continue execution step 401;
For example, default step-length is 1, and the sequence number of preservation is 5, in the time that the command sequence of extracting number is 7,Report an error, or in the time that the command sequence of extracting number is 2, report an error.
Step 407: bluetooth equipment by with the testing of checking PIN code instruction of the command sequence number corresponding preservation of preservingThe response of card PIN code sends to terminal device, finishes;
Particularly, bluetooth equipment is by the checking PIN of checking PIN code instruction number corresponding the command sequence of preservingCode response copies in the first memory block from the second memory block, sends to terminal device, finishes;
In the present embodiment, the second memory block is for storing the command sequence number corresponding guarantor who preserves with bluetooth equipmentThe checking PIN code response of the checking PIN code instruction of depositing, also comprises before step 407: bluetooth equipment is by theData dump in one memory block.
Step 408: bluetooth equipment is updated to the command sequence of preservation number the command sequence number of extracting;
In the present embodiment, the command sequence of preservation number being updated to the command sequence number of extracting is specially:The command sequence of preservation number is added default step-length by bluetooth equipment, the preservation using the result obtaining after upgradingCommand sequence number;
Preferably, in the present embodiment, default step-length is 1;
For example, the command sequence that bluetooth equipment is preserved number is the initial value 00 arranging, and the value after upgrading is 01;
In the present embodiment, the command sequence of preservation number is updated to the command sequence number of extracting, all rightFor: bluetooth equipment is updated to the command sequence of preservation number the command sequence number of extracting.
Step 409: bluetooth equipment is resolved the checking PIN code instruction receiving, and obtains its data field;
In the present embodiment, the 11st byte and subsequent the part that preset checking PIN code instruction are numberAccording to territory, bluetooth equipment obtains its data field and is specially: bluetooth equipment obtains the checking PIN code instruction receivingThe 11st byte and subsequent data content.
Step 410: bluetooth equipment is deciphered the data field getting, obtains the instruction of plain text authentication PIN code;
In the present embodiment, presetting the instruction of checking PIN code is ciphertext form;
Particularly, bluetooth equipment is deciphered the data field getting according to preset algorithm, obtain plain text authentication PINCode instruction;
Preferably, in the present embodiment, preset algorithm is 3DES algorithm.
Step 411: bluetooth equipment judges that whether the PIN code in the instruction of plain text authentication PIN code is correct, and rawBecome the response of checking PIN code;
Particularly, the PIN preserving in the PIN code in the instruction of bluetooth equipment judgement checking PIN code and bluetooth equipmentWhether code is identical, if identical, generate the correct PIN that tests of checking PIN code and responds, otherwise generate checkingThe PIN that tests of PIN code mistake responds;
In the present embodiment, before step 411, also comprise: terminal device is according to 8 random numbers pair that getXor operation is carried out in the instruction of plain text authentication PIN code, obtains the PIN code in the instruction of plain text authentication PIN code.
Step 412: bluetooth equipment will be tested PIN response and be saved in the 3rd memory block;
In the present embodiment, the 3rd memory block verifies that for storing to carry out the PIN that tests that PIN code instruction generates ringsShould, before step 412, also comprise: bluetooth equipment is by the data dump in the 3rd memory block.
Step 413: bluetooth equipment will be tested PIN response and copy the first memory block neutralization the to from the 3rd memory blockIn two memory blocks;
In the present embodiment, before step 413, also comprise: bluetooth equipment is by first memory block neutralization the second storageData dump in district;
Particularly, will test PIN response and copy in the first memory block from the 3rd memory block, for sending toTerminal device; To test PIN response and copy in the second memory block from the 3rd memory block, be about to the second storageData Update in district is testing of number corresponding checking PIN code instruction of command sequence that now bluetooth equipment is preservedPIN response.
Step 414: bluetooth equipment will be tested PIN response and send to terminal device, finish.
Particularly, bluetooth equipment will be tested PIN response taking-up from the first memory block and send to terminal device.
Embodiment five
The embodiment of the present invention five provide generate key to time a kind of bluetooth anti-repeating transmission method of work, as Fig. 5 instituteShow, comprising:
Step 501: bluetooth equipment judges whether that the generation key that receives terminal device transmission, to instruction, isExecution step 502, otherwise return to step 501;
In the present embodiment, when step 501 is judged as YES, also comprise: bluetooth equipment judges the state of self,If bluetooth equipment is in busy condition, the generation key receiving is disregarded instruction, continue currentOperation, if bluetooth equipment is in idle condition, performs step 502.
