Cryptanalysis and improvements of an efficient certificate-based proxy signature scheme for IIoT environments

Fei Zhu,Feihong Xu,Xu Yang,Xun Yi,Alsharif Abuadbba

Information Processing Letters（2022）

引用 2|浏览19

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摘要

•Revisit the adversary's ability defined in a recent pairing-free certificate-based proxy signature (PFCBPS) scheme.•Show that the PFCBPS scheme is insecure against an adversary who can replace the proxy signer's public key.•Discuss the related reason for our attack and provide an improved scheme PFCBPS+.

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关键词

Industrial Internet of things,Certificate-based signature,Proxy,Pairing-free

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