CN102663640A - Remote bidding method and system - Google Patents
Remote bidding method and system Download PDFInfo
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- CN102663640A CN102663640A CN2012101324988A CN201210132498A CN102663640A CN 102663640 A CN102663640 A CN 102663640A CN 2012101324988 A CN2012101324988 A CN 2012101324988A CN 201210132498 A CN201210132498 A CN 201210132498A CN 102663640 A CN102663640 A CN 102663640A
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Abstract
The invention relates to the data security technology and particularly discloses a remote bidding method and system. The method comprises the following steps: a bidding client searches a bidding announcement, purchases bidding documents, puts forward clarification questions and acquires answers on line; the bidding client prepares the corresponding bidding documents and performs digital signature and encryption by using a digital certificate; the bidding client submits bid bond on line and uploads the digital signature and encrypted bidding documents; and a bidding server receives the bid bond and accepts the digital signature and encrypted bidding documents so as to perform the following bid opening and bid evaluation. The system comprises a bidding client and a bidding server, wherein the bidding client is used for searching the bidding announcement, purchasing the bidding documents, putting forward the clarification questions and acquiring the answers on line, and then submitting the bid bond on line and uploading the bid documents to the bidding server to provide convenience for the following bid opening and bid evaluation. Digital signature and encryption are carried out on the bidding documents by using the digital certificate, which is beneficial to improvement of the data security.
Description
Technical field
The present invention relates to the data security technology, is a kind of long-range bid method and system based on the internet specifically, can improve the data security of electronic bidding file effectively.
Background technology
At present, along with the maturation of Internet technology, various based on network application services are developed rapidly, long-range Tender System (like government procurement) a kind of instance that comes to this.So-called long-range bid is through the specified network medium are consulted the call for tender, buy the e-bidding file, made bidding document, propositions needs clarification problem, upload functions such as tender documents, online opening of bid, completion proposal activity.
For traditional bidding system, have remarkable advantages based on the long-range bidding system of internet:
During tradition is submitted a tender; In the tradition bid activity; The tenderer must arrive bid inviter's appointment local on-the-spot buys bidding document, submit the problem that needs clarification, print tender documents, (or mailing) tender documents are submitted at the scene; The winning bidder repeatedly contacts with the tenderer at these business procedures, causes and encloses mark, string mark; Tenderer's inefficiency; The bid expense is high.
In the long-range bid,, through the bid service channel, consult the call for tender, buy bidding document, propose to clear up problems through building special-purpose bid service channel; Upload tender documents, carry out long-range opening of bid, avoid the bid inviter before opening of bid, to contact, can effectively prevent to enclose mark, the generation of string target with the tenderer through network; And can increase work efficiency and work quality, reduce the bid expense.
There is certain defective in existing long-range bidding system, mainly shows the data security of electronic bidding file to be paid attention to not enough, generally only tender documents is encrypted or is carried out digital signature.Safety practice is not ideal enough, and the possibility that security performance exists tender documents to be distorted causes great potential safety hazard, and therefore being necessary to introduce a kind of data security can better long-range bid technical scheme.
Summary of the invention
To the defective of prior art, the object of the present invention is to provide a kind of long-range bid method and system, help improving the data security of electronic bidding file.
For solving above technical matters, technical scheme provided by the invention is that a kind of long-range bid method may further comprise the steps:
The bid client online query call for tender is bought bidding document, proposes to clear up problems and obtain and answer questions;
Bid client client is made corresponding tender documents, and these tender documents use digital certificate to carry out digital signature and encryption;
The online tender bond of submitting of bid client, and the tender documents after uploading this digital signature and encrypting;
The bid server receives tender bond, and the tender documents after accepting this digital signature and encrypting, so that carry out follow-up open sealed tenders.
More excellent ground, the bid client is upgraded digital certificate according to preset strategy.
More excellent ground, the bid client regularly or is irregularly upgraded digital certificate according to Preset Time.
