CN1858793A - Electronic contract managing system operation platform - Google Patents
Electronic contract managing system operation platform Download PDFInfo
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- CN1858793A CN1858793A CNA2006100268330A CN200610026833A CN1858793A CN 1858793 A CN1858793 A CN 1858793A CN A2006100268330 A CNA2006100268330 A CN A2006100268330A CN 200610026833 A CN200610026833 A CN 200610026833A CN 1858793 A CN1858793 A CN 1858793A
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Abstract
An operational platform for electronic contract management system includes a customer end and a server end mutually connected in network, in which, the server end includes: an electronic print center module, a contract template management center module and a user management center module mutually connected with the electronic contract management center module as the center, the customer end includes: a system manager module, an electronic contract manager module and an electronic contract user module mutually connected, the operation platform is completely based on the convenient and transparent network electronic contract solving plan, the electronic stamp is ciphered and integrated with intelligent key plates, the contract template is made dynamically by the template designer sawn and got according to the requirement of the user, the integrated cipher and digital waterprint cipher of the print of the enterprise, the personal print and handwriting signature guarantees the print un-fabricated.
Description
Technical Field
The invention relates to an operation platform, in particular to an operation platform of an electronic contract management system.
Background
With the rapid development of electronic commerce, the signing and management of traditional paper contracts increasingly affect the progress of commerce, and people begin to use electronic documents, electronic files and electronic data in a large amount to replace paper files and data exchange, which is a necessary development trend. However, the security problem is increasingly prominent, and how to solve the problem of signing and stamping electronic documents, and how to ensure the authenticity, integrity, reliability and non-repudiation of various electronic documents becomes a bottleneck restricting the overall use of electronic documents.
Electronic signature laws are established in many countries, and the implementation of the electronic signature law of the people's republic of China draws the preface of the application of the electronic contract of China. The application of the electronic contract is the first stage of expanding the application field of the digital paper, and the electronic contract enables the digital paper technology to preliminarily show the strong influence of the digital paper technology in the information field.
Electronic signatures are not digital images of written signatures. It is in fact an electronic code with which the recipient can easily verify the identity and signature of the sender over the network. It realizes the confidentiality of information transmission, the integrity of data exchange, the non-repudiation of transmitted information and the certainty of trader identity.
At present, electronic signatures can be realized by various technical means, but the electronic signature technology is mature, convenient to use and operable, and is commonly used in advanced countries and china in the world, and is also a digital signature technology based on PKI (Public Key Infrastructure).
A PKI (public key infrastructure) -based electronic signature is called a "digital signature". Somebody says that "electronic signature" is "digital signature" is wrong. Digital signatures are just one particular form of electronic signatures. Although the electronic signature is technically neutral, it is also inconvenient to use, and the electronic signature is further legally specified, such as "reliable electronic signature" and "advanced electronic signature" as specified in "electronic signature demonstration law" of the united nations' trade association and "electronic signature common framework directive" of the european union. In fact, the function of the digital signature is specified, and the digital signature obtains better application safety and operability. At present, the electronic signature with practical significance only has the public key cryptography theory. Therefore, the digital signature technology which is generally used at home and abroad, mature in technology and practical in use is PKI-based. PKI, as a public key infrastructure, can provide a variety of security services over the internet, such as authentication, data confidentiality, data integrity, and non-repudiation. In which digital signature techniques are used.
The core enforcement agency of PKI is the electronic certification service provider, referred to collectively as the certification authority CA (certificate authority), and the core factor of PKI signing is a digital certificate issued by the CA. The PKI services it provides are authentication, data integrity, data confidentiality and non-repudiation. The method is to utilize a public key of the certificate and a corresponding private key to carry out encryption/decryption, generate a signature of a digital message and verify the signature. The digital signature is an electronic password formed by a series of symbols and codes generated by using a public key cryptography and other cryptographic algorithms to carry out signature so as to replace writing signature and seal; such electronic signatures can also be technically verified to an accuracy that is not comparable to the verification of manual signatures and stamps. The signature method can be used for authenticating in a large group of trusted PKI domains or performing cross authentication in a plurality of trusted PKI domains, and is particularly suitable for security authentication and transmission on the Internet and a wide area network.
The technology of Internet (Internet) e-commerce system makes it extremely convenient and easy for customers who shop online to obtain information about merchants and businesses, but also increases the risk of abusing some sensitive or valuable data. The buyer and seller must be true and reliable for all financial transactions conducted over the Internet, and in order for all parties to the transactions, such as customers, merchants, and enterprises, to have absolute confidence, the Internet (Internet) e-commerce system must ensure a very reliable security technology, that is, the four major elements of network security, namely, confidentiality of information transmission, integrity of data exchange, non-repudiation of transmitted information, and certainty of the identity of the transactor.
