Abstract
The generic signcryption scheme that addresses the certificate management and key escrow issues is utilized as signcryption scheme, and has a variety of application scenarios in the resource-constrained Internet of Things (IoT) environment. However, it is proved by specific attack methods that the scheme of Karati etc. cannot handle forgery attacks. This paper summarizes the reasons why the attacker successfully forged, and proposes a certificate-free generalized encryption scheme without bilinear pairing. The scheme's security is proved on the basis of the model's computational discrete logarithm and Diffie-Hellman problem. The experimental results show that the proposed scheme is advantages in terms of computational and communication overhead, and is more suitable for limited resources—secure data transmission between IoT devices as compared with the existing systems.
Published Version
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