More excellent ground, the method that the bid client is upgraded digital certificate specifically comprises:
The bid client is sent the updating digital certificate request to the CA center;
After CA receives at the center this updating digital certificate request, sign and issue digital certificate and private key again and send to the bid client;
The bid client receive the CA center return sign and issue digital certificate and private key again after, sign and issue digital certificate and private key replacement original digital certificate of bid client and private key again with this.
More excellent ground carries bid client identification and original digital certificate of bid client and private key in this updating digital certificate solicited message, can be used for the CA center and carry out following operation:
The CA center is according to the CA signature in the original digital certificate of self PKI deciphering bid client, and recovery bid client identification;
Judge whether the bid client identification that carries in the bid client identification recover and this updating digital certificate request is identical;
In this way, sign and issue digital certificate and private key again for the bid client identification;
Otherwise, refuse to sign and issue digital certificate and private key again, and return corresponding message for the bid client identification.
More excellent ground, this updating digital certificate request is encrypted with the bid client public key, and the CA center asks to decipher to this encrypted digital certificate renewal with self private key.
More excellent ground, the digital certificate and the private key of bid client are stored in the portable memory apparatus.
On this basis, the present invention is corresponding to provide a kind of long-range bidding system, comprising:
The bid client is used for the online query call for tender, buys bidding document, proposes to clear up problems and obtain and answer questions; Make corresponding tender documents, these tender documents use digital certificate to carry out digital signature and encryption; And, the online tender bond of submitting, and the tender documents after uploading this digital signature and encrypting;
The bid server is used to receive tender bond, and the tender documents after accepting this digital signature and encrypting, so that carry out follow-up open sealed tenders.
More excellent ground, this bid client is provided with the updating digital certificate unit, in order to upgrade digital certificate according to preset strategy.
More excellent ground, this bid client inserts portable memory apparatus, wherein stores by this digital certificate and private key.
Compared with prior art; In the long-range bid technical scheme provided by the invention, tender documents adopt digital certificate to sign electronically and encrypt, and can improve the data security of tender documents effectively; Prevent that tender documents from being distorted, eliminate the potential safety hazard of bidding system.Especially, also improved the update method of digital certificate further, can guarantee the safety of digital certificate itself, make digital certificate safety, upgrade easily.
Description of drawings
In order to be illustrated more clearly in the present invention or technical scheme of the prior art, will do to introduce simply to the accompanying drawing of required use in the embodiment of the invention or the prior art below.Obviously, the accompanying drawing in describing below only is some embodiments of the present invention.For those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process flow diagram of the long-range bid method of the embodiment of the invention;
Fig. 2 is the process flow diagram of digital certificate updating method in the said long-range bid method of Fig. 1;
Fig. 3 is the composition frame chart of the long-range bidding system of the embodiment of the invention.
Embodiment
The basic design of the embodiment of the invention is to carry out digital signature and encryption for tender documents with digital certificate, so that the data security of tender documents to be provided.
So-called digital certificate is a kind of authoritative electronic document, and by the just third-party institution of authority, promptly (Certificate Authority, the certificate of CA) signing and issuing is so that discern the other side's identity on the net with it at the digital certificate authentication center.The encryption technology that with the digital certificate is core can be carried out encryption and decryption, digital signature and signature verification to the information of transmission over networks, guarantees to transmit confidentiality, the integrality of information on the net.
Digital certificate adopts public key system usually, promptly utilizes a pair of key that matches each other to encrypt, decipher.Each user oneself sets one the specific private cipher key of being known in person (private key) that is merely, and deciphers and signs with it; Set a public keys (PKI) and open simultaneously, shared, be used for encrypting and certifying signature by one group of user by me.When sending a classified document, transmit leg uses take over party's PKI that data are encrypted, and the take over party then uses the private key deciphering of oneself, and information just can arrive the destination safe and punctually like this.Means through numeral guarantee that ciphering process is an irreversible process, promptly has only with private cipher key and could decipher.
