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Lattice-based public-key encryption has a large number of design choices that can be combined in diverse ways to obtain different tradeoffs. One of these choices is the distribution from which secret ...
Information theoretically secure secret-key exchange between two parties, Alice and Bob, is a well-studied problem that is provably impossible without additional assumptions. However, it has shown to ...
We show how to construct secret-key functional encryption (SKFE) supporting unbounded polynomially many functional decryption keys, that is, collusion-resistant SKFE solely from SKFE supporting only o...
We show that indistinguishability obfuscation (IO) for all circuits can be constructed solely from secret-key functional encryption (SKFE). In the construction, SKFE need to be able to issue a-priori ...
We propose simple generic constructions of indistinguishability obfuscator (IO). Our key tool is exponentially-efficient indistinguishability obfuscator (XIO), which is the same as IO except that the ...
Functional encryption lies at the frontiers of current research in cryptography; some variants have been shown sufficiently powerful to yield indistinguishability obfuscation (IO) while other variant...
The Open Smart Grid Protocol (OSGP) is a widely used industry standard for exchanging sensitive data between devices inside of smart grids. For message confidentiality, OSGP implements a customised fo...
A (γ,δ)-elastic channel is a binary symmetric channel between a sender and a receiver where the error rate of an honest receiver is δ while the error rate of a dishonest receiver lies within the inter...
We consider secret key agreement by multiple parties observing correlated data and communicating interactively over an insecure communication channel. Our main contribution is a single-shot upper b...
We propose a new approach to the construction of secret-key authentication protocols making black-box use of a pseudorandom generator (PRG). Our authentication protocols require only two messages, h...
An encryption relation f伜Z亊Z with decryption function f−1 is {\it ``group-homomorphic''} if, for any suitable plaintexts x1 and x2, x1+x2=f−1(f(x1)+f(x2)). It is {\it ``ring-homomorphic''}...
Polar codes are a new class of error correcting linear block codes, whose generator matrix is specified by the knowledge of transmission channel parameters, code length and code dimension. Moreover, r...
This paper proposes an efficient secret key cryptosystem based on polar codes over Binary Erasure Channel. We introduce a method, for the first time to our knowledge, to hide the generator matrix of t...
Common Randomness Generation (CRG) and Secret Key Establishment (SKE) are fundamental primitives that are used in information-theoretic coding and cryptography. We study these two problems over the ...
Common Randomness Generation (CRG) and Secret Key Establishment (SKE) are fundamental primitives that are used in information-theoretic coding and cryptography. We study these two problems over the tw...

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