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Efficient and Universally Composable Committed Oblivious Transfer and Applications [chapter]

Juan A. Garay, Philip MacKenzie, Ke Yang
<span title="">2004</span> <i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
Committed Oblivious Transfer (COT) is a useful cryptographic primitive that combines the functionalities of bit commitment and oblivious transfer.  ...  In this paper, we introduce an extended version of COT (ECOT) which additionally allows proofs of relations among committed bits, and we construct an efficient protocol that securely realizes an ECOT functionality  ...  Universally Composable Committed Oblivious Transfer In this section we present the F ECOT functionality, an extension of COT where in addition to the oblivious transfer, the sender can prove to the receiver  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-540-24638-1_17">doi:10.1007/978-3-540-24638-1_17</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/ohqxrlmkebhvbjdfpzdm4f3vb4">fatcat:ohqxrlmkebhvbjdfpzdm4f3vb4</a> </span>
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Efficient and Universally Composable Committed Oblivious Transfer and Applications [chapter]

Juan A. Garay, Philip MacKenzie, Ke Yang
<i title="Springer Berlin Heidelberg"> Theory of Cryptography </i> &nbsp;
Committed Oblivious Transfer (COT) is a useful cryptographic primitive that combines the functionalities of bit commitment and oblivious transfer.  ...  In this paper, we introduce an extended version of COT (ECOT) which additionally allows proofs of relations among committed bits, and we construct an efficient protocol that securely realizes an ECOT functionality  ...  Universally Composable Committed Oblivious Transfer In this section we present the F ECOT functionality, an extension of COT where in addition to the oblivious transfer, the sender can prove to the receiver  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/10986196_29">doi:10.1007/10986196_29</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/t6z7a4yw5nfohaagt4ren5f6dy">fatcat:t6z7a4yw5nfohaagt4ren5f6dy</a> </span>
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Generation and Distribution of Quantum Oblivious Keys for Secure Multiparty Computation

Mariano Lemus, Mariana F. Ramos, Preeti Yadav, Nuno A. Silva, Nelson J. Muga, André Souto, Nikola Paunković, Paulo Mateus, Armando N. Pinto
<span title="2020-06-12">2020</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/smrngspzhzce7dy6ofycrfxbim" style="color: black;">Applied Sciences</a> </i> &nbsp;
However, secure multiparty computation based on public-key cryptography is limited by the security and efficiency of the oblivious transfer implementation.  ...  We present a method to generate and distribute oblivious keys by exchanging qubits and by performing commitments using classical hash functions.  ...  Indeed, we need to consider universally composable commitment scheme instead of π COMH .  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/app10124080">doi:10.3390/app10124080</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/5skqgy2jqzf3ndtdeurk7deypm">fatcat:5skqgy2jqzf3ndtdeurk7deypm</a> </span>
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Round-Efficient Oblivious Database Manipulation [chapter]

Sven Laur, Jan Willemson, Bingsheng Zhang
<span title="">2011</span> <i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
Secondly, we show that the round complexity τ bd of a bit decomposition protocol can be almost matched with oblivious transfer, and that there exists an oblivious transfer protocol with O(τ bd log * n)  ...  In this paper, we provide efficient protocols for oblivious selection, filtering and shuffle-essential tools in privacy-preserving data analysis.  ...  Acknowledgments This research was supported by Estonian Science Foundation grant #8058, the European Regional Development Fund through the Estonian Center of Excellence in Computer Science (EXCS), and  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-642-24861-0_18">doi:10.1007/978-3-642-24861-0_18</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/admnnitkqrc3lfeqii7uyg7tsm">fatcat:admnnitkqrc3lfeqii7uyg7tsm</a> </span>
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Generalizing Efficient Multiparty Computation [chapter]

Bernardo M. David, Ryo Nishimaki, Samuel Ranellucci, Alain Tapp
<span title="">2015</span> <i title="Springer International Publishing"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
We focus on generalizing constructions of Batch Single-Choice Cut-And-Choose Oblivious Transfer and Multi-sender k-out-of-n Oblivious Transfer, which are at the core of efficient secure computation constructions  ...  -Structure Preserving Oblivious Transfer (SPOT) and a generic composable constructions of Verifiable Oblivious Transfer: We introduce SPOT, which is basically a 1-out-of-2 OT compatible with GS-Proofs  ...  For every universally composable structure preserving oblivious transfer protocol π SP OT and every universally composable structure preserving commitment scheme π Com , Protocol π V OT securely realizes  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-319-17470-9_2">doi:10.1007/978-3-319-17470-9_2</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/oaentr4q2rfkffld2zfkit442a">fatcat:oaentr4q2rfkffld2zfkit442a</a> </span>
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Generation and Distribution of Quantum Oblivious Keys for Secure Multiparty Computation [article]

