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SCN
2010
Springer

Provably Secure Convertible Undeniable Signatures with Unambiguity

13 years 9 months ago
Provably Secure Convertible Undeniable Signatures with Unambiguity
Abstract. This paper shows some efficient and provably-secure convertible undeniable signature schemes (with both selective conversion and all conversion), in the standard model and discrete logarithm setting. They further satisfy unambiguity, which is traditionally required for anonymous signatures. Briefly, unambiguity means that it is hard to generate a (message, signature) pair which is valid for two different public-keys. In other words, our schemes can be viewed as anonymous signature schemes as well as convertible undeniable signature schemes. Besides other applications, we show that such schemes are very suitable for anonymous auction.
Le Trieu Phong, Kaoru Kurosawa, Wakaha Ogata
Added 30 Jan 2011
Updated 30 Jan 2011
Type Journal
Year 2010
Where SCN
Authors Le Trieu Phong, Kaoru Kurosawa, Wakaha Ogata
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