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Shobha Chawla
Shobha Chawla

Public Documents 1
Performance Analysis of the Proxy-Based and Collusion Resistant Revocable CPABE Frame...
Shobha Chawla
Neha Gupta

Shobha Chawla

and 1 more

September 26, 2023
Ciphertext Policy Attribute Based Encryption (CPABE) emerged as a trusted solution to enforce access control in an untrusted cloud environment. CPABE allows data owners to implement one-to-many encryptions by defining an access policy. The data user’s secret key must comply with the access policy’s requirements before the key can successfully decrypt the ciphertext. However, efficient revocation of access rights in CPABE schemes has multiple challenges, particularly for lightweight devices. Thus, extensive research to enforce and govern access control is absolute need. The present study reviews the bilinear pairing cryptography-based revocable CPABE schemes. The methodologies used in the existing CPABE schemes to revoke users at the system and attribute levels have been focused on in the current study. The module proposed in Proxy-based and Collusion-Resistant Multi-Authority Revocable CPABE (PCMR-CPABE) efficiently addresses the revocation issue. The present paper extends the study on PCMR-CPABE and presents a performance analysis of the module. The presented analysis has compared the computational cost of the existing cutting-edge schemes with the PCMR-CPABE module. The study has proved that the proposed module is computationally inexpensive.

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