| Presentation | 2013-10-08 Scan-based Attack on the LED Block Cipher Using Scan Signatures Mika FUJISHIRO, Masao YANAGISAWA, Nozomu TOGAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | LED (Light Encryption Device) block cipher, one of lightweight block ciphers, is very compact in hardware. Its encryption process is composed of AES-like rounds. Recently, scan-based side-channel attacks are reported. It retrieves the secret information inside the cryptosystem utilizing scan chains, one of design-for-test techniques. In this paper, a scan-based attack method on the LED block cipher using scan signatures is proposed. In our proposed method, we focus on a particular 16-bit position in scanned data obtained from an LED LSI and retrieve its secret key using scan signatures. Experimental results show that our proposed method successfully retrieves its 64-bit secret key using 73 plaintexts on average. These experimental results also show the key is successfully retrieved even if the scan chain includes additional some 4000 1-bit registers. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LED / Light Encryption Device / side-channel attacks / scan chain / scan-based attack |
| Paper # | VLD2013-55,ICD2013-79,IE2013-55 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 2013/9/30(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| 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 on the LED Block Cipher Using Scan Signatures |
| Sub Title (in English) | |
| Keyword(1) | LED |
| Keyword(2) | Light Encryption Device |
| Keyword(3) | side-channel attacks |
| Keyword(4) | scan chain |
| Keyword(5) | scan-based attack |
| 1st Author's Name | Mika FUJISHIRO |
| 1st Author's Affiliation | Dept. of Computer Science and Engineering, Waseda University() |
| 2nd Author's Name | Masao YANAGISAWA |
| 2nd Author's Affiliation | Dept. of Computer Science and Engineering, Waseda University |
| 3rd Author's Name | Nozomu TOGAWA |
| 3rd Author's Affiliation | Dept. of Computer Science and Engineering, Waseda University |
| Date | 2013-10-08 |
| Paper # | VLD2013-55,ICD2013-79,IE2013-55 |
| Volume (vol) | vol.113 |
| Number (no) | 236 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |