Study And Implementation Of CA In PKI

With the development of Internet and Electronic Commerce, there is a high demand for information security. With the traditional encryption technology, the distribution of key still hasn't a perfect solution. PKI technology based on public key system resolves it through issuing the certificates by CA (Certification Authority). PKI is a transparent and seamless platform for the network system provided the service of confidentiality, integrity, authentication and non-repudiation, while CA is a necessary and important component in PKI,PKI's modules, functions and its applications are firstly described in this dissertation, with specially emphases on the issuing certificates, issuance mechanisms of revoked certificates, message format and hierarchy of CAs as well as the performance of the system. Finally, the realization of a CA server conforming to PKIX standard for secure certification is presented.