PERFORMANCE ANALYSIS OF CRYPTOGRAPHIC ALGORITHMS FOR CLOUD SECURITY

Cloud generally relates to storing, processing and managing of data over a network. The cloud provides mainly three services, storage as a service, platform as a service and software as a service using internet, based on the user's demand. As it became a vital platform, many companies are building their infrastructure. This has increased the corresponding vulnerabilities and threats as these services are often provided by third parties. So, security of the information in the cloud is a noteworthy issue for the cloud client. On the other hand, Performance of the security-based algorithms is another major concern. So, the work plan is to analyze the efficiency of these algorithms, based on the encryption time, decryption time, encryption throughput and memory utilized for encryption by the algorithms for different sizes of file formats like text, image and video. Further, eliminating the privacy concerns of data stored in cloud by enhancing the security using encryption algorithms like DES,3DES,AES and BLOWFISH.