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AFRICACRYPT
2010
Springer
14 years 5 months ago
2010
Springer
A fair blind signature is a blind signature with revocable anonymity and unlinkability, i.e., an authority can link an issuing session to the resulting signature and trace a signat...
ICICS
2007
Springer
14 years 5 months ago
2007
Springer
We propose a convertible undeniable signature scheme without random oracles. Our construction is based on the Waters signatures proposed in Eurocrypt 2005. The security of our sche...
DAM
2006
13 years 11 months ago
2006
We propose the concept of fine-grained forward-secure signature schemes. Such signature schemes not only provide non-repudiation w.r.t. past time periods the way ordinary forward-...
ASIACRYPT
2007
Springer
14 years 5 months ago
2007
Springer
We construct a new group signature scheme using bilinear groups. The group signature scheme is practical, both keys and group signatures consist of a constant number of group elem...
EUROCRYPT
2006
Springer
14 years 2 months ago
2006
Springer
We present the first efficient group signature scheme that is provably secure without random oracles. We achieve this result by combining provably secure hierarchical signatures i...