Article ID Journal Published Year Pages File Type
9506519 Applied Mathematics and Computation 2005 12 Pages PDF
Abstract
In this paper, we show that Tseng et al.'s signature schemes are existential forgable after getting a valid message-signature pair, and Chang et al.'s improved signature schemes are still not secure against an un-trusted system authority.
Keywords
Related Topics
Physical Sciences and Engineering Mathematics Applied Mathematics
Preview
Cryptanalysis of some signature schemes with message recovery
Authors
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