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Some Open Problems in Information-Theoretic Cryptography

Author Vinod Vaikuntanathan

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Vinod Vaikuntanathan

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Vinod Vaikuntanathan. Some Open Problems in Information-Theoretic Cryptography. In 37th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 93, pp. 5:1-5:7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018) https://doi.org/10.4230/LIPIcs.FSTTCS.2017.5

Abstract

Information-theoretic cryptography is full of open problems with a communication-complexity flavor. We will describe several such problems that arise in the study of private information retrieval, secure multi-party computation, secret sharing, private simultaneous messages (PSM) and conditional disclosure of secrets (CDS). In all these cases, there is a huge (exponential) gap between the best known upper and lower bounds. We will also describe the connections between these problems, some old and some new.

Subject Classification

Keywords
  • Cryptography
  • Information-Theoretic Security
  • Private Information Retrieval
  • Secret Sharing
  • Multiparty Computation

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