Development Of The Electronic Seal System Based On Middleware In ERP System

In the long history of our country, the seal and the signatures have been the symbol of the power. Attaching the seal or the signatures to some physical information indicates that the owner authorizes this information. Today, the electronic information technology and the network technology is developing rapidly and the physical signature and hand-written signatures on paper documents are still used. With the development of electronic commerce, electronic government and enterprise informatization, the advantage of the high efficiency and the resource-saving of OA(Office Automation) is highlighting day after day and the application of OA is also more and more widespread. How to guarantee the integrity, confidentiality of the electronic official documents, identifiability and traceability of signers has become a problem to be solved urgently. As above mentioned, the electronic seal technology is brought forward, and it has become a research focus in the information security technology and the computer application domain.Incorporating the electronic seal and the middleware technology, this paper designs and implements an electronic seal system. Taking the Public Key Infrastructure (PKI) as the security platform and the digital signature technology as the security theory base, this system meets the requirements of information security of OA. Using COM module technology, the system is made up of several modules. Each module encloses respective function and is used by other modules through the standard interface. In addition, because of the reusable and transplantable property of the COM module, when embedded into other systems, it can achieve the seamless integration and avoid remarkable modification to them. During the design and development of the software, many technical problems have been solved, including digital certificate signing and issuing, embedding, displaying and the responding to the event of a seal control in WEB pages, picture transparent display , the pick-up of the signature and the safe control.The electronic seal system presented in this paper is based on the PKI and the encoded standard of digital signature, with strong safety, practicality, accessibility, expansibility. The system will been applied to the information management system of HONGDU Aviation Industry Group LTD.