Blind signcryption scheme using self-certified public keys

By merging the concepts of self-certified public key and blind signcryption for the first time,this paper proposed a new blind signcryption scheme from bilinear pairings using self-certified public keys and proved its security in the random oracle model.Proved the scheme to be secure under the hardness of elliptic curve discrete logarithm problem and gap bilinear Diffie-Hellman problem.The new scheme overcame the inherent key escrow problem of identity-based cryptography,no public key certificate was required.Moreover,the proposed was efficient since only two pairing operations were required.