Applied Research Of Electronic Seal Technology In Production Management System Application

Basing on the researching of Digital signature, Digital watermark, PKI public-key and ActiveX technology, and the practical application of the Electronic seal in Branch Offices' Production Management System Application of Northwest Oilfield, raising a truth as that, making the asymmetric RSA public-key password algorithm as the foundation of the data encryption and data validation, when the length of the public-key is 1024 bit, it is unscramble, and then describes the generation principles of public-key and privated-key and the using management of public-key and privated-key, to approve that the Electronic seal is exclusive and uncounterfeit in the application. The Digital signature bases on the encryption algorithm to implement the signature and signature validation for the electronic data. Digital watermark is the combination of the Digital signature and iamging technology. Except the function of Digital signature, to make sure the electronic data and the paper data coherence should be implemented. The PKI public-key is a technology to use the public-key principle to provided the safe services, by managing the privated-key to keep the Digital signature's facticity. COM and ActiveX are the main technology for the application to connect with external interfaces, they are the foundation of the Electronic seal, to make sure this technology can be used in the enterprises office.