Designing encryption and IDS for cloud security

Usage of data is increasing exponentially with advancement of network and internet technologies. Cloud is becoming popular to save such enormous data along with facilities of using infrastructure, software and platform. Though cloud has many advantages but security is the biggest challenging factor in cloud. Cloud security includes the security in cloud client side, server side and when data is in transmission. Data is most vulnerable when data is in server as well as when data is in transmission medium. In this paper, two tier architecture of security system is proposed for cloud data. In the first tier, encryption is provided to secure data when the same is in medium. Encrypted data will be stored in server. In the second tier, Support Vector Machine based intrusion detection system is designed for cloud server to detect intruder.