Provably secure certificate-based blind signature
Rufen Huang, Qiang Nong, Zhenjie Huang · Jisuanji yingyong yanjiu · 2012
Combining certificate-based signature and blind signature,this paper firstly proposed an efficient certificate-based blind signature scheme under a strong security model.The scheme was existentially unforgeable against adaptively chosen-message attack and chosen-identity attack.The complete security proof has been given under random oracle model.Its security was based on the q-strong Diffie-Hellman problem(q-SDHP) and the expand inversed Diffie-Hellman problem(E-inv-CDHP).The results show that the new scheme has a high degree of security.It not only simplifies the certificate management process,but also overcomes the private key escrow problem.Furthermore,its overall performance is relatively high.