The business information in the transaction has the requirement of confidentiality. For example, the account number and user name of a credit card are known and may be stolen, and the information of ordering and payment is known by competitors and the business opportunity may be lost. There is therefore a general requirement for encryption in the propagation of information in the course of electronic transactions.
Both parties to an online transaction are likely to be equivocal, separated by thousands of miles. To ensure that the transaction is successful, the identity of the other party must be confirmed first, which is a consideration for the merchant that the client cannot be a fraudster, and the customer is also concerned that the store on the network is a fraudulently-played back store. Therefore, the condition that the identity of the other party can be conveniently and reliably confirmed is the precondition of transaction. For banks, credit card companies and sales shops that perform services for customers or users, authentication is required to perform secure, confidential and reliable service activities. The merchant is not aware of the credit card number used by the customer, and the merchant can only complete the credit card confirmation by handing it over to the bank. Banks and credit card companies can use various security and identification methods to verify the identity of a customer while preventing the problem of a declined payment and confirming order and order receipt information.
Due to the ever-changing business conditions, transactions cannot be repudiated once they are reached. Which would inevitably harm one's interest. For example, if the order owner refuses to receive the order, the money price will be increased, and the fact that the order owner refuses to receive the order, or even refuses to receive the order, the order owner will suffer loss. And thus, various parts of the electronic transaction communication process must be undeniable.
The file of the transaction is not modifiable, as in the example above-order gold. After receiving the order, the supplier finds that the price of the money is greatly increased, and if the supplier can change the file content and change the order number of 1 ton to 1 gram, the supplier can greatly benefit, and the supplier can suffer from the loss. Therefore, the electronic transaction file also needs to be unchangeable so as to ensure the seriousness and justice of the transaction.
Disclosure of Invention
The invention aims to establish an operation platform of an electronic contract management system according to the law of the electronic signature law of the people's republic of China, the provided electronic contract has the same legal efficacy as the traditional paper contract, not only has the appearance effect of the paper contract completely, but also has high information safety, undeniability and non-tamper property, and an electronic seal covered on the electronic contract has non-strippability. The electronic contract can be printed, filed and retrieved as it is, and useful data can be extracted to directly interact with the relational database, thereby providing a complete, safe and efficient platform of the electronic contract management system for enterprises.
In order to achieve the purpose, the invention adopts the following technical measures: an operation platform of an electronic contract management system is provided, which comprises: a client and a server coupled via a network (including the internet and a wide area network), wherein the server comprises: the electronic seal management center module, the contract template management center module and the user management center module are connected with each other by taking the electronic contract management center module as a core;
the electronic contract management center module is used for managing contracts and comprises the steps of accepting a contract invitation made by a user, selecting a contract template, making a new contract, filling in contract content, confirming the contract, signing the contract, verifying the signature and the effectiveness of the contract, browsing and checking the contract, making a contract operation log, and controlling the encrypted storage of the contract and the printing and printing times of the contract;
the electronic seal management center module is used for managing the seals in the contract made by the electronic contract management center module, and comprises the steps of receiving seal application and making, encrypting and storing the seals, updating and reporting the loss of the seals, resetting the seal passwords, using the seals, inquiring the contract seal logs, integrating the enterprise seals and the enterprise electronic certificates and encrypting the digital watermarks of the seals;
the user management center module is used for uniformly managing the contract template selected by the electronic contract management center module and various contract templates required by clients, and comprises a contract template dynamically establishing and editing storage visualization based on XML (extensible markup language), dividing the application range and the use authority of the contract template, inquiring and counting the contract template and printing and previewing the contract template;
the user management center template is used for user application registration, user domain management and division, user identity authentication, user authority management, binding of user information and a user electronic seal and determining user identity by a double-layer user identity authentication system;
the client comprises: the system comprises a system manager module, an electronic contract manager module and an electronic contract user module which are connected with each other; the electronic contract user module is used for providing real and detailed identity information of a user and a scanned picture of a physical seal; the electronic contract administrator module is used for submitting a contract style according to the requirement of a user, verifying the identity, the content and the signature time of the user and checking a certificate; the system administrator module is used for providing a system interface, image encryption compression, digital watermark encryption and providing an electronic certificate of a user enterprise.
