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In Eurocrypt 2003, Gentry introduced the notion of certificate-based encryption. The merit of certificate-based encryption lies in the following features: (1) providing more efficient public-key infrastructure (PKI) that requires less infrastructure, (2) solving the certificate revocation problem, and (3) eliminating third-party queries in the traditional PKI. In addition, it also solves the inherent...
Certificate-based cryptography combines the merits of traditional public key infrastructure (PKI) and identity-based cryptography. It does not have the key escrow problem in identity-based cryptography, and eliminates the certificate revocation problem and third-party queries in traditional PKI. In this paper, we first refine the security model of certificate-based signatures introduced in EuroPKI’07...
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