| Presentation | 1998/11/20 Classification and Security of Off-line Electronic Money Systems Shingo MIYAZAKI, Kouichi SAKURAI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the previous off-line e-money systems, a numerous of crucial secret data such as the knowledge of key for issuing money and various information (ID, public key, etc.) related to users are centralized in a bank. So, in this paper, the security of the off-line e-money against the malicious bank is discussed. As the guide, we classify the known e-money systems based on the Chaum-Fiat-Naor paradigm into four types. Then, we propose two insider attacks of framing and issuing forged certification. In addition, the security of which systems depends on mutual verification among tamper-free divices or reliance of CA is discussed. From the above analysis, we consider the requirements of (ideally) secure e-money systems against various attacks discussed in this paper. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | off-line e-money / anonymity / double-spending / trusted third authorities / insider attack |
| Paper # | ISEC98-45 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 1998/11/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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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) | Classification and Security of Off-line Electronic Money Systems |
| Sub Title (in English) | |
| Keyword(1) | off-line e-money |
| Keyword(2) | anonymity |
| Keyword(3) | double-spending |
| Keyword(4) | trusted third authorities |
| Keyword(5) | insider attack |
| 1st Author's Name | Shingo MIYAZAKI |
| 1st Author's Affiliation | Department of Computer Science and Communication Engineering, Kyushu University() |
| 2nd Author's Name | Kouichi SAKURAI |
| 2nd Author's Affiliation | Department of Computer Science and Communication Engineering, Kyushu University |
| Date | 1998/11/20 |
| Paper # | ISEC98-45 |
| Volume (vol) | vol.98 |
| Number (no) | 426 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |