{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T18:58:46Z","timestamp":1770749926790,"version":"3.50.0"},"reference-count":29,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T00:00:00Z","timestamp":1769904000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T00:00:00Z","timestamp":1769904000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61762039"],"award-info":[{"award-number":["61762039"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Concurrency and Computation"],"published-print":{"date-parts":[[2026,2]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>To address the challenges of coarse\u2010grained access control, collusion attack risks, and massive data storage issues in cross\u2010departmental traffic data sharing within Intelligent Transportation Systems (ITS) scenarios, this study proposes an Attribute\u2010Based Conditional Proxy Re\u2010Encryption (AB\u2010CPRE) scheme integrated with blockchain technology. This scheme employs a conditional proxy re\u2010encryption mechanism to achieve fine\u2010grained access control based on device attributes and access policies, thereby defending against collusion attacks by proxy nodes and malicious users. By combining the distributed ledger of blockchain and IPFS's distributed storage of IPFS, a verifiable system is constructed that includes ciphertext hashes, a complete set of device attributes, and operational conditions. This ensures data integrity while reducing the computational and storage pressure on edge servers. Security analysis demonstrates that the scheme satisfies adaptive IND\u2010CCA security under the standard model, and performance evaluation indicates significant improvements in computational efficiency and communication overhead compared with similar schemes.<\/jats:p>","DOI":"10.1002\/cpe.70576","type":"journal-article","created":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T04:03:05Z","timestamp":1770004985000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Blockchain\u2010Based Attribute\u2010Based Conditional Proxy Re\u2010Encryption Scheme"],"prefix":"10.1002","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1611-9017","authenticated-orcid":false,"given":"Tao","family":"Feng","sequence":"first","affiliation":[{"name":"College of Computer Science and Artificial Intelligence Lanzhou University of Technology  Lanzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-8355-2585","authenticated-orcid":false,"given":"Xuebin","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Computer Science and Artificial Intelligence Lanzhou University of Technology  Lanzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chunyan","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Economics and Management Lanzhou University of Technology  Lanzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Buzhen","family":"He","sequence":"additional","affiliation":[{"name":"College of Computer Science and Artificial Intelligence Lanzhou University of Technology  Lanzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2026,2]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"crossref","unstructured":"A.SahaiandB.Waters \u201cFuzzy identity\u2010based encryption \u201d2005 457\u2013473.","DOI":"10.1007\/11426639_27"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/TIFS.2014.2309858"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1109\/TC.2020.3043950"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.1109\/TII.2022.3167842"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.future.2013.09.013"},{"key":"e_1_2_12_7_1","doi-asserted-by":"crossref","first-page":"159002","DOI":"10.1109\/ACCESS.2019.2950394","article-title":"Multi\u2010Authority Non\u2010Monotonic KP\u2010ABE With Cryptographic Reverse Firewall","volume":"7","author":"Hong B.","year":"2019","journal-title":"IEEE Access"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2019.2961633"},{"key":"e_1_2_12_9_1","first-page":"1","article-title":"A Survey of Proxy Re\u2010Encryption for Secure Data Sharing in Cloud Computing","author":"Qin Z.","year":"2016","journal-title":"IEEE Transactions on Services Computing"},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jnca.2017.03.005"},{"key":"e_1_2_12_11_1","doi-asserted-by":"crossref","unstructured":"V.Goyal O.Pandey A.Sahai andB.Waters \u201cAttribute\u2010Based Encryption for Fine\u2010Grained Access Control of Encrypted Data \u201d2006 CCS '06 New York NY USA.","DOI":"10.1145\/1180405.1180418"},{"key":"e_1_2_12_12_1","doi-asserted-by":"crossref","unstructured":"J.Bethencourt