摘要
对一种基于双线性对的新型门限代理签名方案进行了密码分析,发现该门限代理签名方案不能抵抗伪造攻击和公钥替换攻击。对该方案进行了改进,改进后的门限代理签名方案克服了原门限代理签名方案的安全隐患,并且保留了原门限代理签名方案的优点。
Through the cryptanalysis of a threshold proxy signature scheme based on bilinear pairings, it was found that the scheme couldn't resist forgery attack and public-key substitute attack. An improvement to mend the security leaks was proposed, which overcame the disadvantages and retained the merits of the original threshold proxy signature scheme.
出处
《计算机应用》
CSCD
北大核心
2006年第7期1631-1633,共3页
journal of Computer Applications
基金
国家自然科学基金资助项目(10271069)
河南省自然科学基金资助项目(0511010300)
关键词
双线性对
门限代理签名
伪造攻击
公钥替换攻击
bilinear pairings
threshold proxy signature
forgery attack
public-key substitute attack