CN102509141A - Electronic group-buying coupon and usage and system of electronic group-buying coupon - Google Patents
Electronic group-buying coupon and usage and system of electronic group-buying coupon Download PDFInfo
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- CN102509141A CN102509141A CN2011103353196A CN201110335319A CN102509141A CN 102509141 A CN102509141 A CN 102509141A CN 2011103353196 A CN2011103353196 A CN 2011103353196A CN 201110335319 A CN201110335319 A CN 201110335319A CN 102509141 A CN102509141 A CN 102509141A
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Abstract
The invention discloses a two-dimensional bar code group-buying coupon and usage and a system of the coupon. The two-dimensional bar code group-buying coupon is in a form of a two-dimensional bar code image. Steps for converting information of the group-buying coupon into a two-dimensional bar code group-buying coupon include digital signature, digital encryption, Base64 coding and two-dimensional bar code coding. Steps for using the two-dimensional bar code group-buying coupon to read the information of the group-buying coupon include two-dimensional bar code decoding, Base64 decoding, digital decoding and digital signature verification. The system comprises the two-dimensional bar code group-buying coupon, a merchant computer, a customer computer, a group-buying server, a short message modem, a customer cellphone, a mobile storage medium, a customer printer and a two-dimensional bar code reader. The two-dimensional bar code group-buying coupon is high in information capacity, convenient in reading, safe, reliable and available offline, and operating costs can be reduced for merchants participated in group-buying.
Description
Technical field
The present invention relates to e-commerce field, more particularly, relate to a kind of electronics that is used for the ecommerce activity of purchasing by group and purchase by group certificate and method of application and system.
Background technology
Along with the development of internet and e-commerce technology, the online transaction scale constantly enlarges, and a large amount of e-commerce websites and transaction platform have occurred, and wherein, purchasing by group becomes a kind of new ecommerce marketing model.Because group buying websites is with name and businessman's negotiation of bulk purchase; Businessman tends to significantly make a price reduction vending articles; Thereby the consumer can so the form that purchases by group more and more obtains liking of consumer, be developed very rapid with much lower than usual price purchase commodity through group buying websites.
Present ecommerce purchases by group procedure: the information of group buying websites issue businessman discounting interest concessions commodity; And set one and purchase by group time bar; The consumer can place an order and pay the bill through group buying websites in this time; Generate a sequence number after group buying websites confirms an order and send to consumer's mobile phone through note, this sequence number is promptly represented and is purchased by group certificate, and the consumer relies on this sequence number to be consumed to businessman; Businessman is input to group buying websites with this sequence number and verifies, provides commodity or service is provided to the consumer through verifying the back.Forget or lose this sequence number for fear of the consumer, some group buying websites provides and purchases by group certificate and download and printing function, and the consumer can consume from the certificate that purchases by group that line printing comprises sequence number.There is following problem in this method of purchasing by group at present:
1, only use sequence number as the method poor stability that purchases by group certificate, sequence number is stolen by other people easily and is used, and also has the possibility of being grasped the sequence number create-rule by other people simultaneously.
2, because sequence number itself does not possess any implication; Thereby can not use by off-line; Businessman must send sequence number to group buying websites through the mode of networking and verify; A Net-connected computer that is used to purchase by group consumption must be prepared by businessman, when the amount of purchasing by group is bigger, also needs the special messenger to operate this computing machine.
3, unique sequence number can only be as the voucher of particular commodity, and the consumer buys a plurality of same commodity through group buying websites and just obtains a plurality of sequence numbers, and businessman also must verify one by one when getting goods, inefficiency.
At present in other electronic business modes; Also there is part businessman to adopt two-dimensional bar code as the electronic coupons carrier; Coupon information encoded through two-dimensional bar code send to consumer's mobile phone after forming picture; Businessman only need adopt the two-dimensional bar code reader that the two-dimensional barcode image on the mobile phone is taken identification during checking, just can read billing information automatically.But this two-dimensional bar code electronic coupons are identical with sequence number electronic coupons essence, although read easy to carryly, security is not high.
Therefore in ecommerce purchases by group, need a kind of new electronics to purchase by group certificate, can write down more information, support off-line trading and possess security, by more multi-level consumer is accepted.
Summary of the invention
The object of the present invention is to provide a kind of two-dimensional bar code that is used for the ecommerce activity of purchasing by group to purchase by group certificate and method of application and system; Be intended to solve the poor stability that prior art exists; Do not support off-line trading, can not write down the type of purchase commodity and the problem of quantity.
In order to realize goal of the invention, the form that said two-dimensional bar code purchases by group certificate 100 is a two-dimensional bar code, can be in the two-dimensional bar codes such as PDF417, Maxi Code, QR Code, Data Matrix a kind of.
