{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T14:44:19Z","timestamp":1740149059072,"version":"3.37.3"},"reference-count":40,"publisher":"Wiley","license":[{"start":{"date-parts":[[2021,3,25]],"date-time":"2021-03-25T00:00:00Z","timestamp":1616630400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004663","name":"Ministry of Science and Technology, Taiwan","doi-asserted-by":"publisher","award":["MOST 107-2221-E-415-001-MY3"],"award-info":[{"award-number":["MOST 107-2221-E-415-001-MY3"]}],"id":[{"id":"10.13039\/501100004663","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Security and Communication Networks"],"published-print":{"date-parts":[[2021,3,25]]},"abstract":"<jats:p>Although encryption and signatures have been two fundamental technologies for cryptosystems, they still receive considerable attention in academia due to the focus on reducing computational costs and communication overhead. In the past decade, applying certificateless signcryption schemes to solve the higher cost of maintaining the certificate chain issued by a certificate authority (CA) has been studied. With the recent increase in the interest in blockchains, signcryption is being revisited as a new possibility. The concepts of a blockchain as a CA and a transaction as a certificate proposed in this paper aim to use a blockchain without CAs or a trusted third party (TTP). The proposed provably secure signcryption scheme implements a designated recipient beforehand such that a sender can cryptographically facilitate the interoperation on the blockchain information with the designated recipient. Thus, the proposed scheme benefits from the following advantages: (1) it removes the high maintenance cost from involving CAs or a TTP, (2) it seamlessly integrates with blockchains, and (3) it provides confidential transactions. This paper also presents the theoretical security analysis and assesses the performance via the simulation results. Upon evaluating the operational cost in real currency based on Ethereum, the experimental results demonstrate that the proposed scheme only requires a small cost as a fee.<\/jats:p>","DOI":"10.1155\/2021\/6637402","type":"journal-article","created":{"date-parts":[[2021,3,26]],"date-time":"2021-03-26T17:50:07Z","timestamp":1616781007000},"page":"1-13","source":"Crossref","is-referenced-by-count":1,"title":["Blockchain as a CA: A Provably Secure Signcryption Scheme Leveraging Blockchains"],"prefix":"10.1155","volume":"2021","author":[{"given":"Tzung-Her","family":"Chen","sequence":"first","affiliation":[{"name":"Department of Computer Science and Information Engineering, National Chiayi University, Chiayi 60004, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ting-Le","family":"Zhu","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Information Engineering, National Chiayi University, Chiayi 60004, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fuh-Gwo","family":"Jeng","sequence":"additional","affiliation":[{"name":"Department of Applied Mathematics, National Chiayi University, Chiayi 60004, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8509-4223","authenticated-orcid":true,"given":"Chien-Lung","family":"Wang","sequence":"additional","affiliation":[{"name":"Information Security Research Center, National Chung Hsing University, Taichung 40227, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"first-page":"165","article-title":"Digital signcryption or how to achieve cost (signature & encryption) << cost(signature) plus cost (encryption)","author":"Y. L. Zheng","key":"1"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1007\/s00145-007-0211-0"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1016\/j.mcm.2011.06.043"},{"issue":"4","key":"4","doi-asserted-by":"crossref","first-page":"2904","DOI":"10.1109\/JIOT.2017.2741580","article-title":"Provably secure identity-based signcryption scheme for crowdsourced industrial Internet of Things environments","volume":"5","author":"A. Karati","year":"2017","journal-title":"IEEE Internet of Things Journal"},{"article-title":"Identity-based signcryption","year":"2002","author":"J. Malone-Lee","key":"5"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1016\/j.ins.2014.05.034"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1016\/j.csi.2007.10.014"},{"first-page":"369","article-title":"Certificateless signcryption","author":"M. Barbosa","key":"8"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1016\/j.future.2016.12.036"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1016\/j.mcm.2012.06.011"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1016\/j.ins.2009.10.011"},{"key":"12","doi-asserted-by":"publisher","DOI":"10.1007\/s11277-015-2864-6"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1007\/s11277-016-3554-8"},{"key":"14","doi-asserted-by":"publisher","DOI":"10.1007\/s10623-012-9734-y"},{"key":"15","doi-asserted-by":"publisher","DOI":"10.1007\/s11277-017-4995-4"},{"key":"16","doi-asserted-by":"publisher","DOI":"10.1109\/jiot.2019.2939204"},{"issue":"8","key":"17","doi-asserted-by":"crossref","first-page":"1178","DOI":"10.1093\/comjnl\/bxz041","article-title":"Efficient certificateless signcryption in the standard model: revisiting Luo and Wan\u2019s scheme from wireless personal communications","volume":"62","author":"P. Rastegari","year":"2019","journal-title":"The Computer Journal"},{"key":"18","article-title":"Identity-based cryptosystems and signature schemes","volume-title":"Workshop on the Theory and Application of Cryptographic Techniques","author":"A. Shamir","year":"1984"},{"first-page":"213","article-title":"Identity-based encryption from the Weil pairing,","author":"D. Boneh","key":"19"},{"key":"20","first-page":"452","article-title":"Certificateless public key cryptography","volume-title":"International Conference on the Theory and Application of Cryptology and Information Security","author":"S. S. Al-Riyami","year":"2003"},{"volume-title":"Bitcoin: A Peer-To-Peer Electronic Cash System","year":"2008","author":"S. Nakamoto","key":"21"},{"volume-title":"Ethereum White Paper","year":"2013","author":"V. Buterin","key":"22"},{"key":"23","article-title":"Architecture of the Hyperledger blockchain fabric","volume-title":"Workshop on Distributed Cryptocurrencies and Consensus Ledgers","author":"C. Cachin","year":"2016"},{"key":"24","doi-asserted-by":"publisher","DOI":"10.1109\/access.2017.2730843"},{"key":"25","doi-asserted-by":"publisher","DOI":"10.1109\/access.2020.2982964"},{"key":"26","doi-asserted-by":"publisher","DOI":"10.1109\/access.2020.2995917"},{"key":"27","doi-asserted-by":"crossref","first-page":"58800","DOI":"10.1109\/ACCESS.2020.2982542","article-title":"xDBAuth: blockchain based cross domain authentication and authorization framework for Internet of Things","volume":"8","author":"A. Gauhar","year":"2020","journal-title":"IEEE Access"},{"key":"28","doi-asserted-by":"publisher","DOI":"10.1109\/access.2020.2992467"},{"key":"29","doi-asserted-by":"publisher","DOI":"10.1109\/access.2020.2987831"},{"key":"30","doi-asserted-by":"publisher","DOI":"10.1109\/access.2020.2968621"},{"key":"31","doi-asserted-by":"publisher","DOI":"10.1109\/access.2020.2980298"},{"author":"Wiki","key":"32","article-title":"Elliptic curve digital signature algorithm"},{"key":"33","doi-asserted-by":"publisher","DOI":"10.1090\/s0025-5718-1987-0866109-5"},{"key":"34","article-title":"SEC 2: recommended elliptic curve domain parameters","volume-title":"Standards for Efficient Cryptography Group (SECG)","author":"D. R. L. Brown","year":"2010"},{"key":"35","volume-title":"Applied Cryptography","author":"B. Schneier","year":"1996","edition":"2nd"},{"key":"36","doi-asserted-by":"publisher","DOI":"10.1109\/access.2020.2968985"},{"key":"37","doi-asserted-by":"publisher","DOI":"10.1016\/j.ins.2018.03.053"},{"key":"38"},{"key":"39"},{"key":"40","doi-asserted-by":"publisher","DOI":"10.1109\/tit.1976.1055638"}],"container-title":["Security and Communication Networks"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/scn\/2021\/6637402.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/scn\/2021\/6637402.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/scn\/2021\/6637402.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,3,26]],"date-time":"2021-03-26T17:50:20Z","timestamp":1616781020000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.hindawi.com\/journals\/scn\/2021\/6637402\/"}},"subtitle":[],"editor":[{"given":"Kaitai","family":"Liang","sequence":"additional","affiliation":[],"role":[{"role":"editor","vocabulary":"crossref"}]}],"short-title":[],"issued":{"date-parts":[[2021,3,25]]},"references-count":40,"alternative-id":["6637402","6637402"],"URL":"https:\/\/doi.org\/10.1155\/2021\/6637402","relation":{},"ISSN":["1939-0122","1939-0114"],"issn-type":[{"type":"electronic","value":"1939-0122"},{"type":"print","value":"1939-0114"}],"subject":[],"published":{"date-parts":[[2021,3,25]]}}}