A Two-level Time-Stamping System
| Autor: | Alban Gabillon, Jungsoo Byun |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Scheme (programming language)
Computer science business.industry Electronic document Value (computer science) Cryptography Stamping Digital library Computer security computer.software_genre Point (geometry) business Protocol (object-oriented programming) computer computer.programming_language Computer network |
| Zdroj: | IFIP Advances in Information and Communication Technology ISBN: 9780792373896 SEC |
| DOI: | 10.1007/0-306-46998-7_10 |
| Popis: | Time (---) Stamping is a cryptographic technique which allows us to prove that an electronic document existed at a certain point in time and that it has not been modified since then. Different time-stamping schemes have already been proposed. Most of them use the concept of trusted Time-stamping Authority (TSA). A TSA is in charge of time-stamping scheme using al Local Time-stamping System (LTS). The main idea can be summarised as follows: digests of the documents to be time-stamped are sent to a Local Time-stamping System (LTS) The LTS accumulates the digests into a round value using a round based protocol. The round value is then time-stamped by a trusted and official TSA. We show how this time-stamping scheme could be useful for an organisation such as a digital library or a company. |
| Databáze: | OpenAIRE |
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