ScholarWorks@숙명여자대학교

초록

Distributed storage plays an important role in the network of personal devices, owing to its fault tolerance and quick retrieval of stored files. To enhance the security and privacy of the stored data, secret sharing schemes have been employed for distributed storage. Among the existing secret sharing schemes, a combinatorial-based file sharing scheme is the most suitable one because of its lightweight structure and low cost. However, there remains the problem that the sizes of the distributed stored file shares in the devices do not support the heterogeneous personal device environment, which may cause an additional efficiency problem. In this paper, we provide an efficiency-enhanced combinatorial-based file sharing scheme for distributed storage with personal devices, which considers the heterogeneous characteristics thereof. In addition to existing combinatorial-based file sharing, for the file storing process, we propose a method of determining the sizes of file shares according to the remaining storage capacities and average communication speeds of the participant personal devices. In the discussion, we demonstrate that our scheme manages the distributed storage system with personal devices efficiently compared to alternative existing sharing schemes. © 2017 SERSC Australia.

키워드