Step 502: bluetooth equipment judges that whether the generation key receiving is correct to the check bit of instruction, isExecution step 503, otherwise return to step 501;
Preferably, in the present embodiment, presetting and generating key is verification to last byte of instructionPosition;
Bluetooth equipment judges whether the generation key receiving is correctly specially the check bit of instruction: bluetooth is establishedStandby other partial datas of the generation key receiving being removed to check bit to instruction according to preset algorithm are transportedCalculation obtains the value of new check bit, judges the value of the new check bit that computing obtains and the generation key receivingWhether the value of the check bit to instruction is identical, if so, and the school of the generation key that confirmation receives to instructionTest position correct, otherwise, the check bit mistake of the generation key that confirmation receives to instruction.
Step 503: bluetooth equipment judges that whether the generation key receiving is correct to the form of instruction, is to holdRow step 505, otherwise execution step 504;
In the present embodiment, bluetooth equipment judges that the generation key receiving is to the whether correct tool of the form of instructionBody is: bluetooth equipment judges that whether the generation key receiving is consistent with default form to the form of instruction, asBe really, the correct format of the generation key that confirmation receives to instruction, otherwise, confirm the generation receivingThe format error of key to instruction;
In the present embodiment, default form is: the data in ten bytes of first byte to the are its headFile, the 11 byte and subsequent data are its data field, and are ciphertext form, wherein head literary compositionIn part, the 7th byte is sequence number, and in data field, last byte is check bit.
Step 504: bluetooth equipment Organization Error Analysis reply data, is saved in the first memory block and sends to terminalEquipment, returns to step 501;
In the present embodiment, the first memory block will send to the data of terminal device for storing bluetooth equipment,Bluetooth equipment also comprises before wrong responses data are saved in the first memory block: bluetooth equipment is deposited firstData dump in storage district.
Step 505: bluetooth equipment extracts the generation key receiving to the command sequence number in instruction;
Particularly, bluetooth equipment extracts the generation key receiving to the data in default byte in instruction;
In the present embodiment, presetting generation key is command sequence number to the 7th of instruction the byte; Refer toMaking sequence number is 01,02,03 ... integer, step 505 is specially: bluetooth equipment extracts the generation receivingKey is to the data in the 7th of instruction the byte;
Preferably, in the present embodiment, the generation key that bluetooth equipment receives to instruction is:
6f070000000003000000000047474b80a0；
The command sequence that bluetooth equipment extracts number is 03.
Step 506: bluetooth equipment judges the command sequence number that the command sequence extracted number and bluetooth equipment are preservedWhether mate, be to perform step 507, otherwise execution step 508;
In the present embodiment, bluetooth equipment judges the instruction that the command sequence extracted number and bluetooth equipment are preservedWhether sequence number mates, and is specially: bluetooth equipment judges that the command sequence extracted number preserves with bluetooth equipmentCommand sequence number whether identical;
In the present embodiment, in the time that step 506 is judged as NO, also comprise: the instruction that bluetooth equipment judgement is preservedThe command sequence number whether sequence number and default step-length sum equal to extract, is to perform step 507, otherwiseReport an error, continue execution step 501;
For example, default step-length is 1, and the sequence number of preservation is 5, in the time that the command sequence of extracting number is 7,Report an error, or in the time that the command sequence of extracting number is 2, report an error.
Step 507: bluetooth equipment will generate instruction with the generation key of the command sequence number corresponding preservation of preservingPKI send to terminal device, finish;
Particularly, bluetooth equipment will generate instruction with the generation key of the command sequence number corresponding preservation of preservingPKI from the second memory block, copy in the first memory block, send to terminal device, finish;
In the present embodiment, the command sequence correspondence that bluetooth equipment is preserved is carried out for storing in the second memory blockGeneration key PKI that instruction is generated, also comprise before step 507: bluetooth equipment is by the first memory blockData dump;
Step 508: bluetooth equipment is updated to the command sequence of preservation number the command sequence number of extracting;
In the present embodiment, the command sequence of preservation number being updated to the command sequence number of extracting is specially:The command sequence of preservation number is added default step-length by bluetooth equipment, the preservation using the result obtaining after upgradingCommand sequence number;
Preferably, in the present embodiment, default step-length is 1;
For example, the command sequence that bluetooth equipment is preserved number is the initial value 00 arranging, and the value after upgrading is 01;
In the present embodiment, the command sequence of preservation number is updated to the command sequence number of extracting, all rightFor: bluetooth equipment is updated to the command sequence of preservation number the command sequence number of extracting.
