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Traceability on Low-Computation Partially Blind Signatures for Electronic Cash
Min-Shiang HWANG Cheng-Chi LEE Yan-Chi LAI
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/05/01
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Information Security
blind signature, electronic cash, quadratic residues, untraceability,
Full Text: PDF(104.5KB)>>
In 1998, Fan and Lei proposed a partially blind signature scheme that could reduce the computation load and the size of the database for electronic cash systems. In this Letter, we show that their scheme could not meet the untraceability property of a blind signature.