The operation platform of the invention has the remarkable characteristics that:
1. with the structure, the technology of an ActiveX (control technology embedded on a network site based on a built object model) component is adopted in the operation platform, the idea of the component develops the emphasis from modeling to the consideration of software production, namely, the component can be reused as a part in a new system in the software production in the application field. After abstraction, a complex system is presented to the application in a uniform layer form after being abstracted and necessarily isolated. The application can better concentrate on business logic in the environment provided by the digital signature, and exists in a componentized form, and finally realizes good cooperative work in heterogeneous environment naturally;
2. the operation platform book of the invention is a visual contract template editor based on XML, and a visual contract template is dynamically made. The visual contract template editor is a set of WYSIWYG (what you see is what you get) template designers. The method is mainly used for designing forms, drawing and generating XML (extensible markup language) format contents. It is characterized in that:
● has strong affinity, flexibility, intuition and easy use;
● simple operations such as click selection and dragging movement are adopted;
● providing ready-to-use templates, or self-contained templates, which are what you see is what you get;
● the designed XML Form can be directly converted into a Web Form (XML Web Form) and directly deployed in a Web application system; .
● support XML data format, fully complying with the XML signature specification of W3C;
● support any custom XML Schema;
● can manage items and templates.
3. The contract template in the operation platform of the invention is selected and managed according to the requirements of the client. That is, the contract templates are divided in an enterprise-related manner management mode, which is easy to manage, so that the filing of the similar templates is convenient for the division of the authority.
4. On the operation platform, the stamping position of the contract seal is adjustable and dragged, and a user can drag the contract seal at will to adjust the position of the seal, thereby realizing a more convenient signing process. However, once the signature is determined, the seal is locked and cannot move. The data generated by the digital signature of the electronic contract data by the electronic seal, the content of the electronic seal and the electronic contract data are uniformly mixed, encrypted and stored, and a contract user can check the electronic contract data only after decrypting the electronic contract data by the electronic seal, so that the electronic seal and the electronic contract data cannot be stripped.
5. The operation platform of the invention transparently processes the contract seal to ensure that the seal is more vivid, the signature of a user on an electronic contract is transparent as the traditional seal, the seal is transparent through a transparent processing algorithm of seal graphic data due to the laminating effect, and the seal is displayed on the upper layer of the contract text based on the standard ActiveX (based on a built object model for supporting the control technology embedded on a network site) component technology.
6. The operation platform of the invention is used for encrypting and binding the electronic seal and the enterprise digital certificate, the independent seal scanning picture has no legal effect, and the electronic seal can carry out digital signature on data only after binding the digital certificate and the electronic seal, and can carry out identity recognition.
7. The encryption and authentication of the digital certificate on the operation platform of the invention ensures the security of the user in the network communication by establishing an SSL (secure socket layer) security channel between the client browser and the platform server. Because the method is bound with the IP address and the domain name of the website, the authenticity of the website can be ensured and the website cannot be counterfeited by people.
8. The operation platform of the invention encrypts and limits the digital certificate of the electronic contract viewing authority, encrypts and transmits the electronic contract content by adopting the mixed encryption technology based on the digital certificate, only each party of the contract can view the contract content, and the transmitted content can not be cracked even if intercepted.
9. The operation platform of the invention is an electronic seal based on digital watermark anti-counterfeiting technology, the platform adopts the digital watermark technology to ensure that the seal can not be counterfeited, the electronic seal encryption based on the digital watermark is that invisible watermark information is embedded in the electronic seal, when the electronic seal containing the watermark information is printed, a laser detector with the size of a U disk can be used for detecting the embedded watermark information, a scanner can be used for scanning a seal picture into a computer, and watermark extraction software can be used for extracting the watermark information, thereby achieving the aim of seal anti-counterfeiting. The seal anti-counterfeiting technology based on the digital watermark is the most reliable mature anti-counterfeiting technology at present, and the use cost is lower.
10. The operation platform of the invention adopts the integration of enterprise seal, personal seal and handwritten signature, namely
The encryption in the electronic seal integrates an enterprise seal, a personal seal and a handwritten signature. The electronic seal is more convenient and safer.
11. The contract users of the operation platform are managed in an enterprise binding association mode, and the users are grouped and managed by taking enterprises with large contract use quantity as nodes.
