New identity-based signcryption scheme
Caifen Wang · Jisuanji yingyong yanjiu · 2010
To improve the efficience,this paper proposed a new efficient identity-based signcryption scheme using the bilinear pairings and both the combination of public and private key crypto systems. And it also proved the scheme's security in the random oracle model while assuming the hardness of Bilinear Diffie-Hellman( BDH) problem and Decisional Bilinear Diffie-Hellman( DBDH) problem. Compared with the existing identity-based signcryption scheme,the sheme had high efficiency.