Results 181 to 190 of about 5,815,691 (236)
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Oblivious Transfer Over Compound Binary Erasure Channels
IEEE Communications Letters, 2022Oblivious Transfer (OT) is a broadly studied cryptographic primitive which involves two mutually distrustful users who wish to interact with each other in order to transfer messages in an oblivious manner.
Anuj Kumar Yadav, Preetam Kumar
semanticscholar +1 more source
2016
Motivated by the goal of improving the concrete efficiency of secure multiparty computation MPC, we study the possibility of implementing an infrastructure for MPC. We propose an infrastructure based on oblivious transfer OT, which would consist of OT channels between some pairs of parties in the network.
Ranjit Kumaresan +2 more
openaire +2 more sources
Motivated by the goal of improving the concrete efficiency of secure multiparty computation MPC, we study the possibility of implementing an infrastructure for MPC. We propose an infrastructure based on oblivious transfer OT, which would consist of OT channels between some pairs of parties in the network.
Ranjit Kumaresan +2 more
openaire +2 more sources
Oblivious transfer with access control
Proceedings of the 16th ACM conference on Computer and communications security, 2009We present a protocol for anonymous access to a database where the different records have different access control permissions. These permissions could be attributes, roles, or rights that the user needs to have in order to access the record. Our protocol offers maximal security guarantees for both the database and the user, namely (1) only authorized ...
CAMENISCH JAN LEONHARD +2 more
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An Improved Lower Bound on Oblivious Transfer Capacity Using Polarization and Interaction
International Symposium on Information TheoryWe consider the oblivious transfer (OT) capacities of noisy channels against the passive adversary; this problem has not been solved even for the binary symmetric channel (BSC).
So Suda, Shun Watanabe
semanticscholar +1 more source
Counterfactual All‐Or‐Nothing Oblivious Transfer for Quantum Messages
Advanced Quantum TechnologiesOblivious transfer (OT) protocol is an essential building block for secure multiparty computation. The transmission of quantum messages is conductive in executing complex secure multiparty quantum computation tasks and even distributed quantum ...
Xiao-Qiu Cai +4 more
semanticscholar +1 more source
Oblivious transfers and intersecting codes
IEEE Transactions on Information Theory, 1996Summary: Assume \({\mathcal A}\) owns \(t\) secret \(k\)-bit strings. She is willing to disclose one of them to \({\mathcal B}\), at his choosing, provided he does not learn anything about the other strings. Conversely, \({\mathcal B}\) does not want \({\mathcal A}\) to learn which secret he chose to learn.
Gilles Brassard +2 more
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Network Oblivious Transfer via Noisy Broadcast Channels
arXiv.orgThis paper investigates information-theoretic oblivious transfer via a discrete memoryless broadcast channel with one sender and two receivers. We analyze both non-colluding and colluding honest-but-curious user models and establish general upper bounds ...
Hadi Aghaee +2 more
semanticscholar +1 more source
On Information Theoretical Limits of Oblivious Transfer
2025 IEEE Globecom Workshops (GC Wkshps)Information-theoretical limits of oblivious transfer are studied. First, we explore the feasibility and constraints of implementing oblivious transfer protocols over some communication channels, with a focus on noisy point-to-point and multiple-access ...
Hadi Aghaee +2 more
semanticscholar +1 more source
Computationally Differentially Private Inner-Product Protocols Imply Oblivious Transfer
Annual International Cryptology ConferenceIn distributed differential privacy, multiple parties collaborate to analyze their combined data while each party protects the confidentiality of its data from the others.
Iftach Haitner +4 more
semanticscholar +1 more source
Oblivious Transfers and Privacy Amplification
Journal of Cryptology, 2003One-of-the-two \(k\)-bits string oblivious transfer (OT) is an important cryptographic primitive, and it is already known that string OT may be directly reduced to one-of-two bits OT. In the paper a new approach to the reduction problem is presented.
Gilles Brassard +2 more
openaire +1 more source