Comprise digital signature, digital encryption, Base64 coding and two-dimensional bar code coding with purchasing by group the step that the certificate information translation becomes two-dimensional bar code to purchase by group certificate 100.
Utilizing two-dimensional bar code to purchase by group certificate 100 reads the step that purchases by group certificate information and comprises two-dimensional bar code decoding, Base64 decoding, digital decrypted and certifying digital signature.
The said content that purchases by group certificate information can include but not limited to following content: sequence number, Merchant ID, consumer ID, commodity ID, quantity and valid period.
Said sequence number is to purchase by group the unique identifier of certificate in group buying websites, and the sequence number that different two-dimensional bar codes purchases by group storage in the certificate 100 can not repeat;
Said Merchant ID, consumer ID, commodity ID are respectively businessman, consumer, the commodity unique identifiers in group buying websites, and the ID of different businessmans, consumer, commodity can not repeat;
Said quantity is the quantity that purchases by group commodity in the certificate;
Said valid period is the term of life that purchases by group certificate.
The present invention also aims to provide a kind of two-dimensional bar code that adopts to purchase by group the method that certificate carries out the ecommerce activity of purchasing by group, to solve the problem that prior art exists better.For the purpose that realizes inventing, said employing two-dimensional bar code purchases by group certificate to carry out ecommerce and purchases by group movable method and may further comprise the steps:
(1) preparatory stage: it is that oneself generates a pair of unsymmetrical key that group buying websites adopts asymmetric cryptographic algorithm in advance, comprises PKI and private key.When businessman registers in group buying websites; Group buying websites also adopts asymmetric cryptographic algorithm to generate a pair of unsymmetrical key for this businessman; The PKI that keeps this businessman consigns to businessman with the private key of this businessman and the PKI of group buying websites, generates a Merchant ID for this businessman simultaneously.Can issue commodity after businessman's registration finishes, each commodity has a commodity ID.When the consumer registered in group buying websites, group buying websites generated a consumer ID for the consumer;
(2) done through network: the consumer places an order to certain commodity on group buying websites;
(3) generation purchases by group certificate: after group buying websites confirms an order; What generation comprised data such as sequence number, Merchant ID, commodity ID, consumer ID, commodity amount, valid period purchases by group certificate expressly (purchasing by group certificate information); Utilize the private key of oneself expressly to carry out digital signature then to purchasing by group certificate; The information of the PKI that utilizes the businessman under these commodity again after to digital signature is encrypted, and generates two-dimensional barcode image at last, as consumer's the certificate that purchases by group;
(4) use and to purchase by group certificate: the consumer carries this two-dimensional bar code and purchases by group certificate (two-dimensional bar code is deposited in the cell phone multimedia message or is printed on the paper) and consume to businessman;
(5) read and purchase by group certificate: businessman at first uses the two-dimensional bar code reader to read two-dimensional bar code; Use the private key of oneself to decipher then; Utilize the group buying websites PKI to carry out digital signature authentication again; Checking through after obtain and purchase by group certificate information expressly, businessman provides commodity or service according to purchasing by group certificate information to the consumer after confirming that this certificate does not use;
(6) upload and purchase by group certificate: businessman passes back in real time through the internet and purchases by group the certificate sequence number, and perhaps businessman's accumulative total some purchases by group certificate, reports in batches to group buying websites through mobile memory medium to purchase by group the certificate serial number data, and group buying websites is returned businessman's revenue sharing.
In the said step (6),, then must employing pass the method that purchases by group the certificate sequence number in real time back,, avoid the single certificate that purchases by group to be consumed in a plurality of branch to guarantee the synchronous in real time of data if there are a plurality of branch in businessman.
In the said method, businessman can with a plurality of group buying websites cooperations, the PKI that only needs to preserve the group buying websites of all cooperations gets final product, and regularly or in real time uploads to group buying websites and purchases by group the certificate data.
The present invention also aims to provide a kind of two-dimensional bar code that adopts to purchase by group the system that certificate carries out the ecommerce activity of purchasing by group, to solve the problem that prior art exists better.
In order to realize the purpose of invention better; Said system comprises that two-dimensional bar code purchases by group certificate 100, merchant computer 200, consumer's computing machine 300, purchases by group server 400, note cat 500, consumer's mobile phone 600, mobile memory medium 700, consumer's printer 800 and two-dimensional bar code reader 900 are formed, wherein:
Said consumer's computing machine 300 is communicated by letter with purchasing by group server 400 through the internet, is used for consumer's browse commodities information and places an order with purchasing by group;
Said note cat 500 through RS-232 serial ports or USB interface with purchase by group server 400 and link to each other, be used for two-dimensional bar code being purchased by group certificate 100 and send to consumer's mobile phone 600 with way of short messages through mobile communications network;
Said consumer's printer 800 links to each other with consumer's computing machine 300 through parallel port or USB interface, and consumer's computing machine 300 can be controlled 800 printings of expense person's printer and purchase by group certificate 100 from purchasing by group server 400 download two-dimensional bar codes;
Optional, said merchant computer 200 is communicated by letter with purchasing by group server 400 through the internet, is used to issue merchandise news and passes back in real time purchase by group the certificate sequence number;
Said two-dimensional bar code reader 900 links to each other with merchant computer 200 through RS-232 serial ports or USB interface, and merchant computer 200 can be controlled two-dimensional bar code reader 900 and read in consumer's mobile phone 600 or the two-dimensional bar code of printing purchases by group certificate 100;
Said merchant computer 200 can be stored in mobile memory medium 700 with purchasing by group the certificate sequence number, utilizes mobile memory medium 700 will purchase by group the certificate serial number data and is sent in batches and purchases by group server 400.
The said server 400 that purchases by group comprises subscriber interface module 401, trade company's data reporting module 402, DBM 403, order processing module 404 and purchases by group certificate generation module 405, wherein:
Said subscriber interface module 401 and DBM 403, order processing module 404 and to purchase by group certificate generation module 405 mutual; Be used to receive the request of placing an order of purchasing by group of consumer; The information of placing an order is sent into order processing module 404, consumer's online payment passage is provided, and generation purchases by group certificate in purchasing by group certificate generation module 405; Send to consumer's mobile phone or offer the consumer and download, all data all leave in the DBM 403;
Said trade company data reporting module 402 is mutual with DBM 403, be used to receive businessman send return purchase by group the certificate sequence number, provide through the batch of mobile memory medium and upload and uploading two kinds in real time and upload mode through the internet;
Said DBM 403 and subscriber interface module 401, trade company's data reporting module 402, order processing module 404 and to purchase by group certificate generation module 405 mutual provide data interim and longer-term storage function;
Said order processing module 404 and subscriber interface module 401, DBM 403 and to purchase by group certificate generation module 405 mutual; Be used for generating order according to consumer's information that places an order; Order data is stored in DBM 403; And notice purchases by group certificate generation module 405 and generates and purchase by group certificate, will purchase by group certificate and send to consumer's mobile phone or offer the consumer and download;
The said certificate generation module 405 that purchases by group is used for generating according to order data and purchases by group certificate, wherein comprises digital signature submodule 4051, data encryption submodule 4052 and two-dimensional bar code and generates submodule 4053:
Said digital signature submodule 4051 at first generates according to order data and purchases by group the certificate data, adopts the group buying websites private key to carry out digital signature to purchasing by group the certificate data again;
Said data encryption submodule 4052 utilizes the PKI of the affiliated businessman of commodity that the certificate data that purchase by group after signing are encrypted, and re-uses Base64 character code algorithm the binary add ciphertext data is carried out character code;
Binary encrypted after said two-dimensional bar code generation submodule 4053 adopts the two-dimensional bar code coding algorithms to character code purchases by group the certificate data and encodes, and generates two-dimensional barcode image.
Said merchant computer 200 comprises subscriber interface module 201, data recordin module 202, data decryption module 203 and digital signature authentication module 204, wherein:
Said subscriber interface module 201 is mutual with data recordin module 202; The data logging data logging modle 202 that can the two-dimensional bar code reader be read; And can from data recordin module 202, obtain and purchase by group the certificate data after the deciphering, also provide to be loaded into mobile memory medium in batches and will to purchase by group the function that the certificate sequence number is uploaded in real time through the internet with purchasing by group the certificate sequence number;
Said data recordin module 202 is mutual with subscriber interface module 201 and data decryption module 203, is used to write down the data that purchase by group certificate deciphering front and back;
Said data decryption module 203 is mutual with data recordin module 202; Being used for extracting the data that purchase by group before certificate is deciphered from data recordin module 202 deciphers again; Decrypting process: at first the certificate data that purchase by group before deciphering are carried out the Base64 decoding; Utilize the private key of businessman oneself that binary data is deciphered again, what generate deciphering purchases by group the certificate data, passes digital signature authentication module 204 back;
Said digital signature authentication module 204 utilizes the group buying websites PKI that the certificate data that purchase by group of deciphering are carried out digital signature authentication, as verifies that success just will purchase by group certificate and expressly deposit data recordin module 202 in, supplies subscriber interface module 201 to inquire about and call.