Step 509: bluetooth equipment is resolved the generation key receiving to instruction, obtains its data field;
In the present embodiment, preset and generate key to the 11st of instruction the byte and subsequent partly for countingAccording to territory, bluetooth equipment obtains its data field and is specially: bluetooth equipment obtains the generation key receiving to instructionThe 11st byte and subsequent data content.
Step 510: bluetooth equipment is deciphered the data field getting, obtains expressly generating key to instruction;
In the present embodiment, presetting generation key is ciphertext form to instruction;
Particularly, bluetooth equipment is deciphered the data field of the generation key receiving to instruction according to preset algorithm,Obtain expressly generating key to instruction;
Preferably, in the present embodiment, preset algorithm is 3DES algorithm.
Step 511: bluetooth equipment is carried out and generated key to operation instruction according to expressly generating key, generates closeKey pair;
Particularly, bluetooth equipment check key storage district whether there is key, if exist, by existPKI copies in the 3rd memory block, execution step 513, otherwise bluetooth equipment generates RSA key pair, holdsRow step 512;
In the present embodiment, bluetooth equipment generates RSA key to being specially: bluetooth equipment calls safety chipHardware itself generates key engine is generated to RSA unsymmetrical key pair, unsymmetrical key to comprise PKI andPrivate key, wherein PKI sends to terminal device, and private key is stored in bluetooth equipment;
In the present embodiment, the key that bluetooth equipment generates is to being SM2 key pair.
Step 512: bluetooth equipment is saved in the PKI of generation in the 3rd memory block;
In the present embodiment, the 3rd memory block generates the PKI that key generates instruction, step for storing to carry outBefore rapid 512, also comprise: bluetooth equipment is by the data dump in the 3rd memory block.
Step 513: bluetooth equipment copies the PKI of generation to the first memory block neutralization the from the 3rd memory blockIn two memory blocks;
In the present embodiment, before step 513, also comprise: bluetooth equipment is by first memory block neutralization the second storageData dump in district;
Particularly, the PKI of generation is copied in the first memory block from the 3rd memory block, for sending toTerminal device; The PKI of generation is copied in the second memory block from the 3rd memory block, be about to the second storageData Update in district is that the command sequence number corresponding generation key that now bluetooth equipment is preserved generates instructionPKI.
Step 514: the PKI of generation is sent to terminal device by bluetooth equipment, finishes.
Particularly, bluetooth equipment takes out the PKI of generation to send to terminal device from the first memory block.
Embodiment six
The embodiment of the present invention six provides the implement device of the anti-repeating transmission of a kind of bluetooth, as shown in Figure 6, comprising:
Extraction module 601, for extracting the First ray number of the data from terminal device that receive;
Memory module 602, for preserving the second sequence number and the execution result corresponding with the second sequence number;
The first judge module 603, for judging whether First ray number mates with the second sequence number;
Sending module 604, for judging First ray number and the second sequence numbers match when the first judge module 603Time, execution result corresponding with the second sequence number in memory module is sent to terminal device;
More new module 605, for judging First ray number and the second sequence number not when the first judge module 603When coupling, upgrade the second sequence number;
Processing module 606, for according to the data that receive, carries out corresponding operating, obtains execution result;
In the present embodiment, execution result and second order of memory module 602 specifically for processing module is obtainedRow number corresponding preservation;
In the present embodiment, sending module 604, also sends for the execution result that processing module 606 is obtainedGive terminal device.
The device of the present embodiment, also comprises:
Whether the second judge module, receive the data from terminal device for judgment means;
The 3rd judge module, for receiving the data from terminal device when the second judge module judgment meansTime, whether the data that judgement receives are correct;
In the present embodiment, sending module 604, the also number for receiving when the 3rd judge module judgment meansWhen incorrect, Organization Error Analysis reply data sends to terminal device, triggers the second judge module;
In the present embodiment, extraction module 601, receives specifically for judging device when the 3rd judge moduleData when correct, extract the First ray number in the data that receive.
