標題: | Eavesdropping Prevention for Network Coding Encrypted Cloud Storage Systems |
作者: | Chen, Yu-Jia Wang, Li-Chun Liao, Chen-Hung 電機學院 College of Electrical and Computer Engineering |
關鍵字: | Network coding;distributed storage;data security |
公開日期: | 八月-2016 |
摘要: | Network coding is an important cloud storage technique, which can recover data with small repair bandwidth and high reliability compared to the existing erasure coding and replication methods. However, regardless of which data recovery technique is used, the repaired data in a geographically distributed cloud storage system are easy to be eavesdropped at the transmission link between the local datacenter and its remote backup site. This kind of network security issue is called link eavesdropping in this paper. For a network coded cloud storage system, we propose a systematic design methodology to determine the important data recovery system parameters for any specified security level. Through analysis, we present the performance curves to relate the remote repair bandwidth and the number of coded data fragments. Consequently, all the important system parameters of a network coded data recovery system, including the number of storage nodes and the link capacity between the datacenter and the backup site, can be precisely designed for satisfying different security level requirements. |
URI: | http://dx.doi.org/10.1109/TPDS.2015.2486772 http://hdl.handle.net/11536/134010 |
ISSN: | 1045-9219 |
DOI: | 10.1109/TPDS.2015.2486772 |
期刊: | IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS |
Volume: | 27 |
Issue: | 8 |
起始頁: | 2261 |
結束頁: | 2273 |
顯示於類別: | 期刊論文 |