Journal of Electrical Engineering and information Science
- 제1권2호
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- Pages.87-95
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- 1996
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- 1226-1262(pISSN)
Threshold Digital Signatures based on Discrete Logarithm
초록
This paper presents a (k,n) threshold digital signature scheme with no trusted dealer. Our idea is to use the EIGamal signature scheme modified for group use. Among many digital signature schemes, our modification has a nice property for our purpose. We also show a (k.n) threshold fail stop signature scheme and two (k.n) threshold undeniable signature schemes. We use [10] as the original fail stop signature scheme, and use [3] and [2] as the original undeniable signature schemes. Since all these schemes are based on the discrete log problem, we can use the same technique.
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