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Erschienen in:
2008 | OriginalPaper | Buchkapitel
Construction of Universal Designated-Verifier Signatures and Identity-Based Signatures from Standard Signatures
verfasst von : Siamak F. Shahandashti, Reihaneh Safavi-Naini
Erschienen in: Public Key Cryptography – PKC 2008
Verlag: Springer Berlin Heidelberg
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We give a generic construction for universal designated-verifier signature schemes from a large class, ℂ, of signature schemes. The resulting schemes are efficient and have two important properties. Firstly, they are provably DV-unforgeable, non-transferable and also non-delegatable. Secondly, the signer and the designated verifier can independently choose their cryptographic settings. We also propose a generic construction for identity-based signature schemes from any signature scheme in ℂ and prove that the construction is secure against adaptive chosen message and identity attacks. We discuss possible extensions of our constructions to universal multi-designated-verifier signatures, hierarchical identity-based signatures, identity-based universal designated verifier signatures, and identity-based ring signatures from any signature in ℂ.