CAJ | 학술논문

现有的很多匿名认证方案中，匿名认证过程较为复杂，匿名的可控性比较随意，针对这两个问题，在求解离散对数困难性的基础上，提出了一个新的门限匿名认证方案。借助线性方程组的求解理论，获得成员的秘密份额和公钥身份等信息；基于门限共享的思想，实现示证者身份的匿名认证和匿名追踪。该方案中认证者的匿名性、门限可追踪性以及身份的不可冒充性满足了匿名认证的安全需求，在电子商务、移动通信等众多领域将具有广阔的应用前景。
현유적흔다닉명인증방안중，닉명인증과정교위복잡，닉명적가공성비교수의，침대저량개문제，재구해리산대수곤난성적기출상，제출료일개신적문한닉명인증방안。차조선성방정조적구해이론，획득성원적비밀빈액화공약신빈등신식；기우문한공향적사상，실현시증자신빈적닉명인증화닉명추종。해방안중인증자적닉명성、문한가추종성이급신빈적불가모충성만족료닉명인증적안전수구，재전자상무、이동통신등음다영역장구유엄활적응용전경。
Among the most of present anonymous authentication schemes, anonymous authentication process is complex, and the anonymous controllability is optional. To solve these two problems, a new threshold anonymous authentication scheme based on the intractability of the discrete logarithm is presented. With the help of the theory of solving linear equations, the member can get a share and the public key etc. Based on the idea of threshold secret sharing, the prover can be anonymous authenticated and anonymous tracked. The prover of the scheme is anonymous, threshold traceable, and inimitable, which can make the scheme well satisfy the security of anonymous authentication. The scheme will have broad application pros-pects in many fields such as electronic commerce, mobile communication.