2026-08-04T08:33:46Z https://drops.dagstuhl.de/oai

oai:drops-oai.dagstuhl.de:25086 2026-02-09T08:06:02Z ddc:004 open_access

Quantum Protocols for Rabin Oblivious Transfer Andersson, Erika Bansal, Akshay Peat, James T. Sikora, Jamie Wu, Jiawei quantum cryptography oblivious transfer information-theoretic security Rabin oblivious transfer is the cryptographic task where Alice wishes to receive a bit from Bob but it may get lost with probability 1/2. In this work, we provide protocol designs which yield quantum protocols with improved security. Moreover, we provide a constant lower bound on any quantum protocol for Rabin oblivious transfer. To quantify the security of this task with asymmetric cheating definitions, we introduce the notion of cheating advantage which may be of independent interest in the study of other asymmetric cryptographic primitives. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Erika Andersson and Akshay Bansal and James T. Peat and Jamie Sikora and Jiawei Wu 2025 Is Part Of LIPIcs, Volume 360, 45th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2025) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/LIPIcs.FSTTCS.2025.7 urn:nbn:de:0030-drops-250866 https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2025.7 eng https://creativecommons.org/licenses/by/4.0/legalcode