Improvement on Hwang et al.'s generalization of proxy signature schemes based on elliptic curves
學年 94
學期 1
出版（發表）日期 2005-11-15
作品名稱 Improvement on Hwang et al.'s generalization of proxy signature schemes based on elliptic curves
作品名稱（其他語言）
著者 黃心嘉; Hwang, Shin-jia; Huang, Chia-wei
單位 淡江大學資訊工程學系
出版者 Elsevier
著錄名稱、卷期、頁數 Applied Mathematics and Computation 170(2), pp.941-947
摘要 Hwang et al. proposed their generalization of proxy signature schemes based on elliptic curves. However, two attacks are proposed to show that their schemes have serious security flaws. By the first attack, an adversary can forge an illegal proxy signature that verifiers cannot actually find out the original signers of proxy signatures. The second attack is used to change proxy signatures into multi-signatures belonging to the group that actually generates the proxy signatures. To overcome these flaws, our improvement on Hwang et al.’s scheme is also proposed.
關鍵字 Proxy signature schemes; Proxy threshold signature schemes; Multi-proxy signature schemes; Proxy multi-signature schemes; Multi-proxy multi-signature schemes; Digital signature schemes; Elliptic curve cryptography
語言 en
ISSN 0096-3003
期刊性質 國內
收錄於
產學合作
通訊作者
審稿制度 否
國別 TWN
公開徵稿
出版型式 ,電子版
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