Saddam Hussain1, Syed Sajid Ullah2,*, Mohammad Shorfuzzaman3, Mueen Uddin4, Mohammed Kaosar5
Intelligent Automation & Soft Computing, Vol.30, No.3, pp. 983-993, 2021, DOI:10.32604/iasc.2021.019486
- 20 August 2021
Abstract Recently, Khan et al. [An online-offline certificateless signature scheme for internet of health things,” Journal of Healthcare Engineering, vol. 2020] presented a new certificateless offline/online signature scheme for Internet of Health Things (IoHT) to fulfill the authenticity requirements of the resource-constrained environment of (IoHT) devices. The authors claimed that the newly proposed scheme is formally secured against Type-I adversary under the Random Oracle Model (ROM). Unfortunately, their scheme is insecure against adaptive chosen message attacks. It is demonstrated that an adversary can forge a valid signature on a message by replacing the public key. Furthermore, More >
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