| Presentation | 2008-02-08 An evaluation of encryption LSI testability against scan based attack Yuma ITO, Masayoshi YOSHIMURA, Hiroto YASUURA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, an encryption LSI is embedded in a variety of digital products for security and copyright protection. Most LSI including encryption LSI has a scan path for a test. However, there is a risk that the secret information is leaked from a scan path. In this paper, we show the trade-off between testability and security by changing the composition of scan path. We insert various scan path patterns in a hardware implementation of the DES, and evaluate these testability and security. In addition, we propose a countermeasure against the scan based attack, and evaluate the countermeasure from the viewpoints of testability and security. The proposed countermeasure can achieve about 98% of high test coverage with preventing scan based attack. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | scan based attack / DES / testability / security |
| Paper # | DC2007-76 |
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| Committee | DC |
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| Conference Date | 2008/2/1(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Dependable Computing (DC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An evaluation of encryption LSI testability against scan based attack |
| Sub Title (in English) | |
| Keyword(1) | scan based attack |
| Keyword(2) | DES |
| Keyword(3) | testability |
| Keyword(4) | security |
| 1st Author's Name | Yuma ITO |
| 1st Author's Affiliation | Department of Electrical Engineering & Computer Science, Kyushu University() |
| 2nd Author's Name | Masayoshi YOSHIMURA |
| 2nd Author's Affiliation | Faculty of Information Science and Electrical Engineering, Kyushu University |
| 3rd Author's Name | Hiroto YASUURA |
| 3rd Author's Affiliation | Faculty of Information Science and Electrical Engineering, Kyushu University |
| Date | 2008-02-08 |
| Paper # | DC2007-76 |
| Volume (vol) | vol.107 |
| Number (no) | 482 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |