F. Li, X. Xin, and Y. Hu
Network security, cryptography, signcryption, certificate-based sign- cryption, bilinear pairings
Signcryption is a public key cryptographic primitive that per- forms digital signature and public key encryption simultaneously, at lower computational costs and communication overheads than the signature-then-encryption approach. In this paper, an eļ¬cient certificate-based signcryption scheme based on bilinear pairings is proposed. As compared to traditional and identity-based signcryp- tion schemes, the proposed scheme has the following advantages: it provides implicit certification; it does not have the private key es- crow feature of identity-based signcryption schemes. we also analyze the proposed scheme from security and performance points of view.
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