The present invention compared with prior art has following advantage and beneficial effect:
1, compare with the certificate that purchases by group that only adopts sequence number, it is big that two-dimensional bar code of the present invention purchases by group the certificate information capacity, can deposit more sequence information, and can read automatically through the two-dimensional bar code arrangement for reading, convenient and swift;
2, two-dimensional bar code of the present invention purchases by group certificate and adopted asymmetric cryptographic technique, and is safe and reliable, and data were advanced encryption, and the source is through checking;
3, but two-dimensional bar code of the present invention purchases by group the use of certificate off-line, does not require that the computing machine of businessman must be networked, the operating cost of the businessman that the reduction participation purchases by group;
4, compare with the present existing two-dimensional bar code E-consumer certificate of using, the two-dimensional bar code that this paper proposes purchases by group certificate owing to adopt asymmetric cryptographic technique to sign and encrypt to raw data, thereby has strengthened security, does not increase new hardware device simultaneously.
Description of drawings
Fig. 1 is that two-dimensional bar code of the present invention purchases by group the generation of certificate and the synoptic diagram of read method;
Fig. 2 is that employing two-dimensional bar code of the present invention purchases by group the structural representation that certificate carries out the system of the ecommerce activity of purchasing by group;
Fig. 3 is the module map that purchases by group server among Fig. 2;
Fig. 4 is the submodule figure that purchases by group the certificate generation module among Fig. 3;
Fig. 5 is the module map of merchant computer among Fig. 2;
Fig. 6 generates the schematic flow sheet that two-dimensional bar code purchases by group certificate in the embodiments of the invention;
Fig. 7 reads the schematic flow sheet that two-dimensional bar code purchases by group certificate in the embodiments of the invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done further detailed description, but embodiment of the present invention is not limited thereto.
Embodiment 1
As shown in Figure 1, a kind ofly be used for ecommerce and purchase by group movable two-dimensional bar code and purchase by group certificate, the form that said two-dimensional bar code purchases by group certificate 100 is a two-dimensional bar code, can be in the two-dimensional bar codes such as PDF417, Maxi Code, QR Code, Data Matrix a kind of.
Comprise digital signature, digital encryption, Base64 coding and two-dimensional bar code coding with purchasing by group the step that the certificate information translation becomes two-dimensional bar code to purchase by group certificate 100.
Utilizing two-dimensional bar code to purchase by group certificate 100 reads the step that purchases by group certificate information and comprises two-dimensional bar code decoding, Base64 decoding, digital decrypted and certifying digital signature.
The said content that purchases by group certificate information can include but not limited to following content: sequence number, Merchant ID, consumer ID, commodity ID, quantity and valid period.
Said sequence number is to purchase by group the unique identifier of certificate in group buying websites, and the sequence number that different two-dimensional bar codes purchases by group storage in the certificate 100 can not repeat;
Said Merchant ID, consumer ID, commodity ID are respectively businessman, consumer, the commodity unique identifiers in group buying websites, and the ID of different businessmans, consumer, commodity can not repeat;
Said quantity is the quantity that purchases by group commodity in the certificate;
Said valid period is the term of life that purchases by group certificate.
As shown in Figure 2; Use that this two-dimensional bar code purchases by group that certificate carries out that ecommerce purchases by group that movable system comprises that two-dimensional bar code purchases by group certificate 100, merchant computer 200, consumer's computing machine 300, purchases by group server 400, note cat 500, consumer's mobile phone 600, mobile memory medium 700, consumer's printer 800 and two-dimensional bar code reader 900 form, wherein:
Said consumer's computing machine 300 is communicated by letter with purchasing by group server 400 through the internet, is used for consumer's browse commodities information and places an order with purchasing by group;
Said note cat 500 through RS-232 serial ports or USB interface with purchase by group server 400 and link to each other, be used for two-dimensional bar code being purchased by group certificate 100 and send to consumer's mobile phone 600 with way of short messages through mobile communications network;
Said consumer's printer 800 links to each other with consumer's computing machine 300 through parallel port or USB interface, and consumer's computing machine 300 can be controlled 800 printings of expense person's printer and purchase by group certificate 100 from purchasing by group server 400 download two-dimensional bar codes;
Optional, said merchant computer 200 is communicated by letter with purchasing by group server 400 through the internet, is used to issue merchandise news and passes back in real time purchase by group the certificate sequence number;
Said two-dimensional bar code reader 900 links to each other with merchant computer 200 through RS-232 serial ports or USB interface, and merchant computer 200 can be controlled two-dimensional bar code reader 900 and read in consumer's mobile phone 600 or the two-dimensional bar code of printing purchases by group certificate 100;
Said merchant computer 200 can be stored in mobile memory medium 700 with purchasing by group the certificate sequence number, utilizes mobile memory medium 700 will purchase by group the certificate serial number data and is sent in batches and purchases by group server 400.