The device of the present embodiment, also comprises:
The 4th judge module, receives the number from terminal device for judging device when the second judge moduleAccording to time, the state of judgment means, if device is in busy condition, to receive from terminal deviceData are disregarded, and continue current operation, if device is in idle condition, trigger the 3rd judge module.
In the present embodiment, the 3rd judge module, specifically for:
Whether the check bit of the data that receive described in judgement is correct;
Whether the form of the data that receive described in judgement is correct;
If judged result is be, trigger extraction module 601, otherwise trigger sending module 604.
In the present embodiment, the 3rd judge module judges that whether the check bit of the data that receive is correct, concreteCarrying out computing for other partial datas of the data that receive being removed to check bit according to preset algorithm obtains newlyThe value of check bit, judge the value of new check bit and the value of the check bit of the data that receive that computing obtainsWhether identical, if so, confirm that the check bit of the data that receive is correct, otherwise confirmation receivesThe check bit mistake of data;
The 3rd judge module judges that whether the form of the data that receive is correct, receives specifically for judgementWhether the form of data is consistent with default form, if so, confirms the correct format of the data that receive,Otherwise, the format error of the data that receive.
Further, extraction element 601, specifically for extracting in the data that receive default according to default formData in byte.
The device of the present embodiment, also comprises:
The 5th judge module, wraps for for the data that receive when device more, carries out many data receivers, theOne judge module is judged First ray number with the second sequence number when identical, judges that the data received are whether forRear data, are retransmission data to be disregarded, otherwise wait for next data of reception, trigger and extractModule.
In the present embodiment, the 5th judge module judges whether the data that receive are the last item data, toolBody is for judging whether the data in the default byte of the data that receive are preset data.
The device of the present embodiment, also comprises:
The 6th judge module, for judging First ray number and the second sequence number not when the first judge module 603Meanwhile, judge whether the second sequence number and default step-length sum equal First ray number;
In the present embodiment, more new module 605, specifically for when the 6th judge module judge the second sequence number withWhen default step-length sum equals First ray, upgrade the second sequence number.
In the present embodiment, more new module 605, specifically for:
Be First ray number by the second sequence number update;
Or,
The second sequence number is added to default step-length, the second sequence number using the result obtaining after upgrading.
In the present embodiment, processing module 606, specifically for:
In the time that the data that receive are ciphertext signature command, processing module 606 according to preset algorithm to receivingCiphertext signature command is decrypted, and the plaintext signature command obtaining is selected according to the plaintext signature command obtainingAlgorithm, carries out signature operation according to the algorithm of selecting to message to be signed in plaintext signature command, is signedAs a result, generate signature response according to the signature result obtaining, using signature response as execution result;
When the data that receive are ciphertext while obtaining random number instruction, processing module 605 is docked according to preset algorithmThe ciphertext of receiving is obtained random number instruction and is decrypted, and obtains expressly obtaining random number instruction, according to what obtainExpressly obtain random number instruction, call hardware random number engine and generate hardware random number seed, according to what generateHardware random number seed generates pseudo random number, generates random number response according to the pseudo random number generating, will be randomNumber response is as execution result;
In the time that the data that receive are the instruction of ciphertext checking PIN code, processing module 605 is according to preset algorithm pairThe ciphertext checking PIN code instruction receiving is decrypted, and obtains the instruction of plain text authentication PIN code, and judgement expresslyWhether the PIN code that the PIN code in the instruction of checking PIN code is preserved with device is identical, if identical, generatesThe correct PIN that tests of checking PIN code correctly responds, the PIN of institute correctly responded as execution result, otherwise rawWhat become checking PIN code mistake tests PIN errored response, will test PIN errored response as execution result;
When the described data that receive are that ciphertext generates key during to instruction, processing module 605 is according to preset algorithmThe ciphertext receiving is generated to key instruction is decrypted, obtain expressly generating key to instruction, according toThe plaintext arriving generates key to instruction, checks in key storage district whether have key, if existed, willThe PKI existing is as described execution result, otherwise generation RSA or SM2 unsymmetrical key pair, by what generateThe PKI of unsymmetrical key centering is as described execution result.
