Identity-based cryptosystems and signature schemes
Proceedings of CRYPTO 84 on Advances in cryptology
Universal one-way hash functions and their cryptographic applications
STOC '89 Proceedings of the twenty-first annual ACM symposium on Theory of computing
One-way functions are necessary and sufficient for secure signatures
STOC '90 Proceedings of the twenty-second annual ACM symposium on Theory of computing
Random oracles are practical: a paradigm for designing efficient protocols
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
The random oracle methodology, revisited (preliminary version)
STOC '98 Proceedings of the thirtieth annual ACM symposium on Theory of computing
Identity-Based Encryption from the Weil Pairing
SIAM Journal on Computing
Non-Interactive Zero-Knowledge Proof of Knowledge and Chosen Ciphertext Attack
CRYPTO '91 Proceedings of the 11th Annual International Cryptology Conference on Advances in Cryptology
Relations Among Notions of Security for Public-Key Encryption Schemes
CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
Toward Hierarchical Identity-Based Encryption
EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
Hierarchical ID-Based Cryptography
ASIACRYPT '02 Proceedings of the 8th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
A One Round Protocol for Tripartite Diffie-Hellman
ANTS-IV Proceedings of the 4th International Symposium on Algorithmic Number Theory
Number-theoretic constructions of efficient pseudo-random functions
FOCS '97 Proceedings of the 38th Annual Symposium on Foundations of Computer Science
Direct chosen ciphertext security from identity-based techniques
Proceedings of the 12th ACM conference on Computer and communications security
Chosen-Ciphertext Security from Identity-Based Encryption
SIAM Journal on Computing
Generic Constructions of Identity-Based and Certificateless KEMs
Journal of Cryptology
The exact security of digital signatures-how to sign with RSA and Rabin
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
Construction of a hybrid HIBE protocol secure against adaptive attacks: without random oracle
ProvSec'07 Proceedings of the 1st international conference on Provable security
CCA2 secure IBE: standard model efficiency through authenticated symmetric encryption
CT-RSA'08 Proceedings of the 2008 The Cryptopgraphers' Track at the RSA conference on Topics in cryptology
About the security of ciphers (semantic security and pseudo-random permutations)
SAC'04 Proceedings of the 11th international conference on Selected Areas in Cryptography
Faster pairings using an elliptic curve with an efficient endomorphism
INDOCRYPT'05 Proceedings of the 6th international conference on Cryptology in India
Improved efficiency for CCA-secure cryptosystems built using identity-based encryption
CT-RSA'05 Proceedings of the 2005 international conference on Topics in Cryptology
On the generic insecurity of the full domain hash
CRYPTO'05 Proceedings of the 25th annual international conference on Advances in Cryptology
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
EME*: extending EME to handle arbitrary-length messages with associated data
INDOCRYPT'04 Proceedings of the 5th international conference on Cryptology in India
Chosen-ciphertext secure threshold identity-based key encapsulation without random oracles
SCN'06 Proceedings of the 5th international conference on Security and Cryptography for Networks
On the limitations of the spread of an IBE-to-PKE transformation
PKC'06 Proceedings of the 9th international conference on Theory and Practice of Public-Key Cryptography
Practical identity-based encryption without random oracles
EUROCRYPT'06 Proceedings of the 24th annual international conference on The Theory and Applications of Cryptographic Techniques
Direct chosen-ciphertext secure identity-based key encapsulation without random oracles
ACISP'06 Proceedings of the 11th Australasian conference on Information Security and Privacy
New constructions of constant size ciphertext HIBE without random oracle
ICISC'06 Proceedings of the 9th international conference on Information Security and Cryptology
Chosen-Ciphertext security from tag-based encryption
TCC'06 Proceedings of the Third conference on Theory of Cryptography
ICISC'05 Proceedings of the 8th international conference on Information Security and Cryptology
Short signatures from weaker assumptions
ASIACRYPT'11 Proceedings of the 17th international conference on The Theory and Application of Cryptology and Information Security
International Journal of Applied Cryptography
Information Sciences: an International Journal
Efficient identity-based signcryption without random oracles
AISC '12 Proceedings of the Tenth Australasian Information Security Conference - Volume 125
Publicly verifiable ciphertexts
Journal of Computer Security - Advances in Security for Communication Networks
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We describe a practical identity-based encryption scheme that is secure in the standard model against chosen-ciphertext attacks. Our construction applies ''direct chosen-ciphertext techniques'' to Waters' chosen-plaintext secure scheme and is not based on hierarchical identity-based encryption. Furthermore, we give an improved concrete security analysis for Waters' scheme. As a result, one can instantiate the scheme in smaller groups, resulting in efficiency improvements.