Cryptanalysis of an Identity Based Proxy Multi-Signature Scheme

Authors:
Fagen Li;Shijie Zhou;Rong Sun
Affiliations:
-;-;-
Venue:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Year:
2008

Citing 3
Cited 0

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Abstract

In a proxy multi-signature scheme, a designated proxy signer can generate the signature on behalf of a group of original signers. Recently, Wang and Cao proposed an identity based proxy multi-signature scheme along with a security model. Although they proved that their scheme is secure under this model, we disprove their claim and show that their scheme is not secure.