Revocable collaborative access control system based on attributes

Abstract

A innovative system involving the revocation of attribute, user, and collaborative policy was developed to address the dynamic updating of access rights in attribute-based collaborative access control.In addition to changing the group-based attribute group to reflect the updated rights, a formal definition and security model were offered. An effective re-encryption method was then employed to achieve the instantaneous revocation of both users and attributes.By updating the associated ciphertext, the translation value was utilized to accomplish the revocation of the cooperation policy.According to the security analysis, the plan is able to prevent collusion attacks using a selected plaintext assault, provide data confidentiality, and provide forward and backward security.The idea achieved a more comprehensive and effective revocation procedure when compared to related works.