Rivest Cipher 4 Cryptography and Elliptical Curve Cryptography Techniques to Secure Data in Cloud

Data security is the major issue in the field of research and in the field of cloud computing; it is a major concern as data are located across the globe in the cloud. As cloud computing technology is used by government, businesses, and industries, many studies have been investigated recently to achieve authentication and the confidentiality of data while they are stored in the cloud. Cryptography plays an important role in achieving data security. The paper proposes a hybrid model that uses the symmetric RC4 algorithm to encrypt the data and the key performance encryption is secured by the ECC algorithm which is a public key algorithm. The proposed method provides high security by encrypting the session key and also needs less time for encrypting and decrypting the data than the existing model. The proposed hybrid model provides data confidentiality and also secures the session key used for encryption and decryption.