However Attribute-based encryption (ABE) scheme supports users to acquire access authorization through collaborative works, it meets its limits when it is necessary to consider the different weights of collaboration users. 

Revocable and verifiable weighted attribute-based encryption with collaborative access scheme (RVWABE-CA) may reach this step. Indeed, according to the authors, RVWABE-CA) can provide efficient weighted multi-user collaborative access, user revocation, and data integrity verification.

For more information: https://cybersecurity.springeropen.com/articles/10.1186/s42400-024-00211

Authors: Ximing Li, Hao Wang, Sha Ma, Meiyan Xiao & Qiong Huang