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In the present paper we introduce some sufficient conditions and a procedure for checking whether, for a given function, CCZ-equivalence is more general than EA-equivalence together with taking invers...
Equivalences and Black-Box Separations of Matrix Diffie-Hellman Problems
Matrix Diffie-Hellman Problems Black-Box Reductions Decisional Linear Assumption
2017/2/20
In this paper we provide new algebraic tools to study the relationship between different Matrix Diffie-Hellman (MDDH) Problems, which are recently introduced as a natural generalization of the so-call...
Deterministic Encryption: Definitional Equivalences and Constructions without Random Oracles
Deterministic Encryption Definitional Equivalences Random Oracles
2009/6/5
We strengthen the foundations of deterministic public-key encryption via definitional equivalences
and standard-model constructs based on general assumptions. Specifically we consider seven notions o...