161. SECURITY IN DISTRIBUTED STORAGE SYSTEMS – ENCRYPTION ALGORITHM VS. CODING SCHEMES
Distributed storage systems (DSS) are crucial for managing large amount of data produced on daily bases. The concept for data distribution and storage play important role for obtaining efficient, reliable and secure system. Currently used replication technique is almost replaced with use of other coding schemes, which reduces the unnecessary system redundancy, improve the reconstruction and repair processes and increases the security. In this paper we are considering the DSS security in sense of using certain methods for preventing possible attacks. A security model is conceived by predicting all possible weak points in the DSS system, where potential attacks can happen. Along with the proposed model is made a comprehensive overview of literature that covers applying different techniques for handling those issues. Hence, a classification is prepared of all used methods, encryption algorithms and coding schemes, with the appropriate concepts resolving various type of attacks. Further, system performance analyses are given and is concluded which method performs better when the system considers the security issue and which one when it is excluded.