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Robust Digital Signature Scheme with Subliminal Channels
Narn-Yih LEE Dai-Rui LIN
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/01/01
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section on Cryptography and Information Security)
cryptography, security, digital signature, subliminal channel,
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Jan and Tseng, in 1999, proposed two efficient digital signature schemes with subliminal channels. However, we show that a malicious subliminal receiver can forge subliminal messages that will be accepted by other subliminal receivers in Jan and Tseng's two schemes. Moreover, we also present a modification of Jan and Tseng's schemes to repair the security flaw.