12. Compared with the prior art, the operation platform of the invention comprises:
1) the operation platform realizes the encryption integration of the electronic seal and the EKEY (Intelligent Key disk), so that the client application is safer and more convenient;
2) the operation platform realizes the template self-defining function, and meets the difference requirements of different users on the content styles of the electronic contracts;
3) the operation platform of the invention is completely based on the electronic contract solution of the (Internet) network, is easy to use, deploy and manage, and has low operation cost;
4) the operation platform of the invention adopts a mode of combining automatic management and self-management through a matched interface, and is flexible and easy to use. The problems that the safety products in the existing market are complex to use and high in cost are solved in a centralized manner;
5) the operation platform of the invention adopts an intelligent key disk (namely hardware equipment: eKey) stores seal, signature and key information, and jointly controls the acquisition authority of the seal together with software; the standard third-party CA certification authority is supported, and the compatibility problem of different eKey is solved;
6) the operation platform of the invention adopts the digital watermarking technology, and ensures the non-forgeability of the seal.
Drawings
Fig. 1 is a schematic structural diagram of an operation platform of the present invention.
Fig. 2 is a schematic diagram of a specific structure of the server side.
Fig. 3 is a schematic diagram of an operation structure of the server-side electronic collaboration management center module.
Fig. 4 is a schematic diagram of a specific structure of an electronic signature of an electronic contract management center module.
Fig. 5 is a schematic diagram of a process of making an electronic seal by the electronic seal management center module.
FIG. 6 is a schematic diagram of the contract template dynamically made by the contract template management center module.
FIG. 7 is a schematic diagram of a contract template management center module specifically managing contract templates.
Fig. 8 is a schematic structural diagram of a user management center module managing users.
Fig. 9 is a flow chart of the operation platform of the present invention.
Detailed Description
The structure and features of the operation platform of the present invention will be described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1, the electronic contract management system operation platform of the present invention is based on a B/S (browser/server) architecture, and includes: a client terminal 1 and a server terminal 2 connected to each other via a network 3 (including the internet, a wide area network, etc.).
Wherein the server end 2 includes: an electronic seal management center module 202, a contract template management center module 203 and a user management center module 204 which are mutually connected and take an electronic contract management center module 201 as a core;
the client 1 includes: a system administrator module 102, an electronic contract administrator module 101, and an electronic contract user module 103, which are coupled to each other.
Fig. 2 is a schematic diagram of a specific structure of the server 2. As shown in fig. 2, the server 2 includes: an electronic contract management center module 201, an electronic seal management center module 202, a contract template management center module 203 and a user management center template 204 which are connected with each other. Wherein,
the electronic contract management center module 201 includes: the system comprises a contract receiving sub-module 2011, a contract template sub-module 2012 is selected, a contract drafting sub-module 2013, a contract content filling sub-module 2014, a contract confirmation sub-module 2015, a contract signing sub-module 2016, a contract verification encryption sub-module 2017, a contract database sub-module 2018, a contract browsing and viewing sub-module 2019 and a contract operation log making and printing sub-module 20110 which are sequentially connected.
The electronic seal management center module 202 includes: a sub-module 2021 for receiving contract seal application and making contract, a seal encryption storage sub-module 2022, a seal update and loss report sub-module 2023, a seal password resetting sub-module 2024, a seal using sub-module 2025 and a making seal log query sub-module 2026 which are connected in sequence.
The contract template management center module 203 includes: a contract template creating sub-module 2031, a contract usage right assignment sub-module 2032, a statistical storage retrieval sub-module 2033 and a contract template printing sub-module 2034, which are connected in sequence.
The customer management center module 204 includes: a management user registration sub-module 2041, a contract user identity authentication sub-module 2042, an authority verification sub-module 2043, a user domain management sub-module 2044 and a user domain stamp integration management sub-module 2045 which are connected in sequence.
As shown in fig. 2, the electronic contract management center module 201 is mainly used for drafting an electronic contract, filling in contract content, and obtaining an electronic contract confirmation of user identity and authority authentication from the user management center module 204; selecting a contract template to be used from the contract template management center module 203; acquiring an electronic seal used by a user from the electronic seal management center module 202 to finish electronic contract signing; then, completing browsing, viewing, verifying, encrypting and storing the electronic contract;
the electronic seal management center module 202 is mainly used for applying, making, encrypting and storing a seal, updating the seal, reporting the loss of the seal and resetting a seal password to provide the use, making operation log and inquiry of the seal of the electronic contract management center module 201;
the contract template management center module 203 is mainly used for completing dynamic creation of template visualization according to the requirements of the electronic contract management center module 201 and users; completing the application range division of the template; integrating with a corresponding seal in the electronic seal management center module 202, and completing the distribution of the use permission according to the verification of the user identity and the permission of the user management center module 204; completing the statistics of the contract template, establishing a database of the contract template, and providing the retrieval and printing of the contract template;
the user management center module 204 is mainly used for completing user registration and user group management; the authentication of the user identity and the authority of the contract signed by the electronic contract management center module 201 is completed; the authority verification and management of the electronic contract are completed; and finishing the management of the user domain and the integration of the user and the seal.