The user also can adopt the private key of oneself that information is handled, and owns because private key is merely me, has so just produced the file that others can't generate, and has also just formed digital signature.Adopt digital signature, can confirm following 2 points: guarantee information is sent by signer oneself signature, and signer can not be denied or be difficult to denying; Guarantee to say to cease Zi signing and issuing the back and till receiving, do not done any modification, the file of signing and issuing is an authentic document.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Referring to Fig. 1, the process flow diagram of the long-range bid method of the expression embodiment of the invention.Tender documents in the long-range bid method of this embodiment have used the method for digital signature, so that improve the data security of tender documents, prevent that these data from being distorted, and specifically may further comprise the steps:
S101, the bid client online query call for tender are bought bidding document, propose to clear up problems and obtain and answer questions;
S102, bid client are made corresponding tender documents, and these tender documents use digital certificate to carry out digital signature and encryption;
S103, the online tender bond of submitting of bid client, and the tender documents after uploading this digital signature and encrypting;
S104, bid server receive tender bond, and the tender documents after accepting this digital signature and encrypting, to carry out follow-up open sealed tenders.
In the foregoing description bid method; Set up special-purpose bid service channel, can the on-line purchase bidding document, the online tender bond of submitting; Online submission tender documents; Can carry out the length of run opening of bid through network (like the internet) thus, avoid the bid inviter before opening of bid, to contact, can effectively prevent to enclose mark, the generation of string target with the tenderer; And can increase work efficiency and work quality, reduce the bid expense.Because the tender documents among this embodiment carry out digital certificate signature and encryption, can effectively improve the data security of tender documents, prevent that tender documents from being distorted, eliminate the potential safety hazard of bidding system.
In the embodiment of the invention, the digital certificate of bid client and private key can be stored in the portable memory apparatus (like USB KEY).Be to guarantee the security of digital certificate itself, need further, prevent that digital certificate from being stolen by other people, specifically can regularly or irregularly digital certificate be upgraded according to Preset Time according to preset strategy renewal digital certificate.
For guaranteeing further to guarantee the safety of digital certificate itself, the embodiment of the invention is improved the update mode of digital certificate, can upgrade digital certificate and private key convenient, safely, replaces original digital certificate and private key, further describes as follows.
Referring to Fig. 2, the process flow diagram of a kind of updating digital certificate of representing to use in the said long-range bid method specifically may further comprise the steps:
S201, bid client are sent the updating digital certificate request to CA center (digital certificate authentication center), carry bid client identification and original digital certificate of bid client and private key in this updating digital certificate solicited message;
After this updating digital certificate request is received at S202, CA center, sign and issue digital certificate and private key again and send to the bid client;
S203, bid client receive the CA center return sign and issue digital certificate and private key again after, sign and issue digital certificate and private key replacement original digital certificate of bid client and private key again with this.
Among the above-mentioned steps S201; The updating digital certificate request is encrypted with the bid client public key; The CA center is upgraded request with self private key to this encrypted digital certificate and is deciphered, and this helps further to improve updating digital certificate process safe property, prevents that digital certificate is by other people intercepting.
Among the above-mentioned steps S202,, carry out following operation so can be used for the CA center owing to carry bid client identification and original digital certificate of bid client and private key in this updating digital certificate solicited message:
The CA center is according to the CA signature in the original digital certificate of self PKI deciphering bid client, and recovery bid client identification;
Judge whether the bid client identification that carries in the bid client identification recover and this updating digital certificate request is identical;
In this way, sign and issue digital certificate and private key again for the bid client identification;
Otherwise, refuse to sign and issue digital certificate and private key again, and after returning corresponding message, finish this flow process for the bid client identification.
Among the above-mentioned steps S203; Because the digital certificate and the private key of bid client can be stored in the portable memory apparatus; The bid client receive the CA center return sign and issue digital certificate and private key again after; Get final product with this original digital certificate and private key of signing and issuing again in digital certificate and the private key replacement portable memory apparatus, renewal process is very succinct, safety.
More than the long-range bid method of the present invention has been carried out detailed description, a kind of long-range bidding system has been proposed on this basis, its feature is:
(1) sets up special-purpose bid service channel;
(2) can the on-line purchase bidding document;
(3) the online tender bond of submitting;
(4) online submission tender documents.
Further the long-range bidding system of the embodiment of the invention is described below.
