204 search results - page 1 / 41 » On Provably Secure Time-Stamping Schemes |
ASIACRYPT
2004
Springer
13 years 10 months ago
2004
Springer
Abstract. It is almost a folklore-knowledge that hash-based time-stamping schemes are secure if the underlying hash function is collisionresistant but still no rigorous proofs have...
ISW
2005
Springer
13 years 10 months ago
2005
Springer
Abstract. We present a universally composable time-stamping scheme based on universal one-way hash functions. The model we use contains an ideal auditing functionality (implementab...
ACNS
2006
Springer
13 years 11 months ago
2006
Springer
We study the influence of collision-finding attacks on the security of time-stamping schemes. We distinguish between client-side hash functions used to shorten the documents befo...
PKC
2000
Springer
13 years 8 months ago
2000
Springer
Abstract. Efficient secure time-stamping schemes employ a 2-level approach in which the time-stamping service operates in rounds. We say that a time-stamping service is accountable...
SEC
2003
13 years 6 months ago
2003
Secure perimeter schemes (e.g. DRM) and tracing traitor schemes (e.g. watermarking, audit logging) strive to mitigate the problems of content escaping the control of the rights ho...