CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
Identity-Based Encryption from the Weil Pairing
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
Revocation and Tracing Schemes for Stateless Receivers
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
Fast Digital Identity Revocation (Extended Abstract)
CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
Efficient Trace and Revoke Schemes
FC '00 Proceedings of the 4th International Conference on Financial Cryptography
Efficient Certificate Revocation
Efficient Certificate Revocation
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
A content-driven access control system
Proceedings of the 7th symposium on Identity and trust on the Internet
Bounded Ciphertext Policy Attribute Based Encryption
ICALP '08 Proceedings of the 35th international colloquium on Automata, Languages and Programming, Part II
Identity-based encryption with efficient revocation
Proceedings of the 15th ACM conference on Computer and communications security
Generalized Identity Based and Broadcast Encryption Schemes
ASIACRYPT '08 Proceedings of the 14th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Dual-Policy Attribute Based Encryption
ACNS '09 Proceedings of the 7th International Conference on Applied Cryptography and Network Security
Multi-authority attribute based encryption
TCC'07 Proceedings of the 4th conference on Theory of cryptography
Certificate-based encryption and the certificate revocation problem
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
Forward-Secure and searchable broadcast encryption with short ciphertexts and private keys
ASIACRYPT'06 Proceedings of the 12th international conference on Theory and Application of Cryptology and Information Security
ASIACRYPT'05 Proceedings of the 11th international conference on Theory and Application of Cryptology and Information Security
Collusion resistant broadcast encryption with short ciphertexts and private keys
CRYPTO'05 Proceedings of the 25th annual international conference on Advances in Cryptology
Fuzzy identity-based encryption
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Attribute-Based Encryption Supporting Direct/Indirect Revocation Modes
Cryptography and Coding '09 Proceedings of the 12th IMA International Conference on Cryptography and Coding
Privacy preserving EHR system using attribute-based infrastructure
Proceedings of the 2010 ACM workshop on Cloud computing security workshop
Proceedings of the tenth annual ACM workshop on Digital rights management
Threshold attribute-based signcryption
SCN'10 Proceedings of the 7th international conference on Security and cryptography for networks
Generic constructions for chosen-ciphertext secure attribute based encryption
PKC'11 Proceedings of the 14th international conference on Practice and theory in public key cryptography conference on Public key cryptography
Expressive key-policy attribute-based encryption with constant-size ciphertexts
PKC'11 Proceedings of the 14th international conference on Practice and theory in public key cryptography conference on Public key cryptography
Functional encryption: definitions and challenges
TCC'11 Proceedings of the 8th conference on Theory of cryptography
Selective disclosure on encrypted documents
DBSec'11 Proceedings of the 25th annual IFIP WG 11.3 conference on Data and applications security and privacy
Attribute-based encryption schemes with constant-size ciphertexts
Theoretical Computer Science
Attribute-based encryption without key cloning
International Journal of Applied Cryptography
Attribute-based encryption without key cloning
International Journal of Applied Cryptography
Functional encryption for inner product predicates from learning with errors
ASIACRYPT'11 Proceedings of the 17th international conference on The Theory and Application of Cryptology and Information Security
Towards attribute revocation in key-policy attribute based encryption
CANS'11 Proceedings of the 10th international conference on Cryptology and Network Security
Fully private revocable predicate encryption
ACISP'12 Proceedings of the 17th Australasian conference on Information Security and Privacy
New ciphertext-policy attribute-based access control with efficient revocation
ICT-EurAsia'13 Proceedings of the 2013 international conference on Information and Communication Technology
International Journal of Security and Networks
A scalable encryption scheme for multi-privileged group communications
The Journal of Supercomputing
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Attribute-based encryption (ABE) system enables an access control mechanism over encrypted data by specifying access policies among private keys and ciphertexts. There are two flavors of ABE, namely key-policy and ciphertext-policy, depending on which of private keys or ciphertexts that access policies are associated with. In this paper we propose a new cryptosystem called Broadcast ABE for both flavors. Broadcast ABE can be used to construct ABE systems with direct revocation mechanism. Direct revocation has a useful property that revocation can be done without affecting any non-revoked users; in particular, it does not require users to update keys periodically. For key-policy variant, our systems appear to be the first fully-functional directly revocable schemes. For ciphertext-policy variant, our systems improve the efficiency from the previously best revocable schemes; in particular, one of our schemes admits ciphertext and private key sizes roughly the same as the currently best (non-revocable) ciphertext-policy ABE. Broadcast ABE can also be utilized to construct multi-authority ABE in the disjunctive setting.