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Security Analysis of Lal and Awasthi’s Proxy Signature Schemes
Authors: Manik Lal Das, Ashutosh Saxena, V P GulatiAbstract:
In this paper, we analyze two proxy signatures scheme ,  proposed by Lal and Awasthi and found that both the schemes suffer with the security flaws. The scheme  suffers with proxy signer’s forgery attacks and misuse of original signer’s delegated information. The other scheme  suffers with original signer’s forgery attack, proxy signer’s undeniability and misuse of delegated information.
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