基于网络编码认证码的PUMA安全协议研究

In the Ad-hoc networks, PUMA (Protocol for Unified Multicasting through Announcements) establishes and maintains a shared multicast network without the supporting of unicast routing protocol or re-distribution the core of multicast group. It can achieve high data delivery ratio for various networks with only limited control overhead. This paper analyzes the advantages and disadvantages of network coding and PUMA. And it proposes an authentication code for network coding based secure PUMA protocol, ACNC-SPUMA. The security authentication code of the new protocol aims at preventing pollution attacks in network coding. The simulation on NS2 shows that ACNC-SPUMA has enhanced the security of PUMA while improving efficiency and reducing energy consumption.