Name
Abstract | ||
|---|---|---|
The aim of timestamping systems is to provide a proof-of-existence of a digital document at a given time. Such systems are important to ensure integrity and non-repudiation of digital data over time. Most of the existing timestamping schemes use the notions of round (a period of time) and round token (a single value aggregating the timestamping requests received during one round). Such schemes have the following drawbacks: (i) Clients who have submitted a timestamping request must wait for the end of the round before receiving their timestamping certificate (ii) TimeStamping Authorities (TSA) based on such schemes are discrete-time systems and provide relative temporal authentication only, i.e. all the documents submitted during the same round are timestamped with the same date and time. (iii) the TSA can tamper timestamps before the round token is published in a widely distributed media. In this paper, we define a new timestamping scheme which overcomes these drawbacks. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1007/978-3-540-89862-7_8 | ICISS |
Keywords | Field | DocType |
digital data,timestamping authorities,new timestamping scheme,timestamping request,following drawback,digital document,discrete-time system,absolute timestamps,existing timestamping scheme,timestamping certificate,timestamping system,short paper,secure round-based timestamping scheme,merkle tree | Timestamping,Authentication,Computer security,Computer science,Trusted timestamping,Merkle tree,Timestamp,Security token,Digital data,Certificate | Conference |
Citations | PageRank | References |
1 | 0.37 | 14 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Duc-Phong Le | 1 | 29 | 7.06 |
| Alexis Bonnecaze | 2 | 36 | 11.21 |
| Alban Gabillon | 3 | 220 | 28.65 |