Cryptanalysis of a Pairing-free Certificateless Signcryption scheme
Philemon Kasyoka, Michael Kimwele, Shem Mbandu Angolo
Abstract
Signcryption is a very useful cryptographic primitive that aims to achieve authentication and confidentiality in an efficient manner. We cryptanalyze the signcryption scheme of Wei and Ma (2019) which is claimed to be secure. Further, we propose a corresponding modification to show how their signcryption scheme can be made more secure in our proposed signcryption scheme. The security analysis is also applicable to other signcryption schemes with similar design.
Topics & Concepts
SigncryptionCryptanalysisScheme (mathematics)Cryptographic primitiveCryptographyComputer scienceAuthentication (law)Computer networkConfidentialityTheoretical computer sciencePublic-key cryptographyCryptographic protocolComputer securityMathematicsEncryptionMathematical analysisCryptography and Data SecurityChaos-based Image/Signal EncryptionCryptographic Implementations and Security