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JOC
2000
181views more  JOC 2000»
13 years 5 months ago
Security Arguments for Digital Signatures and Blind Signatures
Abstract. Since the appearance of public-key cryptography in the seminal DiffieHellman paper, many new schemes have been proposed and many have been broken. Thus, the simple fact t...
David Pointcheval, Jacques Stern
ASIACRYPT
2006
Springer
13 years 9 months ago
New Approach for Selectively Convertible Undeniable Signature Schemes
In this paper, we propose a new approach for constructing selectively convertible undeniable signature schemes, and present two efficient schemes based on RSA. Our approach allows ...
Kaoru Kurosawa, Tsuyoshi Takagi
ICISC
2001
162views Cryptology» more  ICISC 2001»
13 years 6 months ago
Content Extraction Signatures
Motivated by emerging needs in online interactions, we define a new type of digital signature called a `Content Extraction Signature' (CES). A CES allows the owner, Bob, of a...
Ron Steinfeld, Laurence Bull, Yuliang Zheng
JOC
2002
114views more  JOC 2002»
13 years 5 months ago
Improving the Exact Security of Digital Signature Schemes
We put forward a new method of constructing Fiat-Shamir-like signature schemes that yields better "exact security" than the original Fiat-Shamir method. (We also point o...
Silvio Micali, Leonid Reyzin
CCS
2001
ACM
13 years 9 months ago
Practical forward secure group signature schemes
A group signature scheme allows a group member to sign messages anonymously on behalf of the group, while in case of a dispute, a designated entity can reveal the identity of a si...
Dawn Xiaodong Song