Fig. 3 is a schematic diagram of an operation structure of the server-side 2 electronic contract management center module 201. The structure of the electronic contract management center module 201 shown in fig. 2 includes, in the operation structure shown in fig. 3:
01) contract invitation: the contract invitation receiving submodule 2011 receives the invitation of contract between the two parties of the contract A and the contract B, because the contract users firstly mutually invite and accept the invitation before signing the contract, the users can only sign the contract between the two parties of the invitation;
02) contract template selection, drafting, content filling and storage: after the contract invitation is completed, starting to draft a contract, firstly selecting a contract template, then selecting the other party of the contract, and filling the contract contents into the two parties; the contract template selecting sub-module 2012 selects a contract template from the contract template database in the contract template management center module 203 according to the requirement of the contract party B (or the contract party A); the contract drafting submodule 2013 and the contract content filling submodule 2014 draft and fill contract contents according to the wishes of the second party and the first party, and store the contents in the electronic contract database submodule 2018;
03) contract confirmation and encryption: the contract confirmation submodule 2015 takes the filled contract out of the electronic contract database submodule 2018 to confirm the contract between the first party and the second party, and the contract confirmed by the two parties is verified and encrypted by the contract verification encryption submodule 2017;
04) contract signing: the electronic contract after verification and encryption is signed by the seals of both parties of contract a and contract b (the signature is returned to the contract signature database after use) from the contract signature database in the electronic seal management center module 202 by the contract signature sub-module 2016, the electronic contract signed by both parties a and contract b is an effective electronic contract, and the encrypted effective electronic contract is stored in the electronic contract database module:
05) contract checking, verifying and printing: the contract browsing view sub-module 2019 views and verifies the validated electronic contract for the first party and the second party of the contract, and then the contract printing and making operation log sub-module 20110 prints and makes an operation log. The contract browsing and viewing submodule 2019 is provided for a common user to use, and when a signed contract needs to be viewed and verified, the software needs to be installed to verify whether the contract is modified and verify the identity of a signer; the electronic contract is capable of reviewing information about the signer's certificate, including certificate version, certificate serial number, signature algorithm, issuer details, validity start date, validity end date, user details, DER (distinctive Encoding Rules recognizable key value), and certificate customization level. The system can provide the user with information related to quick inquiry and statistical contract.
FIG. 4 is a schematic diagram of a specific structure of an electronic signature of an electronic contract management center module; specifically, fig. 4 is a schematic diagram of the specific structure of the electronic signature of the contract signature sub-module 2016 in fig. 2 and 3.
As shown in fig. 4, the electronic signature of a contract includes three necessary parts: 001) a protected contract; 002) signature software; 003) electronic seal key dish. Wherein,
001) the protected contracts include: valid data (including all text, fonts, colors, graphics and the like) and additional verification data (encrypted hidden feature information) of the electronic contract;
002) signature software: in this embodiment, the signature software is a software commonly used in electronic signatures, and includes: a HASH (Hash) encryption technology module, a digital signature and identity authentication system module and a confusion encryption technology module;
003) the electronic seal key dish includes: the electronic seal system comprises an Ekey authentication system module and an electronic seal database module. As shown in FIG. 4, the basic process of electronic signature is that the signature software 002 passes through the key disk from the electronic seal
003, the electronic seal extracted from the electronic seal database module authenticated by the Ekey authentication system digitally signs the electronic contract, and the electronic contract is subjected to confusion encryption and then stored in the electronic contract database module.
In this embodiment, the specific electronic seal signing process is as follows: the seal key disc is provided with a seal through initialization, and the seal key disc can write information such as a seal user, a use password and the like into the seal key disc through seal making software and can be distributed to an end user for use. The software must be strictly managed and backed up in time after the seal is made each time; when signing, the seal or signature must be scanned as is, for example, with a resolution of 300dpi, then in a photoshop (digital image processor) a color selection tool is used to select red, then the selected part is copied, a window is created, the window is pasted into a new window, the image is converted into a resolution of 96dpi and stored as gif (graphic interchange format) type, the number of colors is between 4 and 8, and a picture in pure white format is produced except the seal or signature information.
An eKey (intelligent password key) is a physical carrier of an electronic seal, and the legal effectiveness of the eKey is equivalent to that of a physical seal of an enterprise.
