Signcrption scheme based on fuzzy identity without random oracles
Hong Liu · Jisuanji gongcheng yu sheji · 2012
Aimed to the Hash function's returning value is not truly random,based on Sahai and Waters' scheme,using bilinear paring of elliptic curves and threshold secret sharing,a new fuzzy identity based signcryption scheme without the random oracle model is proposed.Compared with Zhang et al recently proposed signcryption scheme,this scheme doesn't use Hash function,the efficiency is higher and public parameters are less.The scheme's security is reduced to computation Diffie-Hellman and discrete logarithm assumptions.So that it can better meet the needs of practical applications.