Low-Complexity Secure Network Coding Against Wiretapping Using Intra/Inter-generation Coding  

作　　者：LIU Guangjun LIU Binyue LIU Ximeng LI Fang GUO Wangmei 

机构地区：[1]School of Information Engineering,Xi'an University [2]State Key Laboratory of Integrated Service Networks,Xidian University

出　　处：《China Communications》2015年第6期116-125,共10页中国通信（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.11371290,No.61271174,No. 61301178);the Science and Technology Innovation Foundation of Xi'an(Grant No. CXY1352WL28)

摘　　要：Existing solutions against wiretapping attacks for network coding either bring significant bandwidth overhead or incur a high computational complexity.In order to reduce the security overhead of the existing solutions for securing network coding,a novel securing network coding paradigm is presented relying on two coding models:intra-generation coding and inter-generation coding.The basic idea to secure network coding using intra-generation coding is to limit the encryption operations for each generation,and then subject the scrambled and the remaining original source vectors to a linear transformation.This method is then generalized seamlessly using inter-generation coding by further exploiting the algebraic structure of network coding.We show that the proposed schemes have properties of low-complexity security,little bandwidth consumption,and high efficiency in integrating with the existing security techniques effectively.Existing solutions against wiretap- ping attacks for network coding either bring significant bandwidth overhead or incur a high computational complexity. In order to reduce the security overhead of the existing solutions for securing network coding, a novel securing network coding paradigm is presented relying on two coding models： intra-generation coding and inter-generation coding. The basic idea to secure network coding using intra-generation coding is to limit the encryption operations for each generation, and then subject the scram- bled and the remaining original source vectors to a linear transformation. This method is then generalized seamlessly using inter-generation coding by further exploiting the algebraic structure of network coding. We show that the proposed schemes have properties of low-complexity security, little bandwidth con- sumption, and high efficiency in integrating with the existing security techniques effectively.

关 键 词：network coding security wiretap-ping attacks algebraic coding ENCRYPTION 

分 类 号：TN915.08[电子电信—通信与信息系统]