As shown in fig. 4, the electronic signature of the present invention uses a public key system, that is, a pair of matched keys is used to encrypt and decrypt the electronic signature. It is computationally impossible to deduce one set of keys from another. According to the current computer technology level, thousands of years of calculation time is needed to crack the currently adopted 1024-bit RSA key (also adopted by the invention). The user adopts the private key of the user to process the information, and the secret key is owned by the user, so that a file which cannot be generated by others is generated, and an electronic signature is formed. With the electronic signature, the following two points can be confirmed:
(1) the information is ensured to be signed and sent by a signer, and the signer cannot deny or is difficult to deny;
(2) the information is ensured to be not modified any more since being issued, and the issued file is a real file.
The electronic contract management system of the invention uses the binding of electronic signature and electronic seal of the secure hash algorithm (SHA-1), DES encryption algorithm and PKI framework (Public Key Interface), the personal private Key is stored in a USB encryption Key EKEY (Intelligent cipher Key) integrating an intelligent card and a reader-writer in a USB Interface, the Key passes the authentication of China national cipher administration Committee and China Public Security department and is the standard of China Shanghai CA authentication center.
The encryption technical points of the invention are as follows:
1. the invention follows the standard of electronic signature of the electronic signature law of the people's republic of China, and accords with the national security standard of China;
2. adopting PKI: (Public Key Infrastructure) PKI is a universal security Infrastructure that implements and provides security services using Public Key theory and techniques;
3. adopting a digital certificate of an authoritative third-party CA certification authority to meet the requirements of the related laws of the electronic seal;
4. the digital certificate and the electronic seal or the handwritten signature information are bound (confusion encryption technology) to ensure the signature information source to be reliable;
5. a standard HASH Algorithm (HASH) is adopted to generate a digital abstract of the file content, so that the electronic signature and the signed file are ensured to be tightly bound; encrypting the electronic signature entity Data by adopting a Standard RSA and DES (Data Encryption Standard) algorithm;
6. an intelligent key disc (namely hardware equipment such as Minghua eKey) is adopted to store the seal, the signature and the key information, and the intelligent key disc and the software jointly control the acquisition authority of the seal; support standard third party CA certification authorities;
7. the system supports the signature log, namely the system stores the information of each signature of the user in a unified log file so as to be convenient for query;
8. the system supports the signature log, namely the system stores the information of each signature of the user in a unified log file so as to be convenient for query;
9. the platform of the invention is completely compatible with the international standard (x509, PKCS) certificate format, and can be directly merged into the PKI (public Key infrastructure) system of the national and international organizations;
10. a verification mechanism with signature and content integrity and non-tamper-proofness;
11. through a matched interface, all tools adopt a mode of combining automatic management and self-management, and are flexible and easy to use. The problems that the safety product in the existing market is complex to use and high in cost are solved in a centralized manner.
12. Easy use, easy deployment, easy management and low operation cost
As mentioned above, the platform of the invention adopts a standard ActiveX (based on a built object model, which is used for supporting control technology embedded on a network site) client-side electronic signature component, and the idea of the component develops the emphasis from modeling to the consideration of software production, namely, the component can be reused as a part in a new system in the software production in the application field. After abstraction, a complex system is presented to the application in a uniform layer form after being abstracted and necessarily isolated. The application can better focus on business logic in the environment provided by the digital signature, exists in a componentized form, and finally realizes good cooperative work in heterogeneous environments naturally.
FIG. 5 shows a specific process for making an electronic seal, and as shown in FIG. 5, the electronic contract user module 103 disposed in the client 1 includes a sub-module for providing real detailed identity information of a user and a sub-module for scanning pictures of a physical seal; the system administrator module 102 disposed in the client 1 includes a graphic encryption compression and digital watermark encryption sub-module, and provides a user enterprise electronic certificate sub-module and a system interface (shown in fig. 6); the specific process is that real detailed identity information and a physical seal scanning picture provided by the electronic contract user module 103 of the client 1 are submitted to the system administrator module 102 (shown in fig. 1); the system administrator module 102 encrypts and compresses the graphics and encrypts the digital watermark, and submits the graphics and the digital watermark to the electronic seal management center module 202 together with the enterprise electronic certificate of the user; the electronic seal management center module 202 creates an electronic signature and stores the electronic signature in a key disk. As described above, the invention uses the image processing technology to process the complex images of the signature pattern and the electronic document background, so that the signature pattern can float on the background, and the same visual effect as the signature and seal of the paper document is achieved. Complex image compression and decompression technology is adopted to save storage space; and the digital watermarking technology is adopted to ensure that the seal can not be forged. The digital watermarking technology is the popular digital anti-counterfeiting technology at present. The electronic seal system based on the digital watermark is characterized in that invisible watermark information is embedded in the electronic seal, when the electronic seal containing the watermark information is printed, the embedded watermark information can be detected by a laser detector with the size of a U disk, a seal picture can be scanned into a computer by a scanner, and the watermark information can be extracted by watermark extraction software, so that the anti-counterfeiting purpose of the seal is achieved. The seal anti-counterfeiting technology based on the digital watermark is the most reliable mature anti-counterfeiting technology at present, and is low in use cost.
