NDLI: Oblivious Transfer à la Merkle

Content Provider	IEEE Xplore Digital Library
Author	Brassard, G. Salvail, L. Tapp, A.
Copyright Year	2009
Abstract	Oblivious transfer (OT) is a fundamental primitive in cryptography. It is known that unconditionally secure OT is impossible, even with the help of quantum mechanics. Furthermore, no classical OT scheme has been proven to offer computational security in the usual super-polynomial model, and there is evidence that such schemes cannot be based on one-way permutations. Nevertheless, inspired by Ralph Merkle's 1974 key distribution scheme, we offer a novel classical OT scheme based on one-way permutations and prove its polynomial security: the effort to cheat it scales as t^{3/2}, where t is the legitimate effort needed to implement it. Unfortunately, our scheme melts down under the onslaught of a quantum adversary after an effort merely in the order of t^{5/6}, so that it is actually easier to subvert it than to use it legitimately! By allowing the honest parties to use quantum computation as well, however, it may be that our OT scheme can be repaired so as to resist modest quantum attacks.
Starting Page	102
Ending Page	108
File Size	252814
Page Count	7
File Format	PDF
ISBN	9781424433490
DOI	10.1109/ICQNM.2009.28
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-02-01
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Information-theoretic security Merkle's puzzles Proposals History Quantum computing Quantum mechanics Oblivious Transfer Resists Public key cryptography Polynomials Hardware Grover's algorithm Computer security Protection Quantum cryptography
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Quantum Merkle Puzzles

Quantum Oblivious Transfer and Fair Digital Transactions

A Computationally Secure Quantum Oblivious Transfer Scheme

A New Knapsack Public-Key Cryptosystem

Cryptanalysis of a Knapsack Public Key Cryptosystem

Quantum Oblivious Transfer Using Tripartite Entangled States

Distributed Oblivious Transfer (2000)

Research Directions in Quantum Cryptography

A Secret Sharing Scheme Based on NTRU Algorithm

Oblivious Transfer à la Merkle

Similar Documents

Quantum Merkle Puzzles

Quantum Oblivious Transfer and Fair Digital Transactions

A Computationally Secure Quantum Oblivious Transfer Scheme

A New Knapsack Public-Key Cryptosystem

Cryptanalysis of a Knapsack Public Key Cryptosystem

Quantum Oblivious Transfer Using Tripartite Entangled States

Distributed Oblivious Transfer (2000)

Research Directions in Quantum Cryptography

A Secret Sharing Scheme Based on NTRU Algorithm

Oblivious Transfer à la Merkle