| Presentation | 1998/5/15 Higher Order Differential Attack of Block Ciphers MISTY1, 2 Makoto Sugita, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Modified Higher Order Differential Attack is proposed. By this attack, we analyze the block cipher MISTY1, 2 Without FL-function. We show (6, 3, 3)-round MISTY2 (newer or older version) and (4, 3, 3)-round MISTY1 is not LRF and not secure as a cipher. Next we cryptanalyze the (5, 3, 3)-round MISTY2 without FL-function (older or newer version) and (5, 3, 3)-round MISTY1 without FL-function by this attack and succeeded in guessing the key. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MISTY Pseudorandomness / Locally random function / Modified Higher Order Differential Attack |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 1998/5/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| 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) | Higher Order Differential Attack of Block Ciphers MISTY1, 2 |
| Sub Title (in English) | |
| Keyword(1) | MISTY Pseudorandomness |
| Keyword(2) | Locally random function |
| Keyword(3) | Modified Higher Order Differential Attack |
| 1st Author's Name | Makoto Sugita |
| 1st Author's Affiliation | NTT Wireless Systems Laboratories() |
| Date | 1998/5/15 |
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| Volume (vol) | vol.98 |
| Number (no) | 48 |
| Page | pp.pp.- |
| #Pages | 10 |
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