As shown in Figure 3, the said server 400 that purchases by group comprises subscriber interface module 401, trade company's data reporting module 402, DBM 403, order processing module 404 and purchases by group certificate generation module 405, wherein:
Said subscriber interface module 401 and DBM 403, order processing module 404 and to purchase by group certificate generation module 405 mutual; Be used to receive the request of placing an order of purchasing by group of consumer; The information of placing an order is sent into order processing module 404, consumer's online payment passage is provided, and generation purchases by group certificate in purchasing by group certificate generation module 405; Send to consumer's mobile phone or offer the consumer and download, all data all leave in the DBM 403;
Said trade company data reporting module 402 is mutual with DBM 403, be used to receive businessman send return purchase by group the certificate sequence number, provide through the batch of mobile memory medium and upload and uploading two kinds in real time and upload mode through the internet;
Said DBM 403 and subscriber interface module 401, trade company's data reporting module 402, order processing module 404 and to purchase by group certificate generation module 405 mutual provide data interim and longer-term storage function;
Said order processing module 404 and subscriber interface module 401, DBM 403 and to purchase by group certificate generation module 405 mutual; Be used for generating order according to consumer's information that places an order; Order data is stored in DBM 403; And notice purchases by group certificate generation module 405 and generates and purchase by group certificate, will purchase by group certificate and send to consumer's mobile phone or offer the consumer and download;
The said certificate generation module 405 that purchases by group is used for generating according to order data and purchases by group certificate, and is as shown in Figure 4, and the said certificate generation module 405 that purchases by group comprises digital signature submodule 4051, data encryption submodule 4052 and two-dimensional bar code and generates submodule 4053, wherein:
Said digital signature submodule 4051 at first generates according to order data and purchases by group the certificate data, adopts the group buying websites private key to carry out digital signature to purchasing by group the certificate data again;
Said data encryption submodule 4052 utilizes the PKI of the affiliated businessman of commodity that the certificate data that purchase by group after signing are encrypted, and re-uses Base64 character code algorithm the binary add ciphertext data is carried out character code;
Binary encrypted after said two-dimensional bar code generation submodule 4053 adopts the two-dimensional bar code coding algorithms to character code purchases by group the certificate data and encodes, and generates two-dimensional barcode image.
As shown in Figure 5, said merchant computer 200 comprises subscriber interface module 201, data recordin module 202, data decryption module 203 and digital signature authentication module 204, wherein:
Said subscriber interface module 201 is mutual with data recordin module 202; The data logging data logging modle 202 that can the two-dimensional bar code reader be read; And can from data recordin module 202, obtain and purchase by group the certificate data after the deciphering, also provide to be loaded into mobile memory medium in batches and will to purchase by group the function that the certificate sequence number is uploaded in real time through the internet with purchasing by group the certificate sequence number;
Said data recordin module 202 is mutual with subscriber interface module 201 and data decryption module 203, is used to write down the data that purchase by group certificate deciphering front and back;
Said data decryption module 203 is mutual with data recordin module 202; Being used for extracting the data that purchase by group before certificate is deciphered from data recordin module 202 deciphers again; Decrypting process: at first the certificate data that purchase by group before deciphering are carried out the Base64 decoding; Utilize the private key of businessman oneself that binary data is deciphered again, what generate deciphering purchases by group the certificate data, passes digital signature authentication module 204 back;
Said digital signature authentication module 204 utilizes the group buying websites PKI that the certificate data that purchase by group of deciphering are carried out digital signature authentication, as verifies that success just will purchase by group certificate and expressly deposit data recordin module 202 in, supplies subscriber interface module 201 to inquire about and call.