Mariano Lemus, Mariana F. Ramos, Preeti Yadav, Nuno A. Silva, Nelson J. Muga, Andre Souto, Nikola Paunkovic, Paulo Mateus, Armando N. Pinto
<span title="2019-09-25">2019</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
We present a method to efficiently and securely generate and distribute oblivious keys by exchanging qubits and by performing commitments using classical hash functions.  ...  The oblivious distributed keys allow implementing a fast and secure oblivious transfer protocol, which can pave the way for the widespread of applications based on secure multiparty computation.  ...  Acknowledgments This work is supported by FCT through national funds, by FEDER, COMPETE 2020, and by Regional Op  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1909.11701v1">arXiv:1909.11701v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/mlxf5vxzi5gutfeffjugygezo4">fatcat:mlxf5vxzi5gutfeffjugygezo4</a> </span>
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Post-quantum Universal Composable OT Based on Key Exchange

Hangchao Ding, Han Jiang, Qiuliang Xu
<span title="">2020</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/q7qi7j4ckfac7ehf3mjbso4hne" style="color: black;">IEEE Access</a> </i> &nbsp;
We construct a universal composable framework for two-message oblivious transfer protocols based on lattice-assumption.  ...  So we mainly consider non-adaptively malicious adversary in Oblivious Transfer protocols.  ...  Garay and Mackenzie extend committed oblivious transfer to obtain ECOT (extended committed oblivious transfer), which can achieve security in universal composable model.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/access.2020.3014165">doi:10.1109/access.2020.3014165</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/37j3hz2nardupa4fyphcbtsnmq">fatcat:37j3hz2nardupa4fyphcbtsnmq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20210717101655/https://ieeexplore.ieee.org/ielx7/6287639/8948470/09157867.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/e3/e0/e3e0359808502514104f3e9b615dcca17d020426.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/access.2020.3014165"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> ieee.com </button> </a>

Secure Two-Party Computation via Cut-and-Choose Oblivious Transfer [chapter]

Yehuda Lindell, Benny Pinkas
<span title="">2011</span> <i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
We provide an exact, concrete analysis of the efficiency of our scheme and demonstrate that (at least for not very small circuits) our protocol is more efficient than any other known today.  ...  Relying on specific assumptions (DDH), we construct a protocol that is significantly more efficient and far simpler than the protocol of Lindell and Pinkas (Eurocrypt 2007) that follows the same methodology  ...  Acknowledgements We thank Bo Zhang for pointing out an error in the single-choice cut-and-choose oblivious transfer protocol in an earlier version of this work.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-642-19571-6_20">doi:10.1007/978-3-642-19571-6_20</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/hc7btm5r2vdsnd7qdnm6izcydy">fatcat:hc7btm5r2vdsnd7qdnm6izcydy</a> </span>
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Universally Composable Adaptive Oblivious Transfer [chapter]

Matthew Green, Susan Hohenberger
<span title="">2008</span> <i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
In this work, we present an efficient and UC-secure adaptive k-out-of-N OT protocol in the same model as Peikert et al., where after an initial commitment to the database, the cost of each transfer is  ...  These protocols, however, all use standard rewinding techniques in their proofs of security and thus are not universally composable.  ...  Universal Composability: The Universal Composability framework [13] allows for the design of concurrent and composable cryptographic protocols, which are important properties in any practical deployment  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-540-89255-7_12">doi:10.1007/978-3-540-89255-7_12</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/cyfbqlditfakjpxhrbuh5nkdme">fatcat:cyfbqlditfakjpxhrbuh5nkdme</a> </span>
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Randomized Oblivious Transfer for Secure Multiparty Computation in the Quantum Setting

Bruno Costa, Pedro Branco, Manuel Goulão, Mariano Lemus, Paulo Mateus
<span title="2021-07-31">2021</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/4d3elkqvznfzho6ki7a35bt47u" style="color: black;">Entropy</a> </i> &nbsp;
Therefore, analyzing the security in the universal composability framework becomes mandatory when dealing with multi-party computation protocols composed of oblivious transfer subroutines.  ...  Techniques that allow one to extend a small number of oblivious transfers into a larger one in an efficient way make use of the oblivious transfer variant called randomized oblivious transfer.  ...  Finally, as was shown in Theorem 2, π OT→ROT with ideal commitments and an ideal OT is universally composable.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/e23081001">doi:10.3390/e23081001</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/kxm5vfzaarbz3kcudtg6jnyriu">fatcat:kxm5vfzaarbz3kcudtg6jnyriu</a> </span>
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Privacy-Preserving Data Mining in Presence of Covert Adversaries [chapter]

