Identity-based cryptosystems and signature schemes
Proceedings of CRYPTO 84 on Advances in cryptology
A digital signature scheme secure against adaptive chosen-message attacks
SIAM Journal on Computing - Special issue on cryptography
Random oracles are practical: a paradigm for designing efficient protocols
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
Efficient Identity Based Signature Schemes Based on Pairings
SAC '02 Revised Papers from the 9th Annual International Workshop on Selected Areas in Cryptography
Identity-Based Encryption from the Weil Pairing
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
Secure Integration of Asymmetric and Symmetric Encryption Schemes
CRYPTO '99 Proceedings of the 19th Annual International Cryptology Conference on Advances in Cryptology
Short Signatures from the Weil Pairing
ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
An Identity Based Encryption Scheme Based on Quadratic Residues
Proceedings of the 8th IMA International Conference on Cryptography and Coding
An Identity-Based Signature from Gap Diffie-Hellman Groups
PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
New traitor tracing schemes using bilinear map
Proceedings of the 3rd ACM workshop on Digital rights management
A forward-secure public-key encryption scheme
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
Boneh-Franklin identity based encryption revisited
ICALP'05 Proceedings of the 32nd international conference on Automata, Languages and Programming
Improved identity-based signcryption
PKC'05 Proceedings of the 8th international conference on Theory and Practice in Public Key Cryptography
A new two-party identity-based authenticated key agreement
CT-RSA'05 Proceedings of the 2005 international conference on Topics in Cryptology
CT-RSA'05 Proceedings of the 2005 international conference on Topics 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
On security proof of McCullagh Barreto's key agreement protocol and its variants
International Journal of Security and Networks
Software Implementation of Arithmetic in
WAIFI '07 Proceedings of the 1st international workshop on Arithmetic of Finite Fields
A new framework for the design and analysis of identity-based identification schemes
Theoretical Computer Science
Removing Escrow from Identity-Based Encryption
Irvine Proceedings of the 12th International Conference on Practice and Theory in Public Key Cryptography: PKC '09
Distributing the Key Distribution Centre in Sakai---Kasahara Based Systems
Cryptography and Coding '09 Proceedings of the 12th IMA International Conference on Cryptography and Coding
An interpretation of identity-based cryptography
Foundations of security analysis and design IV
SCN'10 Proceedings of the 7th international conference on Security and cryptography for networks
Distributed private-key generators for identity-based cryptography
SCN'10 Proceedings of the 7th international conference on Security and cryptography for networks
Identity based encryption: Progress and challenges
Information Security Tech. Report
Biometric identity based signature revisited
EuroPKI'09 Proceedings of the 6th European conference on Public key infrastructures, services and applications
Inner-product encryption under standard assumptions
Designs, Codes and Cryptography
Identity-based online/offline key encapsulation and encryption
Proceedings of the 6th ACM Symposium on Information, Computer and Communications Security
Compact identity-based encryption without strong symmetric cipher
Proceedings of the 6th ACM Symposium on Information, Computer and Communications Security
Acquiring key privacy from data privacy
Inscrypt'10 Proceedings of the 6th international conference on Information security and cryptology
The twin bilinear diffie-Hellman inversion problem and applications
ICISC'10 Proceedings of the 13th international conference on Information security and cryptology
The n-Diffie-Hellman problem and its applications
ISC'11 Proceedings of the 14th international conference on Information security
On pairing-based cryptosystems
VIETCRYPT'06 Proceedings of the First international conference on Cryptology in Vietnam
Secure cryptographic workflow in the standard model
INDOCRYPT'06 Proceedings of the 7th international conference on Cryptology in India
On constructing certificateless cryptosystems from identity based encryption
PKC'06 Proceedings of the 9th international conference on Theory and Practice of Public-Key Cryptography
SAC'11 Proceedings of the 18th international conference on Selected Areas in Cryptography
General and efficient certificateless public key encryption constructions
Pairing'07 Proceedings of the First international conference on Pairing-Based Cryptography
Anonymous identification and designated-verifiers signatures from insecure batch verification
EuroPKI'07 Proceedings of the 4th European conference on Public Key Infrastructure: theory and practice
Certificate-Based encryption scheme with general access structure
CISIM'12 Proceedings of the 11th IFIP TC 8 international conference on Computer Information Systems and Industrial Management
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Identity-based encryption (IBE) is a special asymmetric encryption method where a public encryption key can be an arbitrary identifier and the corresponding private decryption key is created by binding the identifier with a system's master secret. In 2003 Sakai and Kasahara proposed a new IBE scheme, which has the potential to improve performance. However, to our best knowledge, the security of their scheme has not been properly investigated. This work is intended to build confidence in the security of the Sakai-Kasahara IBE scheme. In this paper, we first present an efficient IBE scheme that employs a simple version of the Sakai-Kasahara scheme and the Fujisaki-Okamoto transformation, which we refer to as SK-IBE. We then prove that SK-IBE has chosen ciphertext security in the random oracle model based on a reasonably well-explored hardness assumption.