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计算机应用研究 2009
Blind signcryption scheme using self-certified public keys
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Abstract:
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.