An Enhanced Data Integrity Model In Mobile Cloud Environment Using Digital Signature Algorithm And Robust Reversible Watermarking

摘要

the increase use of hand held devices such as smart phones to access multimedia content in the cloud is increasing with rise and growth in information technology. Mobile cloud computing is increasingly used today because it allows users to have access to variety of resources in the cloud such as image, video, audio and software applications with minimal usage of their inbuilt resources such as storage memory by using the one available in the cloud. The major challenge faced with mobile cloud computing is security. Watermarking and digital signature are some techniques used to provide security and authentication on user data in the cloud. Watermarking is a technique used to embed digital data within a multimedia content such as image, video or audio in order to prevent authorized access to those content by intruders whereas, digital signature is used to identify and verify user data when accessed. In this work, we implemented digital signature and robust reversible image watermarking in order enhance mobile cloud computing security and integrity of data by providing double authentication techniques. The results obtained show the effectiveness of combining the two techniques, robust reversible watermarking and digital signature by providing strong authentication to ensures data integrity and extract the original content watermarked without changes.