摘要
针对当前基于RC编码的容错技术的安全缺陷,提出了一种安全编码——SRCS编码,以保证在云计算以及云存储这种高度开放环境下,存储系统容错过程中数据的安全性。该编码将门限体制引入到了传统的RC编码当中,利用基于公钥的门限体制保护编码矩阵,在确保基于传统RC编码的容错技术高效、低冗余优势的前提下,解决了其在开放环境下编码矩阵存在的安全问题。最后利用判定性BDHE假设,在部分适应性攻击模型下证明了SRCS编码的安全性。
A secure regenerating code, called SRCS was proposed to solve the security problem during the process of the fault-tolerant of storage systems, especially the storage system in an extremely open environment such as cloud compu-ting and cloud storage. SRCS achieves the security of the encoding matrix in the regenerating code using the threshold public-key encryption with low redundancy and high efficiency. It is proven that SRCS is secure in the semi-adaptive model using decisional BDHE assumption.
出处
《通信学报》
EI
CSCD
北大核心
2014年第3期109-115,共7页
Journal on Communications
基金
国家科技支撑计划基金资助项目(2008BAH37B03)~~
关键词
RC编码
容错技术
云计算
云存储
基于公钥的门限体制
判定性BDHE假设
regenerating codes
fault-tolerant
cloud computing
cloud storage
threshold public-key encryption：decisional BDHE assumption