By technical scheme of the present invention, in the time that terminal device and bluetooth equipment carry out communication, bluetooth equipment canThe sequence number of the data that issue with maintenance terminal equipment, has prevented terminal device retransmission data and the communication that causesFailure, has improved the processing speed of instruction.
The above, be only preferably detailed description of the invention of the present invention, but not office of protection scope of the present inventionBe limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in, can be easilyExpect changing or replacing, within all should being encompassed in protection scope of the present invention. Therefore, protection model of the present inventionEnclose and should described be as the criterion with the protection domain of claim.

Claims (22)

1. an implementation method for the anti-repeating transmission of bluetooth, is characterized in that, comprising:
Step S1: bluetooth equipment extract receive from the First ray number in the data of terminal device, sentenceWhether the second sequence number that disconnected described First ray number is preserved with described bluetooth equipment mates, and is to perform stepS2, otherwise execution step S3;
Step S2: described bluetooth equipment will send to institute with the execution result of the corresponding preservation of described the second sequence numberState terminal device, return to step S1;
Step S3: described bluetooth equipment upgrades described the second sequence number, according to the data that receive, carries out phaseShould operate, obtain execution result, preserve and send corresponding with described the second sequence number the execution result obtainingGive described terminal device, return to step S1.
2. method according to claim 1, is characterized in that, before described step S1, also comprises:
Steps A 1: described bluetooth equipment judges whether to receive the data from described terminal device, is to holdRow steps A 2, otherwise continue execution step A1;
Steps A 2: described bluetooth equipment judges that whether the data that receive are correct, is to perform step S1, noOrganization Error Analysis reply data sends to described terminal device, returns to steps A 1.
3. method according to claim 2, is characterized in that, described in described steps A 1 judgesWhen bluetooth equipment receives from the data of described terminal device, also comprise: described bluetooth equipment judges selfState, as described in bluetooth equipment in busy condition, to the number from described terminal device receivingAccording to disregarding, continue current operation, as described in bluetooth equipment in idle condition, carry out described stepA2。
4. method according to claim 2, is characterized in that, described bluetooth equipment judgement receivesWhether data are correct, are specially:
Whether the check bit of the data that receive described in judgement is correct;
Whether the form of the data that receive described in judgement is correct;
If judged result is be, the data that receive described in are correct, otherwise described in the data that receiveMistake.
5. method according to claim 4, is characterized in that,
Whether the check bit of the data that receive described in described judgement is correct, is specially: described bluetooth equipment rootOther partial datas of the described data that receive being removed to check bit according to preset algorithm carry out computing and obtain newThe value of check bit, the value that judges the new check bit that computing obtains with described in the check bit of the data that receiveWhether be worth identically, if so, described in confirming, the check bit of the data that receive is correct, otherwise, confirm instituteState the check bit mistake of the data that receive;
Whether the form of the data that receive described in described judgement is correct, is specially: described bluetooth equipment judgementWhether the form of the described data that receive is consistent with default form, if so, described in confirming, receivesThe correct format of data, otherwise, the format error of the data that receive described in confirmation.
6. method according to claim 5, is characterized in that, in described step S1, described bluetooth is establishedStandby extract receive from the First ray number in the data of terminal device, be specially: described bluetooth equipmentDescribed in extracting according to described default form, receive from the number in default byte in the data of terminal deviceAccording to.
7. method according to claim 1, is characterized in that, the number receiving when described bluetooth equipmentAccording to being many bags, carry out many data receivers, described step S1 judges described First ray number with described secondWhen sequence numbers match, also comprise:
Whether the data that receive described in described bluetooth equipment judges are the last item data, are to number of retransmissionsAccording to disregarding, continue current operation, otherwise retransmission data is disregarded, wait for and receive next data,Continue to carry out described step S1.
8. method according to claim 7, is characterized in that, the data that receive described in described judgementWhether be the last item data, be specially: the data in the data that receive described in judgement in default byte areNo is preset data.
9. method according to claim 1, is characterized in that, described bluetooth equipment judges describedAfter one sequence number and described the second sequence numbers, also comprise:
Described bluetooth equipment judges whether described the second sequence number and default step-length sum equal described First rayNumber;
Described bluetooth equipment upgrades described the second sequence number, is specially:
When described bluetooth equipment is judged described the second sequence number and described default step-length sum equals described firstAfter sequence number, described bluetooth equipment upgrades described the second sequence number.
