Zheng, Fang, Xinguang Peng, and Zhidan Li. “An Effective Scheme for Revocation of User Attributes for Data Outsourcing in Cloud Storage”. Contemporary Perspective on Science, Technology and Research Vol. 2 (December 29, 2023): 62–87. Accessed June 21, 2026. https://stm.bookpi.org/CPSTR-V2/article/view/12862.