ICICS
2003
Springer
14 years 5 months ago
2003
Springer
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 fashion. In case of a dispute, however, a des...
ICCSA
2005
Springer
14 years 6 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...