204 search results - page 21 / 41 » On Provably Secure Time-Stamping Schemes |
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
Abstract— An important issue in mobile commerce (mcommerce) is to exchange digital data between two distributed parties in an efficient and fair manner. In this paper, a lightwe...
DCC
2006
IEEE
14 years 7 months ago
2006
IEEE
We describe a simple and novel cryptographic construction that we refer to as a fuzzy vault. A player Alice may place a secret value in a fuzzy vault and "lock" it using ...
ASIACRYPT
2003
Springer
14 years 1 months ago
2003
Springer
Constructing practical and provably secure group signature schemes has been a very active research topic in recent years. A group signature can be viewed as a digital signature wit...
CCS
2007
ACM
14 years 2 months ago
2007
ACM
In this work we re-visit the question of building cryptographic primitives that remain secure even when queried on inputs that depend on the secret key. This was investigated by B...
ACNS
2008
Springer
14 years 2 months ago
2008
Springer
We describe two new paradigms on how to obtain ordinary signatures that are secure against existential forgery under adaptively chosen message attacks (fully-secure, in short), fro...