2026-08-02T14:54:51Z https://drops.dagstuhl.de/oai

oai:drops-oai.dagstuhl.de:12757 2024-03-06T10:49:13Z ddc:004 open_access

A Device-Independent Protocol for XOR Oblivious Transfer Kundu, Srijita Sikora, Jamie Tan, Ernest Y.-Z. Quantum cryptography device independence oblivious transfer semidefinite programming security analysis Oblivious transfer is a cryptographic primitive where Alice has two bits and Bob wishes to learn some function of them. Ideally, Alice should not learn Bob’s desired function choice and Bob should not learn any more than logically implied by the function value. While decent quantum protocols for this task are known, many quickly become insecure if an adversary were to control the quantum devices used in the implementation of the protocol. Here we present how some existing protocols fail in this device-independent framework, and give a fully-device independent quantum protocol for XOR oblivious transfer which is provably more secure than any classical protocol. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Srijita Kundu and Jamie Sikora and Ernest Y.-Z. Tan 2020 Is Part Of LIPIcs, Volume 158, 15th Conference on the Theory of Quantum Computation, Communication and Cryptography (TQC 2020) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/LIPIcs.TQC.2020.12 urn:nbn:de:0030-drops-127579 https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.TQC.2020.12 eng https://creativecommons.org/licenses/by/3.0/legalcode