CRYPTO '94 Proceedings of the 14th Annual International Cryptology Conference on Advances in Cryptology
Secure Integration of Asymmetric and Symmetric Encryption Schemes
CRYPTO '99 Proceedings of the 19th Annual International Cryptology Conference on Advances in Cryptology
Non-Malleable Non-Interactive Zero Knowledge and Adaptive Chosen-Ciphertext Security
FOCS '99 Proceedings of the 40th Annual Symposium on Foundations of Computer Science
Attribute-based encryption for fine-grained access control of encrypted data
Proceedings of the 13th ACM conference on Computer and communications security
Ciphertext-Policy Attribute-Based Encryption
SP '07 Proceedings of the 2007 IEEE Symposium on Security and Privacy
Attribute-based encryption with non-monotonic access structures
Proceedings of the 14th ACM conference on Computer and communications security
Provably secure ciphertext policy ABE
Proceedings of the 14th ACM conference on Computer and communications security
Bounded Ciphertext Policy Attribute Based Encryption
ICALP '08 Proceedings of the 35th international colloquium on Automata, Languages and Programming, Part II
Conjunctive, subset, and range queries on encrypted data
TCC'07 Proceedings of the 4th conference on Theory of cryptography
Predicate encryption supporting disjunctions, polynomial equations, and inner products
EUROCRYPT'08 Proceedings of the theory and applications of cryptographic techniques 27th annual international conference on Advances in cryptology
Attribute-based encryption with partially hidden encryptor-specified access structures
ACNS'08 Proceedings of the 6th international conference on Applied cryptography and network security
Identity-Based encryption gone wild
ICALP'06 Proceedings of the 33rd international conference on Automata, Languages and Programming - Volume Part II
Fuzzy identity-based encryption
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Multi-authority ciphertext-policy attribute-based encryption with accountability
Proceedings of the 6th ACM Symposium on Information, Computer and Communications Security
Fully secure cipertext-policy hiding CP-ABE
ISPEC'11 Proceedings of the 7th international conference on Information security practice and experience
Enhancing Attribute-Based Encryption with Attribute Hierarchy
Mobile Networks and Applications
Dynamic attribute-based signcryption without random oracles
International Journal of Applied Cryptography
Attribute-based encryption without key cloning
International Journal of Applied Cryptography
Dynamic attribute-based signcryption without random oracles
International Journal of Applied Cryptography
Attribute-based encryption without key cloning
International Journal of Applied Cryptography
Expressive CP-ABE with partially hidden access structures
Proceedings of the 7th ACM Symposium on Information, Computer and Communications Security
Efficient ciphertext-policy attribute based encryption with hidden policy
IDCS'12 Proceedings of the 5th international conference on Internet and Distributed Computing Systems
Outsourcing encryption of attribute-based encryption with mapreduce
ICICS'12 Proceedings of the 14th international conference on Information and Communications Security
Anonymous attribute-based encryption supporting efficient decryption test
Proceedings of the 8th ACM SIGSAC symposium on Information, computer and communications security
Secure access to outsourced data
Proceedings of the 2013 international workshop on Security in cloud computing
Future Generation Computer Systems
Flexible multi-authority attribute-based signature schemes for expressive policy
Mobile Information Systems - Advances in Network-Based Information Systems
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As a new public key primitive, attribute-based encryption (ABE) is envisioned to be a promising tool for implementing fine-grained access control. To further address the concern of user access privacy, privacy-aware ABE schemes are being developed to achieve hidden access policy recently. For the purpose of secure access control, there is, however, still one critical functionality missing in the existing ABE schemes, which is user accountability. Currently, no ABE scheme can completely prevent the problem of illegal key sharing among users. In this paper, we tackle this problem by firstly proposing the notion of accountable, anonymous, and ciphertext-policy ABE (CP-A3BE, in short) and then giving out a concrete construction. We start by improving the state-of-the-art of anonymous CP-ABE to obtain shorter public parameters and ciphertext length. In the proposed CP-A3BE construction, user accountability can be achieved in black-box model by embedding additional user-specific information into the attribute private key issued to that user, while still maintaining hidden access policy. The proposed constructions are provably secure.