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
Digital Signcryption or How to Achieve Cost(Signature & Encryption)
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
The random oracle methodology, revisited
Journal of the ACM (JACM)
Certificateless signature: a new security model and an improved generic construction
Designs, Codes and Cryptography
Malicious KGC attacks in certificateless cryptography
ASIACCS '07 Proceedings of the 2nd ACM symposium on Information, computer and communications security
Proceedings of the 2008 ACM symposium on Information, computer and communications security
General Certificateless Encryption and Timed-Release Encryption
SCN '08 Proceedings of the 6th international conference on Security and Cryptography for Networks
Breaking the short certificateless signature scheme
Information Sciences: an International Journal
Certificateless Threshold Ring Signature
Information Sciences: an International Journal
Certificateless signcryption scheme in the standard model
Information Sciences: an International Journal
Generic certificateless encryption in the standard model
IWSEC'07 Proceedings of the Security 2nd international conference on Advances in information and computer security
Certificateless encryption schemes strongly secure in the standard model
PKC'08 Proceedings of the Practice and theory in public key cryptography, 11th international conference on Public key cryptography
On the security of certificateless signature schemes from asiacrypt 2003
CANS'05 Proceedings of the 4th international conference on Cryptology and Network Security
Certificateless public key encryption without pairing
ISC'05 Proceedings of the 8th international conference on Information Security
On constructing certificateless cryptosystems from identity based encryption
PKC'06 Proceedings of the 9th international conference on Theory and Practice of Public-Key Cryptography
Randomness criteria in binary visibility graph and complex network perspective
Information Sciences: an International Journal
On security of a certificateless signcryption scheme
Information Sciences: an International Journal
Cryptanalysis and improvement of a certificateless threshold signature secure in the standard model
Information Sciences: an International Journal
Provable certificateless generalized signcryption scheme
Designs, Codes and Cryptography
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Certificateless signcryption is a useful primitive which simultaneously provides the functionalities of certificateless encryption and certificateless signature. Recently, Liu et al. [15] proposed a new certificateless signcryption scheme, and claimed that their scheme is provably secure without random oracles in a strengthened security model, where the malicious-but-passive KGC attack is considered. Unfortunately, by giving concrete attacks, we indicate that Liu et al. certificateless signcryption scheme is not secure in this strengthened security model.