A ciphertext-policy attribute-based encryption scheme with constant ciphertext length

Authors:
Keita Emura;Atsuko Miyaji;Kazumasa Omote;Akito Nomura;Masakazu Soshi
Affiliations:
School of Information Science, Japan Advanced Institute of Science and Technology, Ishikawa 923-1292, Japan.;School of Information Science, Japan Advanced Institute of Science and Technology, Ishikawa 923-1292, Japan.;School of Information Science, Japan Advanced Institute of Science and Technology, Ishikawa 923-1292, Japan.;Mathematics Section, Division of Innovative Technology and Science, Graduate School of Natural Science and Technology, Kanazawa University, Ishikawa 920-1192, Japan.;Graduate School of Information Sciences, Hiroshima City University, Hiroshima 731-3194, Japan
Venue:
International Journal of Applied Cryptography
Year:
2010

Citing 22
Cited 2

How to share a secret

Communications of the ACM
Identity-Based Encryption from the Weil Pairing

SIAM Journal on Computing
Better than BiBa: Short One-Time Signatures with Fast Signing and Verifying

ACISP '02 Proceedings of the 7th Australian Conference on Information Security and Privacy
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
Provably secure ciphertext policy ABE

Proceedings of the 14th ACM conference on Computer and communications security
Short Signatures Without Random Oracles and the SDH Assumption in Bilinear Groups

Journal of Cryptology
General Conversion for Obtaining Strongly Existentially Unforgeable Signatures

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Lower bounds for discrete logarithms and related problems

EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques
Two-tier signatures, strongly unforgeable signatures, and Fiat-Shamir without random oracles

PKC'07 Proceedings of the 10th international conference on Practice and theory in public-key cryptography
Identity-based traitor tracing

PKC'07 Proceedings of the 10th international conference on Practice and theory in public-key cryptography
Multi-authority attribute based encryption

TCC'07 Proceedings of the 4th conference on Theory of cryptography
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 broadcast encryption scheme made efficient

AFRICACRYPT'08 Proceedings of the Cryptology in Africa 1st international conference on Progress 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
Efficient identity-based encryption without random oracles

EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
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
Anonymous hierarchical identity-based encryption (without random oracles)

CRYPTO'06 Proceedings of the 26th annual international conference on Advances in Cryptology
Strongly unforgeable signatures based on computational diffie-hellman

PKC'06 Proceedings of the 9th international conference on Theory and Practice of Public-Key Cryptography

Dynamic attribute-based signcryption without random oracles

International Journal of Applied Cryptography
Dynamic attribute-based signcryption without random oracles

International Journal of Applied Cryptography

Quantified Score

Hi-index	0.00

Visualization

Abstract

An Attribute-Based Encryption (ABE) is an encryption scheme where users with some attributes can decrypt ciphertexts associated with these attributes. The length of the ciphertext depends on the number of attributes in previous ABE schemes. In this paper, we propose a new Ciphertext-Policy Attribute-Based Encryption (CP-ABE) with constant ciphertext length. In our scheme, the number of pairing computations is also constant. In addition, the number of additional bits required from chosen plaintext attack-secure CP-ABE to chosen ciphertext attack-secure CP-ABE is reduced by 90% with respect to that of the previous scheme.