Paper Title
Proxy Based Data Security for Cloud Data

Abstract
The data sharing in cloud computing plays a very important role and most innovative way in the current world. The main motto is about data privacy and promising solution to secure our data sharing. It enables the authenticated user to encrypt shared data into the cloud with the help of the trusted cloud server into the encryption of the data. In this paper, we mainly concentrate to provide security to shared data among various users on the cloud. An attacker is apt to identify an individual from the published tables, with attacks through the various linkage such as record linkage, attribute linkage and individual table linkage, attribute linkage and linkages like record linkage, attribute linkage and individual table linkage or the probabilistic attack. To keep the sensitive data against the untrusted third parties, we use many cryptographic algorithms and techniques . In particular, we reviewed the old algorithm implementations of the proxy server design analogy, examining the security models of existing schemes. Alternatively, in this paper we are proposing sensitive label privacy preservation with anonymization. The real-world relationship data are applied to evaluate the performance of k-anonymization. Keywords - Cloud Computing, Proxy Server, Security Attacks, Saas, Paas, Iaas, Transparency Service Model(TSM).