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If it is not securely deleted in time or the result of data deletion cannot be verified after their expiration, this will lead to serious issues, such as unauthorized access and data privacy disclosure. Therefore, this affects the security of cloud data and hinders the development of cloud computing services seriously. In this paper, we propose a novel secure data deletion and verification (SDVC) scheme based on CP-ABE to achieve fine-grained secure data deletion and deletion verification for cloud data. Based on the idea of access policy in CP-ABE, we construct an attribute association tree to implement fast revoking attribute and reencrypting key to achieve fine-grained control of secure key deletion. Furthermore, we build a rule transposition algorithm to generate random data blocks and combine the overwriting technology with the Merkle hash tree to implement secure ciphertext deletion and generate a validator, which is then used to verify the result of data deletion. We prove the security of the SDVC scheme under the standard model and verify the correctness and effectiveness of the SDVC scheme through theoretical analysis and ample simulation experiment results.<\/jats:p>","DOI":"10.1155\/2021\/8855341","type":"journal-article","created":{"date-parts":[[2021,3,28]],"date-time":"2021-03-28T17:20:08Z","timestamp":1616952008000},"page":"1-14","source":"Crossref","is-referenced-by-count":13,"title":["CP-ABE-Based Secure and Verifiable Data Deletion in Cloud"],"prefix":"10.1155","volume":"2021","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0187-2236","authenticated-orcid":true,"given":"Jun","family":"Ma","sequence":"first","affiliation":[{"name":"School of Telecommunications Engineering, Xidian University, Xi\u2019an 710071, China"},{"name":"Information Engineering University, Zhengzhou 450001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8330-7627","authenticated-orcid":true,"given":"Minshen","family":"Wang","sequence":"additional","affiliation":[{"name":"Fujian Provincial Key Laboratory of Network Security and Cryptology, College of Mathematics and Informatics, Fujian Normal University, Fuzhou 350117, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9985-1953","authenticated-orcid":true,"given":"Jinbo","family":"Xiong","sequence":"additional","affiliation":[{"name":"Fujian Provincial Key Laboratory of Network Security and Cryptology, College of Mathematics and Informatics, Fujian Normal University, Fuzhou 350117, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5882-9431","authenticated-orcid":true,"given":"Yongjin","family":"Hu","sequence":"additional","affiliation":[{"name":"Information Engineering University, Zhengzhou 450001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1109\/tnse.2018.2848960"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1109\/jiot.2020.2976740"},{"key":"3","first-page":"1","article-title":"Exploiting transfer learning for emotion recognition under cloud-edge-client collaborations","volume":"99","author":"D. 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