期刊名称：International Journal of Advanced Research In Computer Science and Software Engineering
印刷版ISSN：2277-6451
电子版ISSN：2277-128X
出版年度：2013
卷号：3
期号：7
出版社：S.S. Mishra
摘要：Wireless networks are made upon a shared medium makes it exposed to intentional interference attacks, known as blocking. Due to this intentional interference, a jammer can intensely reduce the network performance by launching a Denial-of-Service (DoS) attack. In this work, we identify the problem of fussy blocking attacks with internal information in wireless networks. In these attacks, the jammer is active only for small portion of time, fussy aiming messages of great significance. We show that fussy blocking attacks can be launched by behaving real-time packet categorization at the physical layer. To soothe these attacks, existing linear all-or-nothing transform before encryption process having a drawback of its linearity and non-randomizing character even if all particular input blocks are protected, a jammer can still obtain information about linear dependencies between several input blocks. To reduce the problem, we address a modified linear all-or-nothing transform after applying CBC mode of data encryption which converts the plaintext into cipher-text before converting into pseudo-messages. By masking the last block of pseudo-message makes the cipher-text more stronger. This construction is significantly more efficient and ensures that a jammer does not even know the exact cipher-text.
关键词：Denial-of-Service; Fussy Blocking; Packet Categorization; Modified Linear AONT; CBC Transform
