Build your own PKI with OpenCA

With the explosive growth of Internet, increasingly importance has been attached to the security problem of Internet. As we all know, PKI(Public Key Infrastructure) is a mature and consummate formula for settling the security problem of Internet at present, but it*s very complicated to put into practice, and the commercial software which performs PKI is expensive, those retard the progress of the widespread use of PKI. In face of this actual state, this dissertation briefly introduces the open source software: OpenCA which realizes the technology of PKI. As the configuration and use of OpenCA is rather complicated, and lack of associated file, so this paper gives a detailed account of the configuration and use of OpenCA by explaining a PKI system built by author with OpenCA, and it will have some effect on improving the extension and development of PKI.