Data security and integrity in cloud computing based on RSA partial homomorphic and MD5 cryptography

With the continuous advancement in technical field many technologies are evolving day by day, cloud computing is one of them. With the help of cloud computing user can easily share, store and retrieve their data from anywhere. Cloud computing provides hardware, software and infrastructural storage to many users at a time. As many users share their data on a cloud the main question is about security of data present on cloud. In this research paper solution is provided to maintain data security and data integrity. This scheme contains a combination of RSA Partial homomorphic and MD5 hashing algorithm. In this solution data is encrypted by RSA Partial before uploading it on cloud server. After uploading its hash value is calculated by MD5 hashing scheme. All these approaches undergo through the following steps Encryption/Decryption, Data uploading on a cloud, Hashing and Verification.