179 search results - page 5 / 36 » On the Security of Some Proxy Blind Signature Schemes |
EUROCRYPT
2004
Springer
13 years 11 months ago
2004
Springer
For the last two decades the notion and implementations of proxy signatures have been used to allow transfer of digital signing power within some context (in order to enable flexi...
IJNSEC
2011
13 years 1 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 ...
IJNSEC
2008
13 years 6 months ago
2008
In a blind signature scheme, the user can get a signature sig(m) on message m generated from the signer's blind signature sig(m ) on blinded message m , but the signer can�...
ACISP
2003
Springer
13 years 10 months ago
2003
Springer
In some practical circumstances, the ability of a signer should be restricted. In group signature schemes, a group member may be allowed to generate signatures up to a certain numb...
EUROCRYPT
2001
Springer
13 years 11 months ago
2001
Springer
Abstract. Known practical blind signature schemes whose security against adaptive and parallel attacks can be proven in the random oracle model either need five data exchanges bet...