| Presentation | 2009-03-13 Magnetic Near Field Measurement of Cryptographic LSI using On-Chip Integrated Micro Magnetic Field Probe Hideki TORIZUKA, Masahiro YAMAGUCHI, Takeshi SUGAWARA, Naofumi HOMMA, Akashi SATOH, Takafumi AOKI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Increasingly a side channel attack which is to break a cryptographic key using the electromagnetic radiation and power consumption from the cryptographic module regard as a dangerous. In this paper, the magnetic near field of cryptographic LSI was measured using the on-chip integrated micro magnetic field probe with a shielded-loop coil. As a result, the high frequency current in cryptographic LSI was able to be shown as a distribution map. Moreover, when the cryptographic key was estimated by differential electromagnetic analysis, the time of the key presumption is earlier than a place away from the cryptographic IP core, and it has been found that the vulnerability of the cryptographic LSI is seen on the core. It was confirmed that the magnetic near field was able to be suppressed by putting a magnetic film on the cryptographic LSI, and it became a means to protect cryptographic LSI from side channel attack. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Side channel attack / Shielded loop coil / Magnetic near field / Differential electromagnetic analysis / Magnetic film / Magnetic shield |
| Paper # | EMCJ2008-120 |
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| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 2009/3/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electromagnetic Compatibility (EMCJ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Magnetic Near Field Measurement of Cryptographic LSI using On-Chip Integrated Micro Magnetic Field Probe |
| Sub Title (in English) | |
| Keyword(1) | Side channel attack |
| Keyword(2) | Shielded loop coil |
| Keyword(3) | Magnetic near field |
| Keyword(4) | Differential electromagnetic analysis |
| Keyword(5) | Magnetic film |
| Keyword(6) | Magnetic shield |
| 1st Author's Name | Hideki TORIZUKA |
| 1st Author's Affiliation | Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Masahiro YAMAGUCHI |
| 2nd Author's Affiliation | Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Takeshi SUGAWARA |
| 3rd Author's Affiliation | Graduate School of Information Science, Tohoku University |
| 4th Author's Name | Naofumi HOMMA |
| 4th Author's Affiliation | Graduate School of Information Science, Tohoku University |
| 5th Author's Name | Akashi SATOH |
| 5th Author's Affiliation | Advanced Industrial Science and Technology |
| 6th Author's Name | Takafumi AOKI |
| 6th Author's Affiliation | Graduate School of Information Science, Tohoku University |
| Date | 2009-03-13 |
| Paper # | EMCJ2008-120 |
| Volume (vol) | vol.108 |
| Number (no) | 482 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |