| Presentation | 1999/9/24 On the Weakness in M8 Encryption Algorithm Fumihiko SANO, Tsutomu MATSUMOTO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper disscuss cryptanaysis of M8, which is an encryption algorithm registerd in ISO9979. M8 is a symmetric block cipher, of which block size is 64-bit and variable rounds. It has a variable structure determined by system kyes. We discuss some weakness in the M8 encryption algorithm. There exist fixed point and opposite fixed point for some system keys. It show that M8 has equivalent keys and weak keys. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | symmetric block cipher / cryptanalysis / equivalent key / weak key / M8 |
| Paper # | ISEC99-42 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 1999/9/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| 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) | On the Weakness in M8 Encryption Algorithm |
| Sub Title (in English) | |
| Keyword(1) | symmetric block cipher |
| Keyword(2) | cryptanalysis |
| Keyword(3) | equivalent key |
| Keyword(4) | weak key |
| Keyword(5) | M8 |
| 1st Author's Name | Fumihiko SANO |
| 1st Author's Affiliation | Division of Artificial Environment and Systems YOKOHAMA NATIONAL UNIVERSITY() |
| 2nd Author's Name | Tsutomu MATSUMOTO |
| 2nd Author's Affiliation | SI Technology Center, Toshiba Corpration |
| Date | 1999/9/24 |
| Paper # | ISEC99-42 |
| Volume (vol) | vol.99 |
| Number (no) | 329 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |