Obfuscating encrypted threshold signature algorithm and its applications in cloud computing
Current cloud computing causes serious restrictions to safeguarding users' data privacy. Since users' sensitive data is submitted in unencrypted forms to remote machines possessed and operated by untrusted service providers, users' sensitive data may be leaked by service providers. Pr...
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| Veröffentlicht in: | PloS one 2021-04, Vol.16 (4), p.e0250259-e0250259 |
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| creator | Li, Yahong Wei, Jianzhou Wu, Bin Wang, Chunli Wang, Caifen Zhang, Yulei Yang, Xiaodong |
| description | Current cloud computing causes serious restrictions to safeguarding users' data privacy. Since users' sensitive data is submitted in unencrypted forms to remote machines possessed and operated by untrusted service providers, users' sensitive data may be leaked by service providers. Program obfuscation shows the unique advantages that it can provide for cloud computing. In this paper, we construct an encrypted threshold signature functionality, which can outsource the threshold signing rights of users to cloud server securely by applying obfuscation, while revealing no more sensitive information. The obfuscator is proven to satisfy the average case virtual black box property and existentially unforgeable under the decisional linear (DLIN) assumption and computational Diffie-Hellman (CDH) assumption in the standard model. Moreover, we implement our scheme using the Java pairing-based cryptography library on a laptop. |
| doi_str_mv | 10.1371/journal.pone.0250259 |
| format | Article |
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Since users' sensitive data is submitted in unencrypted forms to remote machines possessed and operated by untrusted service providers, users' sensitive data may be leaked by service providers. Program obfuscation shows the unique advantages that it can provide for cloud computing. In this paper, we construct an encrypted threshold signature functionality, which can outsource the threshold signing rights of users to cloud server securely by applying obfuscation, while revealing no more sensitive information. The obfuscator is proven to satisfy the average case virtual black box property and existentially unforgeable under the decisional linear (DLIN) assumption and computational Diffie-Hellman (CDH) assumption in the standard model. Moreover, we implement our scheme using the Java pairing-based cryptography library on a laptop.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0250259</identifier><identifier>PMID: 33861767</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Algorithms ; Cloud computing ; Computer and Information Sciences ; Computer programs ; Computer science ; Confidentiality ; Cryptography ; Data encryption ; Data security ; Engineering ; Engineering and Technology ; Management ; Methods ; Personal computers ; Physical Sciences ; Privacy ; Research and Analysis Methods ; Safety and security measures ; Servers</subject><ispartof>PloS one, 2021-04, Vol.16 (4), p.e0250259-e0250259</ispartof><rights>COPYRIGHT 2021 Public Library of Science</rights><rights>2021 Li et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2021 Li et al 2021 Li et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c692t-7cfdfa7209e8476e1d4f35b05ec42b33f959d9969c8a646286d2be0f75e5f2a23</citedby><cites>FETCH-LOGICAL-c692t-7cfdfa7209e8476e1d4f35b05ec42b33f959d9969c8a646286d2be0f75e5f2a23</cites><orcidid>0000-0002-0912-5606</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8051800/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8051800/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,2928,23866,27924,27925,53791,53793,79600,79601</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33861767$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Shi, Wenbo</contributor><creatorcontrib>Li, Yahong</creatorcontrib><creatorcontrib>Wei, Jianzhou</creatorcontrib><creatorcontrib>Wu, Bin</creatorcontrib><creatorcontrib>Wang, Chunli</creatorcontrib><creatorcontrib>Wang, Caifen</creatorcontrib><creatorcontrib>Zhang, Yulei</creatorcontrib><creatorcontrib>Yang, Xiaodong</creatorcontrib><title>Obfuscating encrypted threshold signature algorithm and its applications in cloud computing</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Current cloud computing causes serious restrictions to safeguarding users' data privacy. Since users' sensitive data is submitted in unencrypted forms to remote machines possessed and operated by untrusted service providers, users' sensitive data may be leaked by service providers. Program obfuscation shows the unique advantages that it can provide for cloud computing. In this paper, we construct an encrypted threshold signature functionality, which can outsource the threshold signing rights of users to cloud server securely by applying obfuscation, while revealing no more sensitive information. The obfuscator is proven to satisfy the average case virtual black box property and existentially unforgeable under the decisional linear (DLIN) assumption and computational Diffie-Hellman (CDH) assumption in the standard model. Moreover, we implement our scheme using the Java pairing-based cryptography library on a laptop.</description><subject>Algorithms</subject><subject>Cloud computing</subject><subject>Computer and Information Sciences</subject><subject>Computer programs</subject><subject>Computer science</subject><subject>Confidentiality</subject><subject>Cryptography</subject><subject>Data encryption</subject><subject>Data security</subject><subject>Engineering</subject><subject>Engineering and Technology</subject><subject>Management</subject><subject>Methods</subject><subject>Personal computers</subject><subject>Physical Sciences</subject><subject>Privacy</subject><subject>Research and Analysis Methods</subject><subject>Safety and security 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Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Yahong</au><au>Wei, Jianzhou</au><au>Wu, Bin</au><au>Wang, Chunli</au><au>Wang, Caifen</au><au>Zhang, Yulei</au><au>Yang, Xiaodong</au><au>Shi, Wenbo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Obfuscating encrypted threshold signature algorithm and its applications in cloud computing</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2021-04-16</date><risdate>2021</risdate><volume>16</volume><issue>4</issue><spage>e0250259</spage><epage>e0250259</epage><pages>e0250259-e0250259</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Current cloud computing causes serious restrictions to safeguarding users' data privacy. Since users' sensitive data is submitted in unencrypted forms to remote machines possessed and operated by untrusted service providers, users' sensitive data may be leaked by service providers. Program obfuscation shows the unique advantages that it can provide for cloud computing. In this paper, we construct an encrypted threshold signature functionality, which can outsource the threshold signing rights of users to cloud server securely by applying obfuscation, while revealing no more sensitive information. The obfuscator is proven to satisfy the average case virtual black box property and existentially unforgeable under the decisional linear (DLIN) assumption and computational Diffie-Hellman (CDH) assumption in the standard model. Moreover, we implement our scheme using the Java pairing-based cryptography library on a laptop.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>33861767</pmid><doi>10.1371/journal.pone.0250259</doi><tpages>e0250259</tpages><orcidid>https://orcid.org/0000-0002-0912-5606</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Algorithms Cloud computing Computer and Information Sciences Computer programs Computer science Confidentiality Cryptography Data encryption Data security Engineering Engineering and Technology Management Methods Personal computers Physical Sciences Privacy Research and Analysis Methods Safety and security measures Servers |
| title | Obfuscating encrypted threshold signature algorithm and its applications in cloud computing |
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