多源网络编码同态签名方案
罗海;王彩芬;冯帆;于志轩
【期刊名称】《计算机应用研究》 【年(卷),期】2011(028)004
【摘要】由于网络编码的系统很容易受到污染攻击,提出了一个适用于多源网络编码应对污染攻击的同态签名方案.该方案使用了同态哈希函数,能够阻止恶意修改的数据分组.被污染的数据分组会被验证者丢弃,从而保证了系统的安全性.该方案是同态的且是为多源网络编码特别设计的,与文件和分组的大小无关,而且方案中的公钥和每个分组的开销是常量.?cause 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.
【总页数】5页(1465-1469)
【关键词】网络编码;多源;污染攻击;同态签名;同态哈希 【作者】罗海;王彩芬;冯帆;于志轩
【作者单位】西北师范大学,数学与信息科学学院,兰州,730070;西北师范大学,
多源网络编码同态签名方案