Atsuko Miyaji, Mohammad Shahriar Rahman
<span title="">2010</span> <i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
Furthermore, our protocols are secure in Universal Composability framework.  ...  In this paper, for the first time in data-mining area, we build efficient and secure dot product and set-intersection protocols in covert adversarial model.  ...  Furthermore, our protocols are secure in Universal Composability framework.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-642-17316-5_41">doi:10.1007/978-3-642-17316-5_41</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/6unizehclbgvddh2jz37xp2c2i">fatcat:6unizehclbgvddh2jz37xp2c2i</a> </span>
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On the Feasibility of Consistent Computations [chapter]

Sven Laur, Helger Lipmaa
<span title="">2010</span> <i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
As a concrete practical contribution, we show how to implement consistent versions of several important cryptographic protocols such as oblivious transfer, conditional disclosure of secrets and private  ...  This potential leakage is often compensated by gains in efficiency-many standard zero-knowledge proof steps can be omitted.  ...  Many efficient protocols for oblivious transfer [30, 1, 22] and CDS [1, 21] are based on homomorphic encryption.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-642-13013-7_6">doi:10.1007/978-3-642-13013-7_6</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/342ngsug6ndengm7hcqamuywx4">fatcat:342ngsug6ndengm7hcqamuywx4</a> </span>
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A Construction for General and Efficient Oblivious Commitment Based Envelope Protocols [chapter]

Jiangtao Li, Ninghui Li
<span title="">2006</span> <i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
Compared with previous OCBE protocols, our construction is more general, more efficient, and has wide applicability.  ...  Recently, Li and Li [20] proposed a cryptographic primitive called Oblivious Commitment Based Envelope (OCBE) that enables oblivious access control; that is, it enables attribute-based access control without  ...  Acknowledgement This work is supported by NSF IIS-0430274, NSF CCR-0325951, and sponsors of CE-RIAS. We thank the anonymous reviewers for their helpful comments.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/11935308_10">doi:10.1007/11935308_10</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/otv44vbmmrcmliuvpextf3zpzq">fatcat:otv44vbmmrcmliuvpextf3zpzq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20120119194237/http://homes.cerias.purdue.edu/~jtli/paper/icics06.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/d4/3c/d43c74f78d892c7f997e9ca02daf89f20cd0dc0b.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/11935308_10"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Universally Composable Efficient Priced Oblivious Transfer from a Flexible Membership Encryption [chapter]

Pratish Datta, Ratna Dutta, Sourav Mukhopadhyay
<span title="">2014</span> <i title="Springer International Publishing"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
Keywords: membership encryption, priced oblivious transfer, universally composable security, bilinear maps, non-interactive proof of knowledge, P-Signature, non-interactive range proof.  ...  the universally composable (UC) security model and thus preserves security when it is executed with multiple protocol instances that run concurrently in an adversarily controlled way.  ...  Afterwards, a number of universally composable (UC)-secure priced oblivious transfer protocols have been proposed [19] , [10] , [20] .  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-319-08344-5_7">doi:10.1007/978-3-319-08344-5_7</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/vwbwkedgzrbdjhoexadnhiwe74">fatcat:vwbwkedgzrbdjhoexadnhiwe74</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20160310072545/http://eprint.iacr.org/2014/584.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/8e/95/8e956318d843a7fa3285121fd33a34f906e8bdd4.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-319-08344-5_7"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Somewhat Non-committing Encryption and Efficient Adaptively Secure Oblivious Transfer [chapter]

Juan A. Garay, Daniel Wichs, Hong-Sheng Zhou
<span title="">2009</span> <i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
Indeed, we showcase our methodology by applying it to the recent Oblivious Transfer protocol by Peikert et al.  ...  [Crypto 2008], which is only secure against static corruptions, to obtain the first efficient, adaptively secure and composable OT protocol.  ...  We thank Ran Canetti, Yevgeniy Dodis, Yuval Ishai, Stas Jarecki, and Aggelos Kiayias for useful discussions. We also thank the anonymous referees for their constructive comments.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-642-03356-8_30">doi:10.1007/978-3-642-03356-8_30</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/r6cuynclera67nj22acjec2n44">fatcat:r6cuynclera67nj22acjec2n44</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180727072740/https://link.springer.com/content/pdf/10.1007%2F978-3-642-03356-8_30.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/f3/4b/f34b6f48af4a4af1c7c5c77bbb771ea6021d8e69.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-642-03356-8_30"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>
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