Adopting this two-dimensional bar code to purchase by group certificate carries out ecommerce and purchases by group movable method and may further comprise the steps:
(1) preparatory stage: it is that oneself generates a pair of unsymmetrical key that group buying websites adopts asymmetric cryptographic algorithm in advance, comprises PKI and private key.When businessman registers in group buying websites; Group buying websites also adopts asymmetric cryptographic algorithm to generate a pair of unsymmetrical key for this businessman; The PKI that keeps this businessman consigns to businessman with the private key of this businessman and the PKI of group buying websites, generates a Merchant ID for this businessman simultaneously.Can issue commodity after businessman's registration finishes, each commodity has a commodity ID.When the consumer registered in group buying websites, group buying websites generated a consumer ID for the consumer;
(2) done through network: the consumer places an order to certain commodity on group buying websites;
(3) generation purchases by group certificate: after group buying websites confirms an order; What generation comprised data such as sequence number, Merchant ID, commodity ID, consumer ID, commodity amount, valid period purchases by group certificate expressly (purchasing by group certificate information); Utilize the private key of oneself expressly to carry out digital signature then to purchasing by group certificate; The information of the PKI that utilizes the businessman under these commodity again after to digital signature is encrypted, and generates two-dimensional barcode image at last, as consumer's the certificate that purchases by group;
(4) use and to purchase by group certificate: the consumer carries this two-dimensional bar code and purchases by group certificate (two-dimensional bar code is deposited in the cell phone multimedia message or is printed on the paper) and consume to businessman;
(5) read and purchase by group certificate: businessman at first uses the two-dimensional bar code reader to read two-dimensional bar code; Use the private key of oneself to decipher then; Utilize the group buying websites PKI to carry out digital signature authentication again; Checking through after obtain and purchase by group certificate information expressly, businessman provides commodity or service according to purchasing by group certificate information to the consumer after confirming that this certificate does not use;
(6) upload and purchase by group certificate: businessman passes back in real time through the internet and purchases by group the certificate sequence number, and perhaps businessman's accumulative total some purchases by group certificate, reports in batches to group buying websites through mobile memory medium to purchase by group the certificate serial number data, and group buying websites is returned businessman's revenue sharing.
As shown in Figure 6, the middle group buying websites of said step (3) generates the flow process that purchases by group certificate and comprises following substep:
(S301) at first create the plaintext that purchases by group certificate according to sequence information; Can comprise information such as sequence number, Merchant ID, commodity ID, consumer ID, commodity amount, valid period; Re-use the group buying websites private key raw data is carried out digital signature; Digital signature is attached to expressly back, forms the certificate information that purchases by group after signing;
(S302) utilize businessman's PKI that the certificate information that purchases by group after signing is encrypted, the encryption that forms binary mode purchases by group certificate information;
(S303) utilize the Base64 character code that binary encryption is purchased by group the certificate data and carry out character code, the encryption that forms the Base64 coding form purchases by group certificate information;
(S304) utilize the two-dimensional bar code coding algorithm that the encryption of Base64 coding form is purchased by group certificate information and encode, generate two-dimensional barcode image, this image is and finally purchases by group certificate.
In the said step (3), the order of digital signature and encryption can not be put upside down, otherwise signing messages might be forged by the third party, reduces purchasing by group the certificate security.
As shown in Figure 7, in the said step (5), businessman reads and purchases by group the certificate flow process and comprise following substep:
(S501) use the two-dimensional bar code reader to read and decode and purchase by group the certificate view data, the encryption that forms Base64 character code form purchases by group certificate information;
(S502) encryption of Base64 character code form is purchased by group certificate information and carry out the character-coded decoding of Base64, the encryption that forms binary mode purchases by group certificate information;
(S503) utilize businessman's private key that binary data is deciphered, form the deciphering that comprises digital signature and purchase by group certificate information;
(S504) utilize the group buying websites PKI that digital signature is partly verified, read after verifying successfully and purchase by group the certificate clear data, these data are the real data that purchases by group certificate.
In the said step (6),, then must employing pass the method that purchases by group the certificate sequence number in real time back,, avoid the single certificate that purchases by group to be consumed in a plurality of branch to guarantee the synchronous in real time of data if there are a plurality of branch in businessman.
In the said method, businessman can with a plurality of group buying websites cooperations, the PKI that only needs to preserve the group buying websites of all cooperations gets final product, and regularly or in real time uploads to group buying websites and purchases by group the certificate data.
As stated, can realize preferably that just the present invention, the foregoing description are merely preferred embodiment of the present invention, be not to be used for limiting practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modification, all contained by claim of the present invention scope required for protection.
Claims (8)
1. a two-dimensional bar code purchases by group certificate, it is characterized in that, its form is a two-dimensional bar code.