FIG. 6 is a schematic diagram of the contract template dynamically made by the contract template management center module. In order to accommodate different electronic contract templates required by different users, the contract template management center module 203 dynamically designs and provides contract templates for various functions visually. The system administrator module 102 (shown in fig. 1) can conveniently retrieve a variety of contract templates using the interface provided by the system according to the needs of the user.
As shown in fig. 6, the electronic contract administrator module 101 (shown in fig. 1) of the client 1 submits a contract style to the system administrator module 102 according to the requirement of the electronic contract user module 103, the system administrator module 102 submits the contract style to the contract template management center module 203 through the system interface of the contract template making tool, and the contract template management center module 203 makes a visual contract template according to the contract style submitted by the system administrator module 102 and based on the technology of the visual contract template editor of XML and stores the visual contract template into the contract template database module. The requirements of different users on different styles are met.
FIG. 7 is a diagram of the contract template management center module 203 managing contract templates specifically; as shown in fig. 7, the contract template management center module 203 manages contract templates organized in units of enterprises, and usage rights of templates vary among enterprises. The contract templates are uniformly stored and are respectively managed by each enterprise, and the enterprises only have the authority to manage the templates. A contract user associated with a business can use the contract template for the business. As shown in FIG. 7, the contract template of a certain A enterprise is used by the user establishing the contract relationship with the certain A enterprise; the contract template of a certain B enterprise is used by the user establishing the contract relation with the certain B enterprise; the users that have established contractual relationships with an … business use a contractual template for an … business.
Fig. 8 is a schematic structural diagram of the user management center module 204 for managing users. The user management center module 204 manages users by grouping the enterprises with large contract use number as nodes. As shown in FIG. 8, UserA 1 is a group with UserA 2, and is a "user establishing a contractual relationship with a certain A business"; user B1 is a group with user B2, and is a user who establishes a contract relation with a certain B enterprise; user … is a group with user …, being "a user who has established a contractual relationship with a certain … business". Such packet management is both convenient and reliable.
Fig. 9 is a flow chart of the operation platform of the present invention. In this embodiment, the operation environment of the operation platform is: the hardware at the server side is as follows: the dominant frequency is above intel P41.6GMHz, the memory is 512MB, the hard disk is above 40G, and the operating systems are Windows NT and Windows 2000/2003; the software used was Microsoft SQL 2000, Tomcat 5.0 Apache 3.1.
The main frequency of hardware at the client is more than 800MHz, the memory is more than 128MB, and the color configuration of the display card needs to be set to be 24-bit enhanced color or 32-bit true color; the operating system supports Windows 98, Windows ME, Windows NT, Windows 2000/2003 and Windows XP; the software that needs to be installed includes versions above Microsoft IE 5.0.
The specific operation flow of the electronic contract management system on the operation platform of the present invention is shown in fig. 9:
<0001> login authentication of the electronic contract user: and the user of the electronic contract inputs a user name and a password, inserts an electronic seal Ekey and logs in the system. If the password of the user name is wrong, the illegal electronic seal can not pass the login authentication of the user. Authentication failure will not log into the system;
<0002> electronic contract invitation: before signing a contract, electronic contract users need to mutually invite and accept the invitation, and the users can only sign the contract between two inviting parties. If the two parties do not accept the invitation, the contract process cannot be continued;
<0003> contract template selection: after the contract-making invitation is completed, the user starts to draft a contract and first selects a contract template. The user can select a template with the use authority to draft a contract;
<0004> establishing parties to the contract: after the contract template is selected, the drafter selects the roles of the parties establishing the contract in the contract; and (3) contract content filling: after each party of the contract is established, each party fills the contract content;
<0005> contract confirmation: after the completion of the contract filling, all parties of the contract confirm the contract, the drafted contract is completed after each party of the contract confirms, the drafted contract is locked, and the confirmed contract can be signed. If all parties of the contract find that the contract is wrong, the contract can be denied, and the denied contract will be invalidated.