10. method according to claim 1, is characterized in that, described bluetooth equipment upgrades the second sequenceNumber, be specially:
Described bluetooth equipment is described First ray number by described the second sequence number update;
Or,
Described the second sequence number is added default step-length by described bluetooth equipment, using the result obtaining after upgradingThe second sequence number.
11. methods according to claim 1, is characterized in that, in described step S4, and described bluetoothEquipment, according to the data that receive, is carried out corresponding operating, obtains execution result, is specially:
In the time that the described data that receive are ciphertext signature command, described bluetooth equipment docks according to preset algorithmThe ciphertext signature command of receiving is decrypted, and obtains expressly signature command, according to the plaintext signature command obtainingSelection algorithm, carries out signature operation according to the algorithm of selecting to message to be signed in described plaintext signature command,Obtain the result of signing, generate signature response according to the signature result obtaining, using described signature response as describedExecution result;
When the described data that receive are ciphertext while obtaining random number instruction, described bluetooth equipment is according to pre-imputationMethod is obtained random number instruction to the ciphertext receiving and is decrypted, and obtains expressly obtaining random number instruction, according toThe plaintext obtaining obtains random number instruction, and call hardware random number engine and generate hardware random number seed, according toThe hardware random number seed generating generates pseudo random number, generates random number response according to the pseudo random number generating,Described random number is responded as described execution result;
In the time that the described data that receive are the instruction of ciphertext checking PIN code, described bluetooth equipment is according to pre-imputationMethod is decrypted the ciphertext checking PIN code instruction receiving, and obtains the instruction of plain text authentication PIN code, judgementWhether the PIN code in the instruction of described plain text authentication PIN code is identical with the PIN code that described bluetooth equipment is preserved,If identical, generate the correct PIN that tests of checking PIN code and correctly respond, described in inciting somebody to action, test PIN and correctly respondAs described execution result, otherwise generate checking PIN code mistake test PIN errored response, will described in test PINErrored response is as described execution result;
When the described data that receive are that ciphertext generates key during to instruction, described bluetooth equipment is according to pre-imputationMethod generates key to the ciphertext receiving instruction is decrypted, obtains expressly generating key to instruction, according toThe plaintext obtaining generates key to instruction, checks in key storage district whether have key, if existed,Using the PKI existing as described execution result, otherwise generate RSA or SM2 unsymmetrical key pair, will generateThe PKI of unsymmetrical key centering as described execution result.
The implement device of 12. 1 kinds of anti-repeating transmission of bluetooth, is characterized in that, comprising:
Extraction module, for extracting the First ray number of the data from terminal device that receive;
Memory module, for preserving the second sequence number and the execution result corresponding with described the second sequence number;
The first judge module, for judging whether described First ray number mates with described the second sequence number;
Sending module, for judging described First ray number and described the second order when described the first judge moduleWhen row number mate, execution result corresponding with described the second sequence number in described memory module is sent to terminalEquipment;
More new module, for judging described First ray number and described the second order when described the first judge moduleWhen row number do not mate, upgrade described the second sequence number;
Processing module, for according to the data that receive, carries out corresponding operating, obtains execution result;
Described memory module, specifically for execution result and described the second sequence that described processing module is obtainedNumber corresponding preservation;
Described sending module, also sends to described terminal to establish for the execution result that described processing module is obtainedStandby.
13. devices according to claim 12, is characterized in that, also comprise:
The second judge module, for judging whether described device receives the data from described terminal device;
The 3rd judge module, receives from described for judging described device when described the second judge moduleWhen the data of terminal device, whether the data that judgement receives are correct;
Described sending module, also for judging when described the 3rd judge module the data that described device receivesWhen incorrect, Organization Error Analysis reply data sends to described terminal device, triggers described the second judge module;
Described extraction module, specifically for judging when described the 3rd judge module the number that described device receivesWhen correct, the First ray number in the data that receive described in extraction.
14. devices according to claim 13, is characterized in that, also comprise:
The 4th judge module, receives from described for judging described device when described the second judge moduleWhen the data of terminal device, judge the state of described device, as described in device in busy condition, dockingThe data from described terminal device of receiving are disregarded, continue current operation, as described in device in skyNot busy state, triggers described the 3rd judge module.