2. one kind is adopted two-dimensional bar code to purchase by group the method that certificate carries out the ecommerce activity of purchasing by group, and it is characterized in that, may further comprise the steps:
(1) preparatory stage: it is that oneself generates a pair of unsymmetrical key that group buying websites adopts asymmetric cryptographic algorithm in advance, comprises PKI and private key.When businessman registers in group buying websites; Group buying websites also adopts asymmetric cryptographic algorithm to generate a pair of unsymmetrical key for this businessman; The PKI that keeps this businessman consigns to businessman with the private key of this businessman and the PKI of group buying websites, generates a Merchant ID for this businessman simultaneously.Can issue commodity after businessman's registration finishes, each commodity has a commodity ID.When the consumer registered in group buying websites, group buying websites generated a consumer ID for the consumer;
(2) done through network: the consumer places an order to certain commodity on group buying websites;
(3) generation purchases by group certificate: after group buying websites confirms an order; What generation comprised data such as sequence number, Merchant ID, commodity ID, consumer ID, commodity amount, valid period purchases by group certificate expressly (purchasing by group certificate information); Utilize the private key of oneself expressly to carry out digital signature then to purchasing by group certificate; The information of the PKI that utilizes the businessman under these commodity again after to digital signature is encrypted, and generates two-dimensional barcode image at last, as consumer's the certificate that purchases by group;
(4) use and to purchase by group certificate: the consumer carries this two-dimensional bar code and purchases by group certificate (two-dimensional bar code is deposited in the cell phone multimedia message or is printed on the paper) and consume to businessman;
(5) read and purchase by group certificate: businessman at first uses the two-dimensional bar code reader to read two-dimensional bar code; Use the private key of oneself to decipher then; Utilize the group buying websites PKI to carry out digital signature authentication again; Checking through after obtain and purchase by group certificate information expressly, businessman provides commodity or service according to purchasing by group certificate information to the consumer after confirming that this certificate does not use;
(6) upload and purchase by group certificate: businessman passes back in real time through the internet and purchases by group the certificate sequence number, and perhaps businessman's accumulative total some purchases by group certificate, reports in batches to group buying websites through mobile memory medium to purchase by group the certificate serial number data, and group buying websites is returned businessman's revenue sharing.
3. a kind of two-dimensional bar code that adopts according to claim 2 purchases by group the method that certificate carries out the ecommerce activity of purchasing by group, and it is characterized in that, the middle group buying websites of said step (3) generates the flow process that purchases by group certificate and comprises following substep:
(S301) at first create the plaintext that purchases by group certificate according to sequence information; Can comprise information such as sequence number, Merchant ID, commodity ID, consumer ID, commodity amount, valid period; Re-use the group buying websites private key raw data is carried out digital signature; Digital signature is attached to expressly back, forms the certificate information that purchases by group after signing;
(S302) utilize businessman's PKI that the certificate information that purchases by group after signing is encrypted, the encryption that forms binary mode purchases by group certificate information;
(S303) utilize the Base64 character code that binary encryption is purchased by group the certificate data and carry out character code, the encryption that forms the Base64 coding form purchases by group certificate information;
(S304) utilize the two-dimensional bar code coding algorithm that the encryption of Base64 coding form is purchased by group certificate information and encode, generate two-dimensional barcode image, this image is and finally purchases by group certificate.
4. according to claim 2ly a kind ofly adopt two-dimensional bar code to purchase by group certificate to carry out ecommerce and purchase by group movable method, it is characterized in that, in the said step (5), businessman reads and purchases by group the certificate flow process and comprise following substep:
(S501) use the two-dimensional bar code reader to read and decode and purchase by group the certificate view data, the encryption that forms Base64 character code form purchases by group certificate information;
(S502) encryption of Base64 character code form is purchased by group certificate information and carry out the character-coded decoding of Base64, the encryption that forms binary mode purchases by group certificate information;
(S503) utilize businessman's private key that binary data is deciphered, form the deciphering that comprises digital signature and purchase by group certificate information;
(S504) utilize the group buying websites PKI that digital signature is partly verified, read after verifying successfully and purchase by group the certificate clear data, these data are the real data that purchases by group certificate.
5. one kind is adopted two-dimensional bar code to purchase by group the system that certificate carries out the ecommerce activity of purchasing by group; It is characterized in that; Comprise that two-dimensional bar code purchases by group certificate (100), merchant computer (200), consumer's computing machine (300), purchases by group server (400), note cat (500), consumer's mobile phone (600), mobile memory medium (700), consumer's printer (800) and two-dimensional bar code reader (900) form, wherein:
Said consumer's computing machine (300) is communicated by letter with purchasing by group server (400) through the internet, is used for consumer's browse commodities information and places an order with purchasing by group;
Said note cat (500) through RS-232 serial ports or USB interface with purchase by group server (400) and link to each other, be used for two-dimensional bar code being purchased by group certificate (100) and send to consumer's mobile phone (600) with way of short messages through mobile communications network;
Said consumer's printer (800) links to each other with consumer's computing machine (300) through parallel port or USB interface, and consumer's computing machine (300) can be controlled expense person's printer (800) printing and purchase by group certificate (100) from purchasing by group server (400) download two-dimensional bar code;
Optional, said merchant computer (200) is communicated by letter with purchasing by group server (400) through the internet, is used to issue merchandise news and passes back in real time purchase by group the certificate sequence number;
Said two-dimensional bar code reader (900) links to each other with merchant computer (200) through RS-232 serial ports or USB interface, and merchant computer (200) can be controlled two-dimensional bar code reader (900) and read in consumer's mobile phone (600) perhaps that the two-dimensional bar code of printing purchases by group certificate (100);
Said merchant computer (200) can be stored in mobile memory medium (700) with purchasing by group the certificate sequence number, utilizes mobile memory medium (700) will purchase by group the certificate serial number data and is sent in batches and purchases by group server (400).