<0006> contract signature: the contract signing is a very critical step of the electronic contract, both parties of the contract use the own electronic seal to sign the contract, the contract becomes effective after the signing of both parties is finished, and the contract signing has the legal effectiveness completely equal to that of the traditional signature signing and sealing contract. The signature may be rejected until it is not completed in the signature process. The contract for which the signature is denied will be voided.
Claims (6)
1. An electronic contract management system operation platform comprises a client and a server which are connected with each other through a network, and is characterized in that the server comprises: the electronic seal management center module, the contract template management center module and the user management center module are connected with each other by taking the electronic contract management center module as a core; the electronic contract management center module is used for managing contracts and comprises the steps of accepting a contract invitation made by a user, selecting a contract template, making a new contract, filling in contract content, confirming the contract, signing the contract, verifying the signature and the effectiveness of the contract, browsing and checking the contract, making a contract operation log, and controlling the encrypted storage of the contract and the printing and printing times of the contract;
the electronic seal management center module is used for managing seals of electronic contracts and comprises a seal receiving module, a seal making module, an electronic seal management center module, a seal management module and a seal management module, wherein the seal receiving module is used for receiving seal application, making, encrypting and storing contract seals, updating and reporting loss of the seals, resetting the passwords of the seals, using the seals, inquiring logs of the contract seals, integrating and using enterprise seals and enterprise electronic certificates and encrypting digital watermarks of the seals;
the contract template management center module is used for uniformly managing the contract template selected by the electronic contract management center module and various contract templates required by clients, and comprises the steps of dynamically creating and editing a visualized contract template based on an extensible markup language, dividing the application range and the use permission of the contract template, inquiring and counting the contract template, and printing and previewing the contract template;
the user management center template is used for user application registration, user domain management and division, user identity authentication, user authority management, binding of user information and a user electronic seal and determining user identity by a double-layer user identity authentication system;
the client comprises: the system comprises a system manager module, an electronic contract manager module and an electronic contract user module which are connected with each other; the electronic contract user module is used for providing real and detailed identity information of a user and a scanned picture of a physical seal; the electronic contract administrator module is used for submitting a contract style according to the requirement of a user, verifying the identity, the content and the signature time of the user and checking a certificate; the system administrator module is used for providing a system interface, image encryption compression, digital watermark encryption and providing an electronic certificate of a user enterprise.
2. The electronic contract management system operation platform according to claim 1, wherein the electronic contract management center module comprises: the system comprises a contract invitation receiving sub-module, a contract template selecting sub-module, a contract drafting sub-module, a contract content filling sub-module, a contract confirming sub-module, a contract signing sub-module, a contract verification encryption sub-module, a contract database sub-module, a contract browsing and viewing sub-module, a contract operation log formulating and printing sub-module which are sequentially connected.
3. The electronic contract management system operation platform according to claim 1, wherein the electronic seal management center module comprises: the system comprises a contract seal application receiving and making submodule, a seal encryption storage submodule, a seal update loss reporting submodule, a seal password resetting submodule, a seal using submodule and a contract making log inquiring submodule which are sequentially connected.
4. The electronic contract management system operation platform of claim 1, wherein the contract template management center module comprises: the system comprises a contract template creating submodule, a contract template use authority distributing submodule, a contract template statistical storage and retrieval submodule and a contract template printing submodule which are connected in sequence.
5. The electronic contract management system operation platform according to claim 1, wherein the customer management center module includes: the system comprises a management user registration submodule, a contract user identity authentication submodule, an authority verification submodule, a user domain management submodule and a user domain seal integrated management submodule which are connected in sequence.
6. The electronic contract management system operation platform according to claim 1, wherein the system administrator module disposed at the client comprises: the image encryption compression and digital watermark encryption sub-module provides a user enterprise electronic certificate sub-module and a system interface.
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| CNA2006100268330A CN1858793A (en) | 2006-05-24 | 2006-05-24 | Electronic contract managing system operation platform |
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| CNA2006100268330A CN1858793A (en) | 2006-05-24 | 2006-05-24 | Electronic contract managing system operation platform |
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| CNA2006100268330A Pending CN1858793A (en) | 2006-05-24 | 2006-05-24 | Electronic contract managing system operation platform |
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| CN110378588B (en) * | 2019-07-10 | 2023-02-03 | 重庆大学 | Contract spatialization system |
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| CN110474778B (en) * | 2019-08-09 | 2022-04-15 | 北京智汇信元科技有限公司 | Electronic contract signing method and system |
| CN110838002A (en) * | 2019-10-23 | 2020-02-25 | 杭州安存网络科技有限公司 | Method for processing multi-main-body electronic contract information |
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