Referring to Fig. 3, the composition frame chart of the long-range bidding system of the expression embodiment of the invention.Said long-range bidding system 300 has made up the bid designated lane, and it comprises through some bid clients 301 of Internet connection and a bid Website server 302, wherein:
This bid client 301 is used for the online query call for tender, buys bidding document, proposes to clear up problems and obtain and answer questions; Make corresponding tender documents, these tender documents use digital certificate to carry out digital signature and encryption; And, the online tender bond of submitting, and the tender documents after uploading this digital signature and encrypting;
This bid server 302 is used to receive tender bond, and the tender documents after accepting this digital signature and encrypting, so that carry out follow-up open sealed tenders.
This long-range bidding system can carry out long-range opening of bid through network, avoids the bid inviter to contact before opening of bid with the tenderer, can effectively prevent to enclose mark, the generation of string target; And can increase work efficiency and work quality, reduce the bid expense.
What is more important because the tender documents in this long-range bidding system carry out digital certificate signature and encryption, can improve the data security of tender documents effectively, prevents that tender documents from being distorted, and eliminates the potential safety hazard of bidding system.
This bid client 301 is provided with the updating digital certificate unit, in order to upgrade digital certificate according to preset strategy (as regular or irregular).Its groundwork process is: the bid client is sent the updating digital certificate request to the CA center, wherein carries bid client identification and original digital certificate of bid client and private key; After CA receives at the center this updating digital certificate request, sign and issue digital certificate and private key again and send to the bid client; The bid client receive the CA center return sign and issue digital certificate and private key again after, sign and issue digital certificate and private key replacement original digital certificate of bid client and private key again with this.
This bid client 301 can insert portable memory apparatus, wherein stores digital certificate and private key.When bid client 301 receive the CA center return sign and issue digital certificate and private key again after, just can be succinctly, sign and issue original digital certificate and private key in digital certificate and the private key replacement portable memory apparatus again with this safely.
The long-range bidding system that the foregoing description provides, its tender documents adopt digital certificate to sign electronically and encrypt, and can effectively improve the data security of tender documents, prevent that tender documents from being distorted, and eliminate the potential safety hazard of bidding system.Especially, also improved the update method of digital certificate further, can guarantee the safety of digital certificate itself, and make digital certificate can be safely, upgrade easily.
The above embodiment of the present invention can realize that for example C language, assembly language are realized with software, and corresponding software can be stored in the storage medium that can read, for example in the hard disk of computing machine, the internal memory.
Only be preferred implementation of the present invention below, should be pointed out that above-mentioned preferred implementation should not be regarded as limitation of the present invention, protection scope of the present invention should be as the criterion with claim institute restricted portion.For those skilled in the art, do not breaking away from the spirit and scope of the present invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. a long-range bid method is characterized in that, may further comprise the steps:
The bid client online query call for tender is bought bidding document, proposes to clear up problems and obtain and answer questions;
Bid client client is made corresponding tender documents, and these tender documents use digital certificate to carry out digital signature and encryption;
The online tender bond of submitting of bid client, and the tender documents after uploading this digital signature and encrypting;
The bid server receives tender bond, and the tender documents after accepting this digital signature and encrypting, so that carry out follow-up open sealed tenders.
2. long-range bid method as claimed in claim 1 is characterized in that the bid client is upgraded digital certificate according to preset strategy.
3. long-range bid method as claimed in claim 1 is characterized in that, the bid client regularly or is irregularly upgraded digital certificate according to Preset Time.
4. long-range bid method as claimed in claim 2 is characterized in that, the method that the bid client is upgraded digital certificate specifically comprises:
The bid client is sent the updating digital certificate request to the CA center;
After CA receives at the center this updating digital certificate request, sign and issue digital certificate and private key again and send to the bid client;
The bid client receive the CA center return sign and issue digital certificate and private key again after, sign and issue digital certificate and private key replacement original digital certificate of bid client and private key again with this.
