Identity-based cryptosystems and signature schemes
Proceedings of CRYPTO 84 on Advances in cryptology
CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
Attribute-based encryption for fine-grained access control of encrypted data
Proceedings of the 13th ACM conference on Computer and communications security
Secure attribute-based systems
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
Multi-authority attribute based encryption
TCC'07 Proceedings of the 4th conference on Theory of cryptography
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
Strongly unforgeable signatures based on computational diffie-hellman
PKC'06 Proceedings of the 9th international conference on Theory and Practice of Public-Key Cryptography
Attribute-based encryption with non-monotonic access structures
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
Attribute-based on-demand multicast group setup with membership anonymity
Proceedings of the 4th international conference on Security and privacy in communication netowrks
A Fuzzy ID-Based Encryption Efficient When Error Rate Is Low
INDOCRYPT '08 Proceedings of the 9th International Conference on Cryptology in India: Progress in Cryptology
Secure Threshold Multi Authority Attribute Based Encryption without a Central Authority
INDOCRYPT '08 Proceedings of the 9th International Conference on Cryptology in India: Progress in Cryptology
Distributed Attribute-Based Encryption
Information Security and Cryptology --- ICISC 2008
PBES: a policy based encryption system with application to data sharing in the power grid
Proceedings of the 4th International Symposium on Information, Computer, and Communications Security
Attribute based proxy re-encryption with delegating capabilities
Proceedings of the 4th International Symposium on Information, Computer, and Communications Security
Provably secure and efficient bounded ciphertext policy attribute based encryption
Proceedings of the 4th International Symposium on Information, Computer, and Communications Security
Efficient and Provable Secure Ciphertext-Policy Attribute-Based Encryption Schemes
ISPEC '09 Proceedings of the 5th International Conference on Information Security Practice and Experience
A Ciphertext-Policy Attribute-Based Encryption Scheme with Constant Ciphertext Length
ISPEC '09 Proceedings of the 5th International Conference on Information Security Practice and Experience
Privacy-Aware Attribute-Based Encryption with User Accountability
ISC '09 Proceedings of the 12th International Conference on Information Security
Mediated Ciphertext-Policy Attribute-Based Encryption and Its Application
Information Security Applications
Attribute-based on-demand multicast group setup with membership anonymity
Computer Networks: The International Journal of Computer and Telecommunications Networking
Attribute-based signature and its applications
ASIACCS '10 Proceedings of the 5th ACM Symposium on Information, Computer and Communications Security
Attribute based data sharing with attribute revocation
ASIACCS '10 Proceedings of the 5th ACM Symposium on Information, Computer and Communications Security
Secure threshold multi authority attribute based encryption without a central authority
Information Sciences: an International Journal
Attribute-based encryption with partially hidden encryptor-specified access structures
ACNS'08 Proceedings of the 6th international conference on Applied cryptography and network security
Restricted queries over an encrypted index with applications to regulatory compliance
ACNS'08 Proceedings of the 6th international conference on Applied cryptography and network security
Attribute-sets: a practically motivated enhancement to attribute-based encryption
ESORICS'09 Proceedings of the 14th European conference on Research in computer security
A ciphertext-policy attribute-based encryption scheme with constant ciphertext length
International Journal of Applied Cryptography
Proceedings of the 17th ACM conference on Computer and communications security
Attribute-based authenticated key exchange
ACISP'10 Proceedings of the 15th Australasian conference on Information security and privacy
Ciphertext policy attribute-based proxy re-encryption
ICICS'10 Proceedings of the 12th international conference on Information and communications security
Strongly secure two-pass attribute-based authenticated key exchange
Pairing'10 Proceedings of the 4th international conference on Pairing-based cryptography
Hybrid proxy re-encryption scheme for attribute-based encryption
Inscrypt'09 Proceedings of the 5th international conference on Information security and cryptology
PKC'11 Proceedings of the 14th international conference on Practice and theory in public key cryptography conference on Public key cryptography
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
Multi-authority ciphertext-policy attribute-based encryption with accountability
Proceedings of the 6th ACM Symposium on Information, Computer and Communications Security
Achieving leakage resilience through dual system encryption
TCC'11 Proceedings of the 8th conference on Theory of cryptography
Unbounded HIBE and attribute-based encryption
EUROCRYPT'11 Proceedings of the 30th Annual international conference on Theory and applications of cryptographic techniques: advances in cryptology
Decentralizing attribute-based encryption
EUROCRYPT'11 Proceedings of the 30th Annual international conference on Theory and applications of cryptographic techniques: advances in cryptology
Fully secure cipertext-policy hiding CP-ABE
ISPEC'11 Proceedings of the 7th international conference on Information security practice and experience
Toward dynamic attribute-based signcryption
ACISP'11 Proceedings of the 16th Australasian conference on Information security and privacy
Attribute based signatures for bounded multi-level threshold circuits
EuroPKI'10 Proceedings of the 7th European conference on Public key infrastructures, services and applications
Oblivious transfer with complex attribute-based access control
ICISC'10 Proceedings of the 13th international conference on Information security and cryptology
Fully secure multi-authority ciphertext-policy attribute-based encryption without random oracles
ESORICS'11 Proceedings of the 16th European conference on Research in computer security
ProvSec'11 Proceedings of the 5th international conference on Provable security
Enhancing Attribute-Based Encryption with Attribute Hierarchy
Mobile Networks and Applications
Poster: attribute based broadcast encryption with permanent revocation
Proceedings of the 18th ACM conference on Computer and communications security
Attribute-based encryption schemes with constant-size ciphertexts
Theoretical Computer Science
Dynamic attribute-based signcryption without random oracles
International Journal of Applied Cryptography
Attribute-based encryption without key cloning
International Journal of Applied Cryptography
Constant size ciphertexts in threshold attribute-based encryption
PKC'10 Proceedings of the 13th international conference on Practice and Theory in Public Key Cryptography
EUROCRYPT'10 Proceedings of the 29th Annual international conference on Theory and Applications of Cryptographic Techniques
Dynamic attribute-based signcryption without random oracles
International Journal of Applied Cryptography
Attribute-based encryption without key cloning
International Journal of Applied Cryptography
Computer Networks: The International Journal of Computer and Telecommunications Networking
IMACC'11 Proceedings of the 13th IMA international conference on Cryptography and Coding
Hidden access structure ciphertext policy attribute based encryption with constant length ciphertext
ADCONS'11 Proceedings of the 2011 international conference on Advanced Computing, Networking and Security
Fine-grained user access control in ciphertext-policy attribute-based encryption
Security and Communication Networks
Hiding the policy in cryptographic access control
STM'11 Proceedings of the 7th international conference on Security and Trust Management
Functional encryption for threshold functions (or fuzzy IBE) from lattices
PKC'12 Proceedings of the 15th international conference on Practice and Theory in Public Key Cryptography
Threshold ciphertext policy attribute-based encryption with constant size ciphertexts
ACISP'12 Proceedings of the 17th Australasian conference on Information Security and Privacy
ICISC'11 Proceedings of the 14th international conference on Information Security and Cryptology
Dependable and secure computing in medical information systems
Computer Communications
Efficient fully secure attribute-based encryption schemes for general access structures
ProvSec'12 Proceedings of the 6th international conference on Provable Security
Strongly secure attribute-based authenticated key exchange with traceability
WISM'12 Proceedings of the 2012 international conference on Web Information Systems and Mining
A general construction for multi-authority attribute-based encryption
AICI'12 Proceedings of the 4th international conference on Artificial Intelligence and Computational Intelligence
A ciphertext policy attribute-based encryption scheme without pairings
Inscrypt'11 Proceedings of the 7th international conference on Information Security and Cryptology
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
Computers and Electrical Engineering
Anonymous attribute-based encryption supporting efficient decryption test
Proceedings of the 8th ACM SIGSAC symposium on Information, computer and communications security
Efficient and secure data storage operations for mobile cloud computing
Proceedings of the 8th International Conference on Network and Service Management
International Journal of Security and Networks
Practical constructions and new proof methods for large universe attribute-based encryption
Proceedings of the 2013 ACM SIGSAC conference on Computer & communications security
Proceedings of the 2013 ACM SIGSAC conference on Computer & communications security
An efficient attribute-based signature scheme with claim-predicate mechanism
International Journal of Grid and Utility Computing
Secure Data Retrieval for Decentralized Disruption-Tolerant Military Networks
IEEE/ACM Transactions on Networking (TON)
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In ciphertext policy attribute-based encryption (CP-ABE), every secret key is associated with a set of attributes, and every ciphertext is associated with an access structure on attributes. Decryption is enabled if and only if the user's attribute set satisfies the ciphertext access structure. This provides fine-grained access control on shared data in many practical settings, e.g., secure database and IP multicast. In this paper, we study CP-ABE schemes in which access structures are AND gates on positive and negative attributes. Our basic scheme is proven to be chosen plaintext (CPA) secure under the decisional bilinear Diffie-Hellman (DBDH) assumption. We then apply the Canetti-Halevi-Katz technique to obtain a chosen ciphertext (CCA) secure extension using one-time signatures. The security proof is a reduction to the DBDH assumption and the strong existential unforgeability of the signature primitive. In addition, we introduce hierarchical attributes to optimize our basic scheme - reducing both ciphertext size and encryption/decryption time while maintaining CPA security. We conclude with a discussion of practical applications of CP-ABE.