On-line/off-line digital signatures
CRYPTO '89 Proceedings on Advances in cryptology
Improved Online/Offline Signature Schemes
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
CRYPTO '89 Proceedings of the 9th 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
Batch Verification of Short Signatures
EUROCRYPT '07 Proceedings of the 26th annual international conference on Advances in Cryptology
Efficient Generic On-Line/Off-Line Signatures Without Key Exposure
ACNS '07 Proceedings of the 5th international conference on Applied Cryptography and Network Security
Aggregate and verifiably encrypted signatures from bilinear maps
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
Efficient identity-based encryption without random oracles
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Efficient identity-based signatures secure in the standard model
ACISP'06 Proceedings of the 11th Australasian conference on Information Security and Privacy
Is the Notion of Divisible On-Line/Off-Line Signatures Stronger than On-Line/Off-Line Signatures?
ProvSec '09 Proceedings of the 3rd International Conference on Provable Security
Online/offline verification of short signatures
Inscrypt'10 Proceedings of the 6th international conference on Information security and cryptology
Efficient online/offline signatures with computational leakage resilience in online phase
Inscrypt'10 Proceedings of the 6th international conference on Information security and cryptology
Efficient and secure stored-value cards with leakage resilience
Computers and Electrical Engineering
Efficient online/offline signcryption without key exposure
International Journal of Grid and Utility Computing
LAKE: A Server-Side Authenticated Key-Establishment with Low Computational Workload
ACM Transactions on Internet Technology (TOIT)
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We propose a novel notion of signature named Optimal Online/Offline Signature. The new notion can be seen as an extension to the notion of online/offline signature, where our signature scheme allows all necessary computations to be carried out in the offline phase before the message is available and the signer does not need to conduct any computation to construct the final signature in the online phase. Although the same feature can be achieved from a one-time signature scheme, the large signature size of a one-time signature is a disadvantage. In this paper, we provide a solution that allows our signature to be aggregated into a short length (about 320 bits); hence it demonstrates a better applicability. We also give a generic construction and then extend it to an identity-based scenario.