Identity-based cryptosystems and signature schemes
Proceedings of CRYPTO 84 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
Efficient Trace and Revoke Schemes
FC '00 Proceedings of the 4th International Conference on Financial Cryptography
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
General Ad Hoc Encryption from Exponent Inversion IBE
EUROCRYPT '07 Proceedings of the 26th annual international conference on Advances in Cryptology
Bounded Ciphertext Policy Attribute Based Encryption
ICALP '08 Proceedings of the 35th international colloquium on Automata, Languages and Programming, Part II
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
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
Dual-Policy Attribute Based Encryption
ACNS '09 Proceedings of the 7th International Conference on Applied Cryptography and Network Security
Conjunctive Broadcast and Attribute-Based Encryption
Pairing '09 Proceedings of the 3rd International Conference Palo Alto on Pairing-Based Cryptography
Improving privacy and security in multi-authority attribute-based encryption
Proceedings of the 16th ACM conference on Computer and communications security
Multi-authority attribute based encryption
TCC'07 Proceedings of the 4th conference on Theory of cryptography
A forward-secure public-key encryption scheme
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
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
Revocation Systems with Very Small Private Keys
SP '10 Proceedings of the 2010 IEEE Symposium on Security and Privacy
Fully secure functional encryption with general relations from the decisional linear assumption
CRYPTO'10 Proceedings of the 30th annual conference on Advances in 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
Functional encryption: definitions and challenges
TCC'11 Proceedings of the 8th 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
Hierarchical identity based encryption with constant size ciphertext
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Fuzzy identity-based encryption
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Constant size ciphertexts in threshold attribute-based encryption
PKC'10 Proceedings of the 13th international conference on Practice and Theory in Public Key Cryptography
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
Security analysis of the strong diffie-hellman problem
EUROCRYPT'06 Proceedings of the 24th annual international conference on The Theory and Applications of Cryptographic Techniques
Generalized key delegation for hierarchical identity-based encryption
ESORICS'07 Proceedings of the 12th European conference on Research in Computer Security
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
ProvSec'11 Proceedings of the 5th international conference on Provable security
Ideal secret sharing schemes with share selectability
ICICS'11 Proceedings of the 13th international conference on Information 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
Dynamic attribute-based signcryption without random oracles
International Journal of Applied Cryptography
Short attribute-based signatures for threshold predicates
CT-RSA'12 Proceedings of the 12th conference on Topics in Cryptology
CANS'11 Proceedings of the 10th international conference on Cryptology and Network Security
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
Combined public-key schemes: the case of ABE and ABS
ProvSec'12 Proceedings of the 6th international conference on Provable Security
Efficient fully secure attribute-based encryption schemes for general access structures
ProvSec'12 Proceedings of the 6th international conference on Provable Security
A general construction for multi-authority attribute-based encryption
AICI'12 Proceedings of the 4th international conference on Artificial Intelligence and Computational Intelligence
Fully secure hidden vector encryption under standard assumptions
Information Sciences: an International Journal
CT-RSA'13 Proceedings of the 13th international conference on Topics in Cryptology
Proceedings of the 2013 ACM SIGSAC conference on Computer & communications security
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Attribute-based encryption (ABE), as introduced by Sahai and Waters, allows for fine-grained access control on encrypted data. In its key-policy flavor, the primitive enables senders to encrypt messages under a set of attributes and private keys are associated with access structures that specify which ciphertexts the key holder will be allowed to decrypt. In most ABE systems, the ciphertext size grows linearly with the number of ciphertext attributes and the only known exceptions only support restricted forms of threshold access policies. This paper proposes the first key-policy attribute-based encryption (KP-ABE) schemes allowing for non-monotonic access structures (i.e., that may contain negated attributes) and with constant ciphertext size. Towards achieving this goal, we first show that a certain class of identity-based broadcast encryption schemes generically yields monotonic KPABE systems in the selective set model. We then describe a new efficient identity-based revocation mechanism that, when combined with a particular instantiation of our general monotonic construction, gives rise to the first truly expressive KP-ABE realization with constant-size ciphertexts. The downside of these new constructions is that private keys have quadratic size in the number of attributes. On the other hand, they reduce the number of pairing evaluations to a constant, which appears to be a unique feature among expressive KP-ABE schemes.