Security in Cloud Computing using Hybrid of Algorithms

Abstract-Cloud is a metaphor for network that provides its services such as dynamic resource pools, high availability and virtualization using Internet know as Cloud Computing. Cloud Computing provides resources to the users over internet as per their demand. Service on demand is an important feature of cloud computing as it enables the user to pay for the required resources only. There are many Cloud Service Providers (CSP) such as Google, Microsoft, IBM, Oracle Corporation, Amazon Web Services, etc. which provide cloud services to users. Since cloud computing involves sending data over internet, security breach needs to be monitored and controlled. So, this paper introduces a new hybrid algorithm which is blend of two cryptographic algorithms: public key cryptography and secret key cryptography. This new algorithm is hybrid of RSA as Digital Signature and Blowfish Algorithm and will provide security to the data while being uploaded or downloaded from cloud