An efficient identity based generalized signcryption scheme

Generalized signcryption is a new cryptographic primitive, which provides separate or joint encryption and signature as per need. It is more suitable for some storage constrained environments, e.g. smart card, WSN (Wireless Sensor Networks) etc. In this paper, we propose an efficient identity based generalized signcryption scheme. We also simplify the security notions for identity based generalized signcryption and prove the security of the proposed scheme under the new security model.

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