A.Sahai andB.Waters \u201cCiphertext\u2010Policy Attribute\u2010Based Encryption \u201d2007.","DOI":"10.1109\/SP.2007.11"},{"key":"e_1_2_12_13_1","doi-asserted-by":"crossref","unstructured":"X.Liang Z.Cao H.Lin andJ.Shao \u201cAttribute Based Proxy Re\u2010Encryption with Delegating Capabilities \u201d2009.","DOI":"10.1145\/1533057.1533094"},{"key":"e_1_2_12_14_1","doi-asserted-by":"crossref","unstructured":"K.Liang L.Fang W.Susilo andD. S.Wong \u201cA Ciphertext\u2010Policy Attribute\u2010Based Proxy Re\u2010Encryption with Chosen\u2010Ciphertext Security \u201d2013.","DOI":"10.1109\/INCoS.2013.103"},{"issue":"5","key":"e_1_2_12_15_1","doi-asserted-by":"crossref","first-page":"2907","DOI":"10.1109\/TDSC.2021.3076580","article-title":"A Verifiable and Fair Attribute\u2010Based Proxy Re\u2010Encryption Scheme for Data Sharing in Clouds","volume":"19","author":"Ge C.","year":"2022","journal-title":"IEEE Transactions on Dependable and Secure Computing"},{"key":"e_1_2_12_16_1","doi-asserted-by":"publisher","DOI":"10.1515\/jmc-2020-0039"},{"key":"e_1_2_12_17_1","doi-asserted-by":"crossref","unstructured":"C.Ge W.Susilo Z.Liu J.Baek X.Luo andL.Fang \u201cAttribute\u2010Based Proxy Re\u2010Encryption with Direct Revocation Mechanism for Data Sharing in Clouds \u201d2023.","DOI":"10.1145\/3603165.3607460"},{"issue":"1","key":"e_1_2_12_18_1","doi-asserted-by":"crossref","first-page":"584","DOI":"10.1109\/TCE.2023.3346028","article-title":"dAPRE:Efficient and Reliable Attribute\u2010Based Proxy Re\u2010Encryption Using DAG for Data Sharing in IoT","volume":"70","author":"Li X.","year":"2024","journal-title":"IEEE Transactions on Consumer Electronics"},{"key":"e_1_2_12_19_1","doi-asserted-by":"crossref","unstructured":"J.Weng Y.Yang Q.Tang R. H.Deng andF.Bao \u201cEfficient Conditional Proxy Re\u2010encryption with Chosen\u2010Ciphertext Security \u201d2009Berlin Heidelberg.","DOI":"10.1007\/978-3-642-04474-8_13"},{"key":"e_1_2_12_20_1","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2021.3064863"},{"key":"e_1_2_12_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpdc.2024.104956"},{"key":"e_1_2_12_22_1","doi-asserted-by":"publisher","DOI":"10.3390\/electronics12030677"},{"key":"e_1_2_12_23_1","doi-asserted-by":"publisher","DOI":"10.1109\/JPROC.2024.3386257"},{"key":"e_1_2_12_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijresmar.2022.08.004"},{"key":"e_1_2_12_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.compind.2022.103789"},{"key":"e_1_2_12_26_1","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2024.3401591"},{"issue":"7","key":"e_1_2_12_27_1","doi-asserted-by":"crossref","first-page":"267","DOI":"10.23919\/JCC.fa.2022-0863.202407","article-title":"A Blockchain\u2010Based Proxy re\u2010Encryption Scheme With Conditional Privacy Protection and Auditability","volume":"21","author":"Guo C.","year":"2024","journal-title":"China Communications"},{"key":"e_1_2_12_28_1","doi-asserted-by":"crossref","DOI":"10.7717\/peerj-cs.1678","article-title":"A Secure Cross\u2010Domain Interaction Scheme for Blockchain\u2010Based Intelligent Transportation Systems","volume":"9","author":"Si H.","year":"2023","journal-title":"PeerJ Computer Science"},{"key":"e_1_2_12_29_1","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2023.3322637"},{"key":"e_1_2_12_30_1","doi-asserted-by":"publisher","DOI":"10.1109\/TCE.2023.3323356"}],"container-title":["Concurrency and Computation: Practice and Experience"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/cpe.70576","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/cpe.70576","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/cpe.70576","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T03:07:54Z","timestamp":1770260874000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/cpe.70576"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,2]]},"references-count":29,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2026,2]]}},"alternative-id":["10.1002\/cpe.70576"],"URL":"https:\/\/doi.org\/10.1002\/cpe.70576","archive":["Portico"],"relation":{},"ISSN":["1532-0626","1532-0634"],"issn-type":[{"value":"1532-0626","type":"print"},{"value":"1532-0634","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,2]]},"assertion":[{"value":"2025-09-01","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-01-10","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-02-01","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e70576"}}