New identity-based signcryption scheme
Caifen Wang
Abstract
Caifen Wang
Abstract
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.
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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.
Key concepts: Signcryption, Random oracle, Bilinear interpolation, Computer science, Scheme (mathematics), Identity (music), Public-key cryptography, Computer security