6. a kind of two-dimensional bar code that adopts according to claim 5 purchases by group the system that certificate carries out the ecommerce activity of purchasing by group; It is characterized in that; The said server (400) that purchases by group comprises subscriber interface module (401), trade company's data reporting module (402), DBM (403), order processing module (404) and purchases by group certificate generation module (405), wherein:
Said subscriber interface module (401) is with DBM (403), order processing module (404) and purchase by group certificate generation module (405) alternately; Be used to receive the request of placing an order of purchasing by group of consumer; The information of placing an order is sent into order processing module (404), consumer's online payment passage is provided, and generation purchases by group certificate in purchasing by group certificate generation module (405); Send to consumer's mobile phone or offer the consumer and download, all data all leave in the DBM (403);
Said trade company's data reporting module (402) and DBM (403) are mutual, be used to receive businessman send return purchase by group the certificate sequence number, provide through the batch of mobile memory medium and upload and uploading two kinds in real time and upload mode through the internet;
Said DBM (403) is with subscriber interface module (401), trade company's data reporting module (402), order processing module (404) and purchase by group certificate generation module (405) alternately, provides data interim and longer-term storage function;
Said order processing module (404) is with subscriber interface module (401), DBM (403) and purchase by group certificate generation module (405) alternately; Be used for generating order according to consumer's information that places an order; Order data is stored in DBM (403); And notice purchases by group certificate generation module (405) and generates and to purchase by group certificate, will purchase by group certificate and send to consumer's mobile phone or offer the consumer and download;
The said certificate generation module (405) that purchases by group is used for generating according to order data and purchases by group certificate.
7. a kind of two-dimensional bar code that adopts according to claim 5 purchases by group the system that certificate carries out the ecommerce activity of purchasing by group; It is characterized in that; The said certificate generation module (405) that purchases by group comprises digital signature submodule (4051), data encryption submodule (4052) and two-dimensional bar code generation submodule (4053), wherein:
Said digital signature submodule (4051) at first generates according to order data and purchases by group the certificate data, adopts the group buying websites private key to carry out digital signature to purchasing by group the certificate data again;
Said data encryption submodule (4052) utilizes the PKI of the affiliated businessman of commodity that the certificate data that purchase by group after signing are encrypted, and re-uses Base64 character code algorithm the binary add ciphertext data is carried out character code;
Binary encrypted after said two-dimensional bar code generation submodule (4053) adopts the two-dimensional bar code coding algorithm to character code purchases by group the certificate data and encodes, and generates two-dimensional barcode image.
8. a kind of two-dimensional bar code that adopts according to claim 5 purchases by group the system that certificate carries out the ecommerce activity of purchasing by group; It is characterized in that; Said merchant computer (200) comprises subscriber interface module (201), data recordin module (202), data decryption module (203) and digital signature authentication module (204), wherein:
Said subscriber interface module (201) is mutual with data recordin module (202); The data logging data logging modle (202) that can the two-dimensional bar code reader be read; And can from data recordin module (202), obtain and purchase by group the certificate data after the deciphering, also provide to be loaded into mobile memory medium in batches and will to purchase by group the function that the certificate sequence number is uploaded in real time through the internet with purchasing by group the certificate sequence number;
Said data recordin module (202) is mutual with subscriber interface module (201) and data decryption module (203), is used to write down the data that purchase by group certificate deciphering front and back;
Said data decryption module (203) is mutual with data recordin module (202); Being used for extracting the data that purchase by group before certificate is deciphered from data recordin module (202) deciphers again; Decrypting process: at first the certificate data that purchase by group before deciphering are carried out the Base64 decoding; Utilize the private key of businessman oneself that binary data is deciphered again, what generate deciphering purchases by group the certificate data, passes digital signature authentication module (204) back;
Said digital signature authentication module (204) utilizes the group buying websites PKI that the certificate data that purchase by group of deciphering are carried out digital signature authentication, as verifies that success just will purchase by group certificate and expressly deposit data recordin module (202) in, supplies subscriber interface module (201) to inquire about and call.
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