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We extend the techniques of Kiltz et al. (in ASIACRYPT 2010) and Galindo et al. (in SAC 2012) to construct two efficient leakage-resilient signature schemes. Our schemes based on Boneh-LynnShacham (BLS) short signature and Waters signature schemes, respectively. Both of them are more efficient than Galindo et al.’s scheme, and can tolerate leakage of (1−… (More)

We design a proxy signature in the setting of leakage-resilient cryptography for the first time. Our motivation is that the proxy signatures are often used in scenarios where the signing is done in an insecure environment, e.g., the proxy key is stored in a device which is not secure enough example of IC card. In such setting, an adversary who can launch… (More)

- Hongda Li, Qihua Niu, Guifang Huang
- IACR Cryptology ePrint Archive
- 2014

Garg, Jain, and Sahai first consider zero knowledge proofs in the presence of leakage on the local state of the prover, and present a leakageresilient-zero-knowledge proof system for HC (Hamiltonian Cycle) problem. Their construction is called (1 + ε)-leakage-resilient zero-knowledge, for any constant ε > 0, because the total length of the leakage the… (More)

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