Paper 2015/891
Private Ciphertext-Policy Attribute-based Encryption Schemes With Constant-Size Ciphertext Supporting CNF Access Policy
Sébastien Canard and Viet Cuong Trinh
Abstract
Attribute-based encryption (ABE) is an extension of traditional public key encryption in which the encryption and decryption phases are based on user's attributes. More precisely, we focus on cipher-text-policy ABE (CP-ABE) where the secret-key is associated to a set of attributes and the ciphertext is generated with an access policy. It then becomes feasible to decrypt a ciphertext only if one's attributes satisfy the used access policy.
In this paper, we give the first private CP-ABE constructions with a constant-size ciphertext, supporting CNF (Conjunctive Normal Form) access policy, with the simple restriction that each attribute can only appear
Metadata
- Available format(s)
-
PDF
- Publication info
- Preprint. MINOR revision.
- Keywords
- Attribute-based encryptionciphertext-policyCNF
- Contact author(s)
- vietcuong trinh @ orange com
- History
- 2015-09-15: received
- Short URL
- https://ia.cr/2015/891
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2015/891, author = {Sébastien Canard and Viet Cuong Trinh}, title = {Private Ciphertext-Policy Attribute-based Encryption Schemes With Constant-Size Ciphertext Supporting {CNF} Access Policy}, howpublished = {Cryptology {ePrint} Archive, Paper 2015/891}, year = {2015}, url = {https://eprint.iacr.org/2015/891} }