Access control by common key cryptography using KPS

Abstract

Today, as network develops, illegal access to personal data or secret data becomes serious problem. To solve this, access control is used. But is relies extensively on the security of the system manager. In order to increase safety, we should decrease the relied part to the manager and encrypt data. In this report, we think about access control by encrypting data. Especially, we think about the system changing by every S and O using KPS.