SECURITY ALGORITHM USED IN CLOUD COMPUTING

Cloud Computing is the storing and accessing of data in the Internet instead of a computer's hard disk. Since the security is genuinely a concern for the cloud computing, there is growing usage of security algorithm. The common algorithm are RSA ( Rivest, Shamir, and Adleman), AES Algorithm (Advanced Encryption Standard), DES Algorithm (Data Encryption Standard), Blowfish Algorithm. Among this, RES is the most common public key Algorithm. Here, AES, RSA, Blowfish, DES are respectively 128,19 2,256 bits 1024 bits 32-448 bits 56 bits. the AES isSecure for both provide r and user, RSA is Secure for user only, Blowfish is  Secure for both provide rs and user/cli ent side and DES applies Security applied to both providers and users.