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Chapter and Conference Paper
Certificate-Based Signatures: New Definitions and a Generic Construction from Certificateless Signatures
Certificate-based encryption was introduced in Eurocrypt’03 to solve the certificate management problem in public key encryption. Recently, this idea has been extended to certificate-based signatures. To date,...
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Chapter and Conference Paper
Convertible Undeniable Proxy Signatures: Security Models and Efficient Construction
In the undeniable signatures, the validity or invalidity can only be verified via the Confirmation/Disavowal protocol with the help of the signer. Convertible undeniable signatures provide the flexibility that...