| Title | White-box traceable dynamic attribute based encryption |
| Publication Type | Conference Paper |
| Year of Publication | 2017 |
| Authors | Liu, Zechao, Wang, Xuan, Cui, Lei, Jiang, Zoe L., Zhang, Chunkai |
| Conference Name | 2017 International Conference on Security, Pattern Analysis, and Cybernetics (SPAC) |
| Keywords | access policy, attribute-based encryption, authorisation, ciphertext policy, cloud computing, composability, CP-ABE scheme, decryption keys, Encryption, fine-grained access control, Games, malicious users, Metrics, multiple users, out-sourcing decryption, private key cryptography, pubcrawl, Resiliency, Secret key, Servers, Silicon, user revocation, white box cryptography, white-box traceability, white-box traceable dynamic attribute based encryption |
| Abstract | Ciphertext policy attribute-based encryption (CP-ABE) is a promising technology that offers fine-grained access control over encrypted data. In a CP-ABE scheme, any user can decrypt the ciphertext using his secret key if his attributes satisfy the access policy embedded in the ciphertext. Since the same ciphertext can be decrypted by multiple users with their own keys, the malicious users may intentionally leak their decryption keys for financial profits. So how to trace the malicious users becomes an important issue in a CP-ABE scheme. In addition, from the practical point of view, users may leave the system due to resignation or dismissal. So user revocation is another hot issue that should be solved. In this paper, we propose a practical CP-ABE scheme. On the one hand, our scheme has the properties of traceability and large universe. On the other hand, our scheme can solve the dynamic issue of user revocation. The proposed scheme is proved selectively secure in the standard model. |
| DOI | 10.1109/SPAC.2017.8304334 |
| Citation Key | liu_white-box_2017 |
White-box traceable dynamic attribute based encryption