15. devices according to claim 13, is characterized in that, described the 3rd judge module is concreteBe used for:
Whether the check bit of the data that receive described in judgement is correct;
Whether the form of the data that receive described in judgement is correct;
If judged result is be, trigger described extraction module, otherwise trigger described sending module.
16. devices according to claim 15, is characterized in that, described the 3rd judge module judges instituteWhether the check bit of stating the data that receive correct, specifically for according to preset algorithm to the described number receivingThe value of carrying out computing and obtain new check bit according to other partial datas of removing check bit, judges what computing obtainedThe value of new check bit with described in the value of check bit of the data that receive whether identical, if so, confirmThe check bit of the described data that receive is correct, otherwise, the check bit mistake of the data that receive described in confirmation;
Whether the form of the data that receive described in described the 3rd judge module judgement is correct, specifically for judgementWhether the form of the described data that receive is consistent with default form, if so, described in confirming, receivesThe correct format of data, otherwise, the format error of the data that receive described in confirmation.
17. devices according to claim 16, is characterized in that, described extraction module, specifically forData in the data that receive described in extracting according to described default form in default byte.
18. devices according to claim 12, is characterized in that, also comprise:
The 5th judge module, wraps for for the data that receive when described device more, carries out many data receivers,When described the first judge module is judged described First ray number with described the second sequence numbers match, described in judgementWhether the data that receive are the last item data, are retransmission data to be disregarded, and continue current operation,Otherwise retransmission data is disregarded, waited for and receive next data, trigger described extraction module.
19. devices according to claim 18, is characterized in that, described the 5th judge module judges instituteState whether the data that receive are the last item data, specifically for default in the data that receive described in judgingWhether the data in byte are preset data.
20. devices according to claim 12, is characterized in that, also comprise:
The 6th judge module, for judging described First ray number and described the when described the first judge moduleWhen two sequence numbers, judge whether described the second sequence number and default step-length sum equal described the first orderRow number;
Described more new module, specifically for judging that when described the 6th judge module described the second sequence number is with defaultWhen step-length sum equals described First ray, upgrade described the second sequence number.
21. devices according to claim 12, is characterized in that, described more new module, specifically for:
Be described First ray number by described the second sequence number update;
Or,
Described the second sequence number is added to default step-length, the second sequence number using the result obtaining after upgrading.
22. devices according to claim 12, is characterized in that, described processing module, specifically for:
In the time that the described data that receive are ciphertext signature command, described processing module is docked according to preset algorithmThe ciphertext signature command of receiving is decrypted, and obtains expressly signature command, according to the plaintext signature command obtainingSelection algorithm, carries out signature operation according to the algorithm of selecting to message to be signed in described plaintext signature command,Obtain the result of signing, generate signature response according to the signature result obtaining, using described signature response as describedExecution result;
When the described data that receive are ciphertext while obtaining random number instruction, described processing module is according to pre-imputationMethod is obtained random number instruction to the ciphertext receiving and is decrypted, and obtains expressly obtaining random number instruction, according toThe plaintext obtaining obtains random number instruction, and call hardware random number engine and generate hardware random number seed, according toThe hardware random number seed generating generates pseudo random number, generates random number response according to the pseudo random number generating,Described random number is responded as described execution result;
In the time that the described data that receive are the instruction of ciphertext checking PIN code, described processing module is according to pre-imputationMethod is decrypted the ciphertext checking PIN code instruction receiving, and obtains the instruction of plain text authentication PIN code, judgementWhether the PIN code in the instruction of described plain text authentication PIN code is identical with the PIN code that described device is preserved, ifIdentical, generate the correct PIN that tests of checking PIN code and correctly respond, described in inciting somebody to action, test PIN and correctly respond conductDescribed execution result, otherwise generate checking PIN code mistake test PIN errored response, will described in test PIN mistakeMistake response is as described execution result;
When the described data that receive are that ciphertext generates key during to instruction, described processing module is according to pre-imputationMethod generates key to the ciphertext receiving instruction is decrypted, obtains expressly generating key to instruction, according toThe plaintext obtaining generates key to instruction, checks in key storage district whether have key, if existed,Using the PKI existing as described execution result, otherwise generate RSA or SM2 unsymmetrical key pair, will generateThe PKI of unsymmetrical key centering as described execution result.
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CN103561479A (en) * 2013-10-17 2014-02-05 东软熙康健康科技有限公司 Bluetooth device communication method and device
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