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On the Composability of Statistically Secure Random Oblivious Transfer

Dowsley, Rafael; Müller-Quade, Jörn; Nascimento, Anderson C. A.

Abstract:
We show that random oblivious transfer protocols that are statistically secure according to a definition based on a list of information-theoretical properties are also statistically universally composable. That is, they are simulatable secure with an unlimited adversary, an unlimited simulator, and an unlimited environment machine. Our result implies that several previous oblivious transfer protocols in the literature that were proven secure under weaker, non-composable definitions of security can actually be used in arbitrary statistically secure applications without lowering the security.

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Verlagsausgabe §
DOI: 10.5445/IR/1000127026
Veröffentlicht am 30.11.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Informatik (ITI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 1099-4300
KITopen-ID: 1000127026
Erschienen in Entropy
Band 22
Heft 1
Seiten 107
Vorab online veröffentlicht am 16.01.2020
Schlagwörter random oblivious transfer, unconditional security, universal composability
Nachgewiesen in Scopus
Web of Science
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