| Presentation | 2001/7/18 The Security Classes of Time Stamping Schemes Masashi UNE, Tsutomu MATSUMOTO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Time stamping is a technique to prove the existence of certain digital data prior to specific point in time.Under recent expansion of electronic commerce it has been widely realized to be a crucial technique to ensure integrity of digital data for a long time.This paper discusses sufficient conditions to detect alteration of time stamps on the basis of the framework for time stamping schemes proposed by Une and Matsumoto [9, 10].First, we clarify the sufficient condition in each time stamping scheme and show that there exist ten varieties of the conditions.Secondly, we define a "class"as a set of the schemes having the same sufficient condition and clarify relationships between the conditions.Finally, we apply our result to six existent time stamping schemes. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | time stamp / security class / security evaluation |
| Paper # | ISEC2001-38 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2001/7/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Information Security (ISEC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The Security Classes of Time Stamping Schemes |
| Sub Title (in English) | |
| Keyword(1) | time stamp |
| Keyword(2) | security class |
| Keyword(3) | security evaluation |
| 1st Author's Name | Masashi UNE |
| 1st Author's Affiliation | Graduate School of Engineering, Yokohama National University : Institute for Monetary and Ecomomic Studies, Bank of Japan() |
| 2nd Author's Name | Tsutomu MATSUMOTO |
| 2nd Author's Affiliation | Graduate School of Engineering, Yokohama National University : Graduate School of Environment and Information Sciences, Yokohama National University |
| Date | 2001/7/18 |
| Paper # | ISEC2001-38 |
| Volume (vol) | vol.101 |
| Number (no) | 214 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |