Identity-based cryptosystems and signature schemes
Proceedings of CRYPTO 84 on Advances in cryptology
Random oracles are practical: a paradigm for designing efficient protocols
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
Identity-Based Encryption from the Weil Pairing
CRYPTO '01 Proceedings of the 21st 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
The random oracle methodology, revisited
Journal of the ACM (JACM)
Certificate-based encryption and the certificate revocation problem
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
CBE from CL-PKE: a generic construction and efficient schemes
PKC'05 Proceedings of the 8th international conference on Theory and Practice in Public Key Cryptography
Chosen-ciphertext security of multiple encryption
TCC'05 Proceedings of the Second international conference on Theory of Cryptography
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
Malicious KGC attacks in certificateless cryptography
ASIACCS '07 Proceedings of the 2nd ACM symposium on Information, computer and communications security
Improved certificate-based encryption in the standard model
Journal of Systems and Software
Efficient Certificate-Based Encryption in the Standard Model
SCN '08 Proceedings of the 6th international conference on Security and Cryptography for Networks
Further Observations on Certificateless Public Key Encryption
Information Security and Cryptology
Strongly secure certificateless public key encryption without pairing
CANS'07 Proceedings of the 6th international conference on Cryptology and network security
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
Constructions of certificate-based signature secure against key replacement attacks
Journal of Computer Security - The 2007 European PKI Workshop: Theory and Practice (EuroPKI'07)
An efficient short certificate-based signature scheme
Journal of Systems and Software
General and efficient certificateless public key encryption constructions
Pairing'07 Proceedings of the First international conference on Pairing-Based Cryptography
Certificate-based signature: security model and efficient construction
EuroPKI'07 Proceedings of the 4th European conference on Public Key Infrastructure: theory and practice
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Identity-based public key cryptography is aimed at simplifying the management of certificates in traditional public key infrastructures by means of using the identity of a user as its public key. The user must identify itself to a trusted authority in order to obtain the secret key corresponding to its identity. The main drawback of this special form of public key cryptography is that it is key escrowed. Certificate-based and certificate-less cryptography have been recently proposed as intermediate paradigms between traditional and identity-based cryptography, seeking to simplify the management of certificates while avoiding the key escrow property of identity-based cryptography. In this work we cryptanalyse the certificate-based and certificate-less encryption schemes presented by Yum and Lee at EuroPKI 2004 and ICCSA 2004 conferences.