On homomorphic signature scheme for multi-source network coding
YU Zhi-xuan · Jisuanji yingyong yanjiu · 2011
Because of network coding systems are very vulnerable to pollution attacks,this paper proposed a novel homomorphic signature schemes for multi-source network coding to prevent pollution attacks.This scheme made use of the homomorphic hash function and prevented malicious modification of data packets.Polluted data packets would be discarded by the verifier and thus ensure the security of the system.This scheme is homomorphic and specially designed for multi-source network coding and independent of the file or packet size: both public keys and per packet overhead being constant.