Providing Security by Encryption and Splitting Technique over Cloud Storage

Cloud computing is known to be a secured technology. It has various applications. Cloud computing is providing its security services and storage services at a very low cost. Privacy and authentication are required at a high degree. There are various approaches to deal with these security issues. Cloud is secure enough from all external theft. Cloud computing provides three kinds of services: IaaS (Infrastructure as a Service), PaaS (Platform as a Service) and SaaS (Software as a Service). For data protection in cloud server, cryptography is one of the important methods. Cryptography provides various types of symmetric and asymmetric algorithms to secure the data. Here we use two mechanisms in this paper- data encryption and file splitting. When a user uploads a file it is encrypted using AES encryption algorithm. Then encrypted file is divided into equal parts according to the number of clouds and stored on the cloud. This proposed system enhances the data security on cloud.