CAJ | 학술논문

对Gu方案进行密码学分析,发现该方案不具有强不可伪造性,且由于基于离散对数问题,实现效率不高,数据冗余量大.基于椭圆曲线公钥密码体制(ECC)构造了一个新的不需要可信方的匿名代理签名方案,并对新方案的各项基本性质进行了具体分析.新方案具有强不可伪造性,且签名结果不合冗余数据,安全性高,实现速度快,具有更好的实际应用前景.
대Gu방안진행밀마학분석,발현해방안불구유강불가위조성,차유우기우리산대수문제,실현효솔불고,수거용여량대.기우타원곡선공약밀마체제(ECC)구조료일개신적불수요가신방적닉명대리첨명방안,병대신방안적각항기본성질진행료구체분석.신방안구유강불가위조성,차첨명결과불합용여수거,안전성고,실현속도쾌,구유경호적실제응용전경.
It is found that the Gu scheme has not got the property of strong unforgeability and low implementation effi-ciency and redundant data of the construction of discrete logarithm problem.This paper proposed a new anonymous proxy signature scheme without trusted party based on ECC, and analyzed the essential security characters it has.It shows that the new scheme can keep the property of the unforgeability and does not have the redundant data in signa-ture.It also has the quality of high security and high efficiency of implementation.