| Presentation | 2012-09-21 Pilot Lamps can Serve as Side Channels Shohei Saito, Tsutomu Matsumoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Measuring microscopic variation of physical quantity such as power consumption or electromagnetic emanation of cryptographic hardware may be utilized to the so-called side channel attacks for estimating inside information. We have pointed out that if the cryptographic hardware has LED pilot lamps or LED indicators then they can serve as side channels. Namely the LEDs may leak inside information of cryptographic hardware. In this note we prove it by conducting two experiments for a single-chip micro-controller (AVR) with a LED pilot lamp. First, we confirm that for a data processed inside the micro-controller chip its Hamming weight is related to the brightness of LED. Second, we reveal a secret key of AES (Advanced Encryption Standard) implemented in AVR by analyzing the measured brightness of LED by CPA (Correlation Power Analysis). In conclusion we should pay attention to the fact when implementing LEDs on cryptographic hardware. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cryptographic Hardware / Information Security / Side Channel Attack / Pilot Lamp / LED / AVR / CPA |
| Paper # | ISEC2012-54 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2012/9/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Assistant | |
| 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) | Pilot Lamps can Serve as Side Channels |
| Sub Title (in English) | |
| Keyword(1) | Cryptographic Hardware |
| Keyword(2) | Information Security |
| Keyword(3) | Side Channel Attack |
| Keyword(4) | Pilot Lamp |
| Keyword(5) | LED |
| Keyword(6) | AVR |
| Keyword(7) | CPA |
| 1st Author's Name | Shohei Saito |
| 1st Author's Affiliation | Graduate School of Environment and Information Sciences Yokohama National University() |
| 2nd Author's Name | Tsutomu Matsumoto |
| 2nd Author's Affiliation | Graduate School of Environment and Information Sciences Yokohama National University |
| Date | 2012-09-21 |
| Paper # | ISEC2012-54 |
| Volume (vol) | vol.112 |
| Number (no) | 211 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |