| Presentation | 2002/3/12 A Hybrid Hardware Attack Surpasses Side Channel and Fault Attacks Katsuyuki OKEYA, Kouichi SAKURAI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a hybrid hardware attack (fault-power attack) combining side channel and fault attacks that is more powerful than either side channel or fault attack alone. A side channel attack is an attack that takes advantage of information leaked during execution of a cryptographic procedure. A fault attack is one that takes advantage of output when errors occur or incorrect values are inputted. The current elliptic scalar multiplication of the x-coordinate-only trick can prevent side channel attacks, but its ability to prevent fault attacks is unknown. We propose an elliptic scalar multiplication method using the x-coordinate-only trick, which is immune to known side channel and fault attacks. However, this countermeasure is vulnerable to the fault-power attack, which pins the pseudo-random number generator in the scalar multiplication using faults, and detects the scalar using power analysis. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Elliptic Curve Cryptosystem / Side Channel Attacks / Fault Attack / Fault-Power Attack / x-Coordinate-Only Trick |
| Paper # | ITS2001-151 |
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| Conference Information | |
| Committee | ITS |
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| Conference Date | 2002/3/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Intelligent Transport Systems Technology (ITS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Hybrid Hardware Attack Surpasses Side Channel and Fault Attacks |
| Sub Title (in English) | |
| Keyword(1) | Elliptic Curve Cryptosystem |
| Keyword(2) | Side Channel Attacks |
| Keyword(3) | Fault Attack |
| Keyword(4) | Fault-Power Attack |
| Keyword(5) | x-Coordinate-Only Trick |
| 1st Author's Name | Katsuyuki OKEYA |
| 1st Author's Affiliation | Hitachi, Ltd., Systems Development Laboratory() |
| 2nd Author's Name | Kouichi SAKURAI |
| 2nd Author's Affiliation | Graduate School of Information Science Electrical Engineering, Kyushu University |
| Date | 2002/3/12 |
| Paper # | ITS2001-151 |
| Volume (vol) | vol.101 |
| Number (no) | 732 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |