{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T10:42:44Z","timestamp":1777372964420,"version":"3.51.4"},"reference-count":54,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2018,11,2]],"date-time":"2018-11-02T00:00:00Z","timestamp":1541116800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002858","name":"China Postdoctoral Science Foundation","doi-asserted-by":"publisher","award":["2017M610817"],"award-info":[{"award-number":["2017M610817"]}],"id":[{"id":"10.13039\/501100002858","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61662069, 444 61672020 and 61472433"],"award-info":[{"award-number":["61662069, 444 61672020 and 61472433"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Xiaodong Yang","award":["2013-4-22"],"award-info":[{"award-number":["2013-4-22"]}]},{"name":"Xiaodong Yang","award":["NWNU-LKQN-14-7"],"award-info":[{"award-number":["NWNU-LKQN-14-7"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>With the rapid popularization of the Internet of Things (IoT) in our daily lives, the communication security and identity privacy of IoT devices must be ensured. However, traditional authentication mechanisms utilized in IoT cannot completely ensure a user\u2019s privacy when his\/her messages are routed via an untrusted intermediate device. Strong designated-verifier proxy re-signature (SDVPRS) is a new cryptographic technology that combines the advantages of strong designated verifier signature and proxy re-signature. Therefore, SDVPRS is considered to be a better approach to maintain data integrity and protect the identity privacy of the signer in a resource-limited IoT device. Nevertheless, designing a secure SDVPRS scheme without random oracles is still a challenging task. In this paper, we mainly focus on such a construction by providing a new method. We first provide the formal definition of SDVPRS and its security model. Then, we present the first SDVPRS scheme, which is bidirectional, multi-use and non-transferable, and we prove its security under the standard complexity assumptions in the standard model. The analysis results show that our SDVPRS scheme can not only protect the privacy of the signer\u2019s identity, but also provide non-delegatability for signature verification. We present an example of potential application to environmental monitoring systems using our SDVPRS scheme.<\/jats:p>","DOI":"10.3390\/sym10110580","type":"journal-article","created":{"date-parts":[[2018,11,5]],"date-time":"2018-11-05T04:26:39Z","timestamp":1541391999000},"page":"580","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["A Strong Designated Verifier Proxy Re-Signature Scheme for IoT Environments"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0382-5943","authenticated-orcid":false,"given":"Xiao-Dong","family":"Yang","sequence":"first","affiliation":[{"name":"College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6857-2767","authenticated-orcid":false,"given":"Li-Kun","family":"Xiao","sequence":"additional","affiliation":[{"name":"College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3541-3310","authenticated-orcid":false,"given":"Chun-Lin","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0759-3251","authenticated-orcid":false,"given":"Cai-Fen","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,11,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1250","DOI":"10.1109\/JIOT.2017.2694844","article-title":"A survey on security and privacy issues in internet-of-things","volume":"4","author":"Yang","year":"2017","journal-title":"IEEE Internet Things J."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"546","DOI":"10.1109\/JIOT.2016.2557487","article-title":"A secure and efficient id-based aggregate signature scheme for wireless sensor networks","volume":"4","author":"Shen","year":"2017","journal-title":"IEEE Internet Things J."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"78","DOI":"10.1016\/j.adhoc.2018.01.001","article-title":"An efficient provably-secure certificateless signature scheme for Internet-of-Things deployment","volume":"71","author":"Jia","year":"2018","journal-title":"Ad Hoc Netw."},{"key":"ref_4","first-page":"80","article-title":"A certificateless aggregate signature scheme for healthcare wireless sensor network","volume":"18","author":"Kumar","year":"2018","journal-title":"Sustain. 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