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Fully, (Almost) Tightly Secure IBE and Dual System Groups [chapter]

Jie Chen, Hoeteck Wee
<span title="">2013</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;
Along the way, we introduce a novel notion of dual system groups and a new randomization and parameter-hiding technique for prime-order bilinear groups.  ...  We present the first fully secure Identity-Based Encryption scheme (IBE) from the standard assumptions where the security loss depends only on the security parameter and is independent of the number of  ...  We thank Dennis Hofheinz and the anonymous reviewers for helpful feedback on the write-up.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-642-40084-1_25">doi:10.1007/978-3-642-40084-1_25</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/tpffl4jfjfgr7h3zm2m23nnhza">fatcat:tpffl4jfjfgr7h3zm2m23nnhza</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180728085504/https://link.springer.com/content/pdf/10.1007%2F978-3-642-40084-1_25.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/2e/0e/2e0ee6b025857c44c503ef4699df5bafd000b384.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-642-40084-1_25"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Algebraic Partitioning: Fully Compact and (almost) Tightly Secure Cryptography [chapter]

Dennis Hofheinz
<span title="2015-12-19">2015</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;
assumption, and they are fully compact (in the sense that parameters, keys, and signatures, resp. ciphertexts only comprise a constant number of group elements).  ...  As a demonstration of our technique, we provide the first signature and public-key encryption schemes that achieve the following properties simultaneously: they are (almost) tightly secure under a simple  ...  The author would like to thank Eike Kiltz, Julia Hesse, Willi Geiselmann, and the anonymous reviewers for helpful feedback.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-662-49096-9_11">doi:10.1007/978-3-662-49096-9_11</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/pfsoeey2cfhipmquogydsrq6me">fatcat:pfsoeey2cfhipmquogydsrq6me</a> </span>
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Identity-Based Encryption with (Almost) Tight Security in the Multi-instance, Multi-ciphertext Setting [chapter]

Dennis Hofheinz, Jessica Koch, Christoph Striecks
<span title="">2015</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 construct an identity-based encryption (IBE) scheme that is tightly secure in a very strong sense.  ...  The security loss of our reduction is O(k) (where k is the security parameter). Our scheme is the first IBE scheme to achieve this strong flavor of tightness under a simple assumption.  ...  NDSGs were recently defined by Chen and Wee and enabled to prove the first IBE (almost) tightly and fully secure under simple assumptions.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-662-46447-2_36">doi:10.1007/978-3-662-46447-2_36</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/7ck25hyksjclpkumbqwpbuvnzi">fatcat:7ck25hyksjclpkumbqwpbuvnzi</a> </span>
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A Framework for Identity-Based Encryption with Almost Tight Security [chapter]

Nuttapong Attrapadung, Goichiro Hanaoka, Shota Yamada
<span title="">2015</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;
Then we show that it can be converted into fully, (almost) tightly secure IBE scheme, in the multi-challenge and multi-instance setting.  ...  • Can we construct a fully, (almost) tightly secure IBE scheme from a static assumption with constant-size public parameters even in the single-challenge and single-instance setting?  ...  This requirement is satisfied in all of our IBE schemes except for that in Section 7. If the original IBE and Q-fold OTS scheme are tightly secure, the resulting PKE is tightly secure as well.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-662-48797-6_22">doi:10.1007/978-3-662-48797-6_22</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/lmjyhxngkfch3lcotrunxybde4">fatcat:lmjyhxngkfch3lcotrunxybde4</a> </span>
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Extended Nested Dual System Groups, Revisited [chapter]

Junqing Gong, Jie Chen, Xiaolei Dong, Zhenfu Cao, Shaohua Tang
<span title="">2016</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;
This leads to an almost-tight fully adaptively secure IBE in the same setting with better performance than our first IBE scheme but requires a non-standard assumption, d-linear assumption with auxiliary  ...  Chen and Wee [CW13] combined the dual system technique with the proof idea underlying the Naor-Reingold pseudorandom function [NR04] and achieved the first almost-tight IBE from standard assumption in  ...  The nested dual system group, an variant of dual system groups, was proposed by Chen and Wee [CW13] to reach almost-tight adaptively secure IBE in the standard model. Recently, Gong et al.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-662-49384-7_6">doi:10.1007/978-3-662-49384-7_6</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/nbgaii2dzze7nnqbs45lxymlqu">fatcat:nbgaii2dzze7nnqbs45lxymlqu</a> </span>
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Sequential Aggregate Signatures with Short Public Keys: Design, Analysis and Implementation Studies [chapter]

Kwangsu Lee, Dong Hoon Lee, Moti Yung
<span title="">2013</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;
Technically, we start with a public key signature scheme based on the recent dual system encryption technique of Lewko and Waters.  ...  ., the number of group elements is proportional to the security parameter), and therefore they suggested as an open problem the construction of such a scheme with short keys.  ...  Here we construct a PKS scheme in prime order (asymmetric) bilinear groups which supports aggregation by building on the PKS scheme of Lewko and Waters, and we prove its security using the dual system  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-642-36362-7_26">doi:10.1007/978-3-642-36362-7_26</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/lhnsggbacnhnvmlfkavwuxaemy">fatcat:lhnsggbacnhnvmlfkavwuxaemy</a> </span>
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Adaptive Security of Broadcast Encryption, Revisited

Bingxin Zhu, Puwen Wei, Mingqiang Wang
<span title="">2017</span> <i title="Hindawi Limited"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/sdme5pnua5auzcsjgqmqefb66m" style="color: black;">Security and Communication Networks</a> </i> &nbsp;
The resulting scheme instantiated in a composite order group is MA-secure with constant-size ciphertext header.  ...  In order to construct tighter MA-secure broadcast encryptions, we investigate Gentry and Water's transformation and show that their transformation can preserve MA-security at the price of reduction loss  ...  Hofheinz, Koch, and Striecks [19] extended Chen and Wee's proof technique [20] to the multiuser/multichallenge setting and provided an almost tightly secure identity-based encryption (IBE) in the same  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1155/2017/1404279">doi:10.1155/2017/1404279</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/vkarfnkfgnbdfobfisfmkw7gjm">fatcat:vkarfnkfgnbdfobfisfmkw7gjm</a> </span>
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D6.1: First Annual Operations Report of the Tier-1 Service

Jules Wolfrat
<span title="2012-08-31">2012</span> <i title="Zenodo"> Zenodo </i> &nbsp;
This Tier-1 infrastructure is the continuation of the infrastructure built by previous DEISA projects and is now tightly integrated with the PRACE Tier-0 infrastructure as a result of the efforts of both  ...  last call, starting November 2012, because the system is not available yet.  ...  This is mainly due to the integration of new Tier-1 systems, which is not yet fully completed.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5281/zenodo.6572362">doi:10.5281/zenodo.6572362</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/meqp46oqmzbvjglrajammhyedq">fatcat:meqp46oqmzbvjglrajammhyedq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20220524190215/https://zenodo.org/record/6572362/files/2IP-D6.1.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/07/b3/07b35c4f156d210de48a7aec40c2f9a93ef74cec.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5281/zenodo.6572362"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> zenodo.org </button> </a>

Positional Verbs in Nen

Nicholas Evans
<span title="">2014</span> <i title="Johns Hopkins University Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/rxqkeqhjdbajzpnsfqp6v3syhm" style="color: black;">Oceanic Linguistics</a> </i> &nbsp;
together' wéznés 'put tightly together' ezns 'get stuck tightly' élén 'be lying on back' wélén s 'lay on back' ulén s 'lie down on one's back' Short) † † This vowel can almost be eliminated  ...  plurals, but lawa for duals and small plurals; likewise dar 'be open, be a hole' for singulars and large plurals, but där for duals and small plurals.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1353/ol.2014.0019">doi:10.1353/ol.2014.0019</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/jwenrjbbyfetth6eji5bdbtrlq">fatcat:jwenrjbbyfetth6eji5bdbtrlq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20160725204547/https://digitalcollections.anu.edu.au/bitstream/1885/14019/1/Evans%20Positional%20Verbs%20in%20Nen%202014.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/50/03/500369eb8a62375204fbeae2ddb6a32141430d6c.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1353/ol.2014.0019"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

Support for All in the UK Work Programme? Differential Payments, Same Old Problem [chapter]

James Rees, Adam Whitworth, Elle Carter
<span title="2015-03-13">2015</span> <i title="John Wiley &amp; Sons, Ltd"> Contracting-out Welfare Services </i> &nbsp;
Programme design, particularly via the use of claimant groups and differential pricing.  ...  a combination of intense cost-pressures and extremely ambitious performance targets, alongside overly diverse claimant groups and inadequately calibrated differentiated payment levels.  ...  (ESA) group for recent Incapacity Benefit (IB) claimants.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1002/9781119016458.ch6">doi:10.1002/9781119016458.ch6</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/23zxjh7mpfeu3apdsau5z7ngya">fatcat:23zxjh7mpfeu3apdsau5z7ngya</a> </span>
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Support for All in the UK Work Programme? Differential Payments, Same Old Problem

James Rees, Adam Whitworth, Elle Carter
<span title="2014-03-06">2014</span> <i title="Wiley"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/4qrtewla3feohh7uvzfavr4hqi" style="color: black;">Social Policy &amp; Administration</a> </i> &nbsp;
Incapacity Benefit (IB) is currently being replaced by the Employment and Support Allowance (ESA). 5.  ...  The RAG rating uses a traffic light system to group individuals either as red (hard to move into work), amber (moderately difficult to move into work) or green (easy to move into work).  ...  system in which eligibility for out of work benefits is tied increasingly tightly and explicitly to the stated obligation to seek paid work.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1111/spol.12058">doi:10.1111/spol.12058</a> <a target="_blank" rel="external noopener" href="https://www.ncbi.nlm.nih.gov/pubmed/25411516">pmid:25411516</a> <a target="_blank" rel="external noopener" href="https://pubmed.ncbi.nlm.nih.gov/PMC4211436/">pmcid:PMC4211436</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/ekzufoq37jgx7ihx5jwd5dhezi">fatcat:ekzufoq37jgx7ihx5jwd5dhezi</a> </span>
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Configuration Management Security in Data Center Environments [chapter]

Krishna Kant
<span title="">2011</span> <i title="Springer New York"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/zmddx3pofreuri5ozrik742edy" style="color: black;">Advances in Information Security</a> </i> &nbsp;
The emerging trends of virtualization and outsourcing further increase the scale and complexity of this management.  ...  In this chapter, we focus on the configuration management issues and expose a variety of attack and misconfiguration scenarios, and discuss some approaches to making configuration management more robust  ...  While the number of real devices is limited by monetary, space, power and other considerations, virtual devices can be created at almost no cost.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-1-4614-0977-9_10">doi:10.1007/978-1-4614-0977-9_10</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/f2mujmn6ergh5nhbxsv6ioy2zy">fatcat:f2mujmn6ergh5nhbxsv6ioy2zy</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20140211045818/http://www.kkant.net:80/papers/CM_security_MTD.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/7b/fe/7bfec999776d5e4ef8ea58d8bd011cc50449b64e.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-1-4614-0977-9_10"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Improvements and New Constructions of Digital Signatures

Jessica Koch
<span title="">2019</span>
We mention nested dual system groups [CW13] , which enable to prove the first almost tightly and fully secure IBE scheme in the one instance setting.  ...  Our Contribution We instantiate the first almost tightly and fully secure IBE scheme under a simple (dual system) assumption in composite-order pairing-friendly groups.  ...  Dual system assumption 3 (DS3).  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5445/ir/1000097524">doi:10.5445/ir/1000097524</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/bswwgx2b5jgjfp2jaabfn6zpu4">fatcat:bswwgx2b5jgjfp2jaabfn6zpu4</a> </span>
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Provably Secure Role-Based Encryption with Revocation Mechanism

Yan Zhu, Hong-Xin Hu, Gail-Joon Ahn, Huai-Xi Wang, Shan-Biao Wang
<span title="">2011</span> <i title="Springer Nature"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5acgllsvrbf5dar4dbo3vyrz2a" style="color: black;">Journal of Computer Science and Technology</a> </i> &nbsp;
In contrast to the existing solutions for encrypted file systems, our scheme not only supports dynamic joining and revoking users, but also has shorter ciphertexts and constant-size decryption keys.  ...  each role corresponds to a public group-key that is used to encrypt data.  ...  ., Boneh and Franklin proposed the first fully functional identity-based encryption scheme (IBE) [12] [13] in 2001, in which the public key can be an arbitrary string such as an email address.  ... 
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Public-Key Encryption, Revisited: Tight Security and Richer Functionalities

Romain Gay
<span title="2019-03-01">2019</span> <i title="Zenodo"> Zenodo </i> &nbsp;
In this thesis, we present a new public-key encryption that satisfies a strong security guarantee, that does not degrade with the number of users, and that prevents adversaries from tampering ciphertexts  ...  We also give new functional encryption schemes, whose security relies on well-founded assumptions.  ...  dual system ABE across different predicates and across both composite and prime-order groups.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5281/zenodo.3405872">doi:10.5281/zenodo.3405872</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/ypcfqlzjifephog53uenm4mqm4">fatcat:ypcfqlzjifephog53uenm4mqm4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20201225164411/https://zenodo.org/record/3405873/files/201903-%20PhD%20thesis%20Public%20Key%20Encryption%2C%20Revisited%20Tight%20Security%20and%20Richer%20Functionalities.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/87/0b/870bb5a8573861f5def6ec3ebc63e37875c9d658.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5281/zenodo.3405872"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> zenodo.org </button> </a>
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