CAJ | 학술논문

对于目前提出的无证书三方密钥协商方案大都使用了耗费时间的对运算，具有较大的计算量，根据离散对数（DL）问题并以公钥密码学理论为基础，设计出一个不用到对运算的无证书三方密钥协商协议，该协议解决了基于身份的密钥协商中的密钥托管的问题。经过安全性证明和效率比较表明该协议有较高的安全性和效率。
대우목전제출적무증서삼방밀약협상방안대도사용료모비시간적대운산，구유교대적계산량，근거리산대수（DL）문제병이공약밀마학이론위기출，설계출일개불용도대운산적무증서삼방밀약협상협의，해협의해결료기우신빈적밀약협상중적밀약탁관적문제。경과안전성증명화효솔비교표명해협의유교고적안전성화효솔。
Most of the Certificateless tripartite Key Agreement(CL-TKA)protocols use the pairings. After analyzing the existing CL-TKA schemes, a novel CL-TKA protocol is proposed based on the certificateless public key cryptography theory. This protocol solves the key escrow problem of the identity-based public key cryptography(ID-PKC). The analysis has showed that this protocol provides a high security and efficient.