5. long-range bid method as claimed in claim 4 is characterized in that, carries bid client identification and original digital certificate of bid client and private key in this updating digital certificate solicited message, can be used for the CA center and carries out following operation:
The CA center is according to the CA signature in the original digital certificate of self PKI deciphering bid client, and recovery bid client identification;
Judge whether the bid client identification that carries in the bid client identification recover and this updating digital certificate request is identical;
In this way, sign and issue digital certificate and private key again for the bid client identification;
Otherwise, refuse to sign and issue digital certificate and private key again, and return corresponding message for the bid client identification.
6. long-range bid method as claimed in claim 5 is characterized in that, this updating digital certificate request is encrypted with the bid client public key, and the CA center is upgraded this encrypted digital certificate with self private key and asked to decipher.
7. like each described long-range bid method of claim 1～6, it is characterized in that the digital certificate and the private key of bid client are stored in the portable memory apparatus.
8. a long-range bidding system is characterized in that, comprising:
The bid client is used for the online query call for tender, buys bidding document, proposes to clear up problems and obtain and answer questions; Make corresponding tender documents, these tender documents use digital certificate to carry out digital signature and encryption; And, the online tender bond of submitting, and the tender documents after uploading this digital signature and encrypting;
The bid server is used to receive tender bond, and the tender documents after accepting this digital signature and encrypting, so that carry out follow-up open sealed tenders.
9. like the said long-range bidding system of claim 8, it is characterized in that this bid client is provided with the updating digital certificate unit, in order to upgrade digital certificate according to preset strategy.
10. like claim 8 or 9 said long-range bidding systems, it is characterized in that this bid client inserts portable memory apparatus, wherein stores by this digital certificate and private key.
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| CN2012101324988A CN102663640A (en) | 2012-05-02 | 2012-05-02 | Remote bidding method and system |
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| CN2012101324988A CN102663640A (en) | 2012-05-02 | 2012-05-02 | Remote bidding method and system |
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| CN2012101324988A Pending CN102663640A (en) | 2012-05-02 | 2012-05-02 | Remote bidding method and system |
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Cited By (16)
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| CN103795523A (en) * | 2014-01-14 | 2014-05-14 | 福州市勘测院 | Multilayer electronic tender encryption and decryption system and method for electronic tendering |
| CN105678599A (en) * | 2015-12-30 | 2016-06-15 | 福建随行软件有限公司 | ttTarget guarantee fund management method |
| CN106789927A (en) * | 2016-11-28 | 2017-05-31 | 华迪计算机集团有限公司 | A kind of on-line bid method and system |
| CN106933838A (en) * | 2015-12-29 | 2017-07-07 | 北京广联达正源兴邦科技有限公司 | Tender Evaluation Method and bid evaluation system |
| CN107256481A (en) * | 2017-06-09 | 2017-10-17 | 深圳市斯维尔科技股份有限公司 | Receive Withdrawing method, device, terminal and computer-readable recording medium |
| CN107392570A (en) * | 2017-07-22 | 2017-11-24 | 江苏省鸿源招标代理股份有限公司 | A kind of whole process e-bidding bid bid evaluation system and its tender Evaluation Method of inviting and submitting bids |
| CN107895226A (en) * | 2017-11-01 | 2018-04-10 | 中航技国际经贸发展有限公司 | A kind of e-bidding method and system |
| CN107967142A (en) * | 2017-11-27 | 2018-04-27 | 北京优易惠技术有限公司 | Update method, system towards USBKey |
