Qiang G, Qi X, Fan Z. VB-CP-ABE: An Improved CP-ABE Scheme Based on Blockchain Collaboration and Fine-Grained Version Control. JCEIM [Internet]. 2026 Feb. 28 [cited 2026 Feb. 28];20(2):18-24. Available from: https://jceim.org/index.php/ojs/article/view/153