基于SCR算法的身份鉴别和签名,大部分计算可在预处理阶段完成,效率较高,安全性在于计算离散对数难度。基于此算法和离散对数相关理论,设计了一种无序多重群签名方案,具有较强的实用性。最后分析了这两种方案的安全性和性能。 Based on the SCR algorithm’s identity authentication and signature, most of the computations can be done in the preprocessing stage, which is more efficient and the security is to calculate the discrete logarithm difficulty. Based on this algorithm and the theory of discrete logarithm correlation, an out-of-order multi-group signature scheme is designed and has strong practicality. Finally, the security and performance of these two schemes are analyzed.