| CN108319860A (en) * | 2018-02-07 | 2018-07-24 | 南通市公共资源交易中心 | A kind of long-range bid opening and bid appraisal management method, management system and management equipment |
| CN110991980A (en) * | 2019-10-25 | 2020-04-10 | 中通服咨询设计研究院有限公司 | Communication engineering management bidding device and use method thereof |
| CN111277651A (en) * | 2020-01-20 | 2020-06-12 | 国网江苏招标有限公司 | Remote bidding method and system |
| CN111754207A (en) * | 2020-06-30 | 2020-10-09 | 深圳壹账通智能科技有限公司 | Process instance management method and device, computer equipment and readable storage medium |
| CN112016111A (en) * | 2020-09-08 | 2020-12-01 | 杭州天谷信息科技有限公司 | Credible bidding encryption and decryption method supporting centralized decryption |
| CN112613956A (en) * | 2020-12-31 | 2021-04-06 | 中国工商银行股份有限公司 | Bidding processing method and device |
| CN113536347A (en) * | 2021-07-22 | 2021-10-22 | 四川神琥科技有限公司 | Bidding method and system based on digital signature |
| CN114553488A (en) * | 2022-01-24 | 2022-05-27 | 四川华西集采电子商务有限公司 | Square encryption bidding method and system |
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| CN103795523B (en) * | 2014-01-14 | 2017-01-04 | 福州市勘测院 | Electric bidding document multilamellar encrypting and deciphering system and method for e-bidding |
| CN103795523A (en) * | 2014-01-14 | 2014-05-14 | 福州市勘测院 | Multilayer electronic tender encryption and decryption system and method for electronic tendering |
| CN106933838A (en) * | 2015-12-29 | 2017-07-07 | 北京广联达正源兴邦科技有限公司 | Tender Evaluation Method and bid evaluation system |
| CN105678599A (en) * | 2015-12-30 | 2016-06-15 | 福建随行软件有限公司 | ttTarget guarantee fund management method |
| CN106789927A (en) * | 2016-11-28 | 2017-05-31 | 华迪计算机集团有限公司 | A kind of on-line bid method and system |
| CN107256481A (en) * | 2017-06-09 | 2017-10-17 | 深圳市斯维尔科技股份有限公司 | Receive Withdrawing method, device, terminal and computer-readable recording medium |
| CN107392570A (en) * | 2017-07-22 | 2017-11-24 | 江苏省鸿源招标代理股份有限公司 | A kind of whole process e-bidding bid bid evaluation system and its tender Evaluation Method of inviting and submitting bids |
| CN107895226A (en) * | 2017-11-01 | 2018-04-10 | 中航技国际经贸发展有限公司 | A kind of e-bidding method and system |
| CN107967142B (en) * | 2017-11-27 | 2020-12-08 | 北京优易惠技术有限公司 | USBKey-oriented updating method and system |
| CN107967142A (en) * | 2017-11-27 | 2018-04-27 | 北京优易惠技术有限公司 | Update method, system towards USBKey |
| CN108319860A (en) * | 2018-02-07 | 2018-07-24 | 南通市公共资源交易中心 | A kind of long-range bid opening and bid appraisal management method, management system and management equipment |
| CN110991980A (en) * | 2019-10-25 | 2020-04-10 | 中通服咨询设计研究院有限公司 | Communication engineering management bidding device and use method thereof |
| CN111277651A (en) * | 2020-01-20 | 2020-06-12 | 国网江苏招标有限公司 | Remote bidding method and system |
| CN111277651B (en) * | 2020-01-20 | 2024-04-09 | 国网江苏招标有限公司 | Remote bidding method and system |
| CN111754207A (en) * | 2020-06-30 | 2020-10-09 | 深圳壹账通智能科技有限公司 | Process instance management method and device, computer equipment and readable storage medium |
| CN112016111A (en) * | 2020-09-08 | 2020-12-01 | 杭州天谷信息科技有限公司 | Credible bidding encryption and decryption method supporting centralized decryption |
| CN112016111B (en) * | 2020-09-08 | 2024-04-09 | 杭州天谷信息科技有限公司 | Trusted bidding encryption and decryption method supporting centralized decryption |
| CN112613956A (en) * | 2020-12-31 | 2021-04-06 | 中国工商银行股份有限公司 | Bidding processing method and device |
| CN112613956B (en) * | 2020-12-31 | 2024-02-02 | 中国工商银行股份有限公司 | Bidding processing method and device |
| CN113536347A (en) * | 2021-07-22 | 2021-10-22 | 四川神琥科技有限公司 | Bidding method and system based on digital signature |
| CN114553488A (en) * | 2022-01-24 | 2022-05-27 | 四川华西集采电子商务有限公司 | Square encryption bidding method and system |
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Application publication date: 20120912 |