Identity-based generalized signcryption in standard model
Zhao Long · Jisuanji yingyong yanjiu · 2010
This paper conducted a research on identity-based gengeralized signcryption under the standard model for the first time. It proposed an identity-based generalized signcryption scheme and gave its security proof in the standard model. It shows that the confidentiality satisfies the semantic security notion IND-CCA2 under the decisional bilinear Diffie-Hellman assumption and the unforgeability against adaptive chosen message attack derives under the computational Diffie-Hellman assumption. Compare with the two identity-based generalized signcryption schemes,the proposed one is comparably efficient and provably secure under standard model.