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33

EUROCRYPT
2005
Springer

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3-Move Undeniable Signature Scheme

14 years 4 months ago

3-Move Undeniable Signature Scheme

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In undeniable signature schemes, zero-knowledgeness and non-transferability have been identiﬁed so far. In this paper, by separating these two notions, we show the ﬁrst 3-move conﬁrmation and disavowal protocols for Chaum’s undeniable signature scheme which is secure against active and concurrent attacks. Our main observation is that while the signer has one public key and one secret key, there exist two witnesses in the conﬁrmation and disavowal proofs of Chaum’s scheme.

Kaoru Kurosawa, Swee-Huay Heng

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Chaum’s Undeniable Signature | Cryptography | EUROCRYPT 2005 | Undeniable Signature Scheme | ﬁrst 3-move Conﬁrmation |

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Added	27 Jun 2010
Updated	27 Jun 2010
Type	Conference
Year	2005
Where	EUROCRYPT
Authors	Kaoru Kurosawa, Swee-Huay Heng

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