| Presentation | 2011/10/17 Scan-based Attack against DES Cryptosystems Independent of Scan-structure HIROKAZU KODERA, MASAO YANGISAWA, Nozomu TOGAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Side-channel attacks against crypto modules and LSIs become a practical threat these days. Especially, a scan-based attack which retrieves secret keys from scan data is considered to be one of the strongest side-channel attacks. In this paper, a scan-based attack method against DES cryptosystems is proposed. In our method, several plain texts are inputted into a DES module. After that, an attacker retrieves a secret key by observing a specific bit line of these scanned data. Because the values of a specific bit line dependent on the secret key, an attacker can analyze secret key using these values. Even when an attacker does not know scan chain structure implemented on a DES module and even when scan chain includes registers other than DES crypto modules, our proposed method can successfully retrieve its secret key. Several Experimental evaluations are demonstrated to confirm the effectiveness of our proposed method. |
| Keyword(in Japanese) | (See Japanese page) |
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| Paper # | Vol.2011-SLDM-152 No.11 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 2011/10/17(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Scan-based Attack against DES Cryptosystems Independent of Scan-structure |
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| 1st Author's Name | HIROKAZU KODERA |
| 1st Author's Affiliation | Dept. of Computer Science and Engineering, Waseda University() |
| 2nd Author's Name | MASAO YANGISAWA |
| 2nd Author's Affiliation | Dept. of Electronic and Photonic Systems, Waseda University |
| 3rd Author's Name | Nozomu TOGAWA |
| 3rd Author's Affiliation | Dept. of Computer Science and Engineering, Waseda University |
| Date | 2011/10/17 |
| Paper # | Vol.2011-SLDM-152 No.11 |
| Volume (vol) | vol.111 |
| Number (no) | 258 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |