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- W198492818 abstract "In 1984, Shamir proposed a new public key cryptography, the identity (ID)-based encryption and signature schemes which allows any pair of users to communicate securely and to verify each other’s signatures without exchanging certificates. Since then, we have several ID-based signatures based on the discrete logarithm problem. While they have an advantage that the system secret can be shared by several parties through threshold schemes, they have a critical disadvantage in efficiency. To enhance the efficiency of verification, we propose a new ID-based signature scheme that allows batch verification of multiple signatures. The verification cost of the proposed signature scheme for k signatures is almost constant with minimal security loss and when a new signature by a different signer is added to the batch verification, the additional cost is almost a half of that of a single signature. We prove that the proposed signature scheme is secure against existential forgery under adaptively chosen message and ID attack in the random oracle model and show why other ID-based signature schemes are hard to achieve these properties." @default.
- W198492818 created "2016-06-24" @default.
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- W198492818 date "2004-01-01" @default.
- W198492818 modified "2023-09-28" @default.
- W198492818 title "A New ID-based Signature with Batch Verification." @default.
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