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Quantum Attacks on Classical Proof Systems - The Hardness of Quantum Rewinding
Quantum cryptography proofs of knowledge rewinding
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2016/1/23
Quantum zero-knowledge proofs and quantum proofs of knowledge are inherently difficult to analyze because their security analysis uses rewinding. Certain cases of quantum rewinding are handled by th...
On the Power of Rewinding Simulators in Functional Encryption
public-key cryptography functional encryption
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2014/3/6
In the recent years, functional encryption (FE) has received a lot of attention due to its versatility and unique challenges it poses. In FE, a receiver with secret-key $sk_y$ can compute from an encr...
On the Necessity of Rewinding in Secure Multiparty Computation
Necessity Secure Multiparty Computation
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2008/12/17
We investigate whether security of multiparty computation in the informationtheoretic
setting implies their security under concurrent composition. We show that security
in the stand-alone model prov...