Results 131 to 140 of about 2,689 (221)

Experimental secure multiparty computation from quantum oblivious transfer with bit commitment

open access: yesnpj Quantum Information
Secure multiparty computation enables collaborative computations across multiple users while preserving individual privacy, which has a wide range of applications in finance, machine learning and healthcare.
Kai-Yi Zhang   +7 more
doaj   +1 more source

E-Coin-Based Priced Oblivious Transfer with a Fast Item Retrieval

open access: yesCryptography
Priced oblivious transfer (POT) is a cryptographic protocol designed for privacy-preserving e-commerce of digital content. It involves two parties: the merchant, who provides a set of priced items as input, and a customer, who acquires one of them. After
Francesc Sebé, Sergi Simón
doaj   +1 more source

Oblivious Transfer Protocol with Verification

open access: yesCoRR, 2015
Although random sequences can be used to generate probability events, they come with the risk of cheating in an unsupervised situation. In such cases, the oblivious transfer protocol may be used and this paper presents a variation to the DH key-exchange to serve as this protocol.
openaire   +2 more sources

A general model for oblivious transfer

open access: yes, 2007
Naor and Pinkas (1999a) pointed out that 'this is of interest, given the possibility of implementing Oblivious Transfer using physical means, e.g., via a noisy channel or quantum cryptography.
Ghodosi, Hossein
core  

Practical and unconditionally secure spacetime-constrained oblivious transfer

open access: yes, 2018
Accepted manuscriptInternational audienceSpacetime-constrained oblivious transfer (SCOT) extends the fundamental primitive of oblivious transfer to Minkowski space.
Pitalúa-García, Damián   +1 more
core   +1 more source

Privacy-Preserving Set Intersection Protocol Based on SM2 Oblivious Transfer

open access: yesComputers
Private Set Intersection (PSI) is a fundamental cryptographic primitive in privacy-preserving computation and has been widely applied in federated learning, secure data sharing, and privacy-aware data analytics.
Zhibo Guan   +7 more
doaj   +1 more source

On Security of Sublinear Oblivious Transfer

open access: yes, 2006
We study the maximal security attainable by adaptive m-out-of-n oblivious transfer protocols with sublinear communication. It is known how to construct such protocols that are private, but not known how to construct such protocols that are (fully ...
Helger Lipmaa, Sven Laur
core  

Unconditional security and privacy preserving oblivious transfer

open access: yes, 2012
Various cybercrimes are major threats to Ebusiness. We propose an offline oblivious data distribution framework that preserves the sender's security and the receiver's privacy using tamper-proof smart cards.
Ghodosi, Hossein, Lee, Ickjai
core  

Protocols for Authenticated Oblivious Transfer [PDF]

open access: yes, 2016
Oblivious transfer (OT) is a basic building block in many cryptographic protocols. In this paper, we exploit some well-known authenticated Diffie-Hellman-based key exchange protocols to build three authenticated 1-out-of-2 oblivious transfers.
Hamid Mala, Mehrad Jaberi
core  

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