369 search results - page 1 / 74 » Security Analysis of Several Group Signature Schemes |
INDOCRYPT
2003
Springer
13 years 9 months ago
2003
Springer
At Eurocrypt’91, Chaum and van Heyst introduced the concept of group signature. In such a scheme, each group member is allowed to sign messages on behalf of a group anonymously. ...
ICCSA
2005
Springer
13 years 10 months ago
2005
Springer
In resent years, Popescu proposed several group signature schemes based on the Okamoto-Shiraishi assumption in [8–11], and claimed his schemes are secure. However, this paper dem...
ASIACRYPT
2006
Springer
13 years 8 months ago
2006
Springer
The group signature scheme [1], ACJT for short, is popular. In this paper we show that it is not secure. It does not satisfy exculpability. The group manager can sign on behalf of ...
ICISC
2003
13 years 6 months ago
2003
A group signature scheme allows a group member of a given group to sign messages on behalf of the group in an anonymous and unlinkable way. In case of a dispute, however, a design...
IJNSEC
2011
12 years 11 months ago
2011
In this paper, we reinvestigate the security analysis of blind signature scheme over braid groups proposed by Verma in 2008. A blind signature scheme is a cryptographic primitive ...