| Presentation | 1993/10/26 Analytical Known Plain-Text Attack for FEAL-6 Based on Bit-by-Bit Comparison Yukiyasu Tsunoo, Eiji Okamoto, Tomohiko Uematsu, Masahiro Manbo, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | FEAL-N proposed by NTT is a N-round block cipher which is well suited for a fast software execution.At the last SCIS93 in Japan, we presented an analytical known plaintext attack on the FEAL-4 data randomizer.Since the round function f of FEAL has an inverse function f^-1>,we studied an attack using the inverse function f^ -1> and key-independent intermediate messages. In this paper we extend our attack by applying a key-independent "bit-by-bit" relation instead of "byte-by-byte" relation in order to calculate the key-independent intermediate messages.Simulation results of the proposed "bit-by-bit" attack clarify the improvemen t of the computational complexity to obtain the intermediate messages. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | FEAL-N / block cipher / intermediate message / inverse function |
| Paper # | ISEC93-60 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 1993/10/26(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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| Paper Information | |
| Registration To | Information Security (ISEC) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analytical Known Plain-Text Attack for FEAL-6 Based on Bit-by-Bit Comparison |
| Sub Title (in English) | |
| Keyword(1) | FEAL-N |
| Keyword(2) | block cipher |
| Keyword(3) | intermediate message |
| Keyword(4) | inverse function |
| 1st Author's Name | Yukiyasu Tsunoo |
| 1st Author's Affiliation | School of Information Science,Japan Advanced Institute of Science and Technology() |
| 2nd Author's Name | Eiji Okamoto |
| 2nd Author's Affiliation | School of Information Science,Japan Advanced Institute of Science and Technology |
| 3rd Author's Name | Tomohiko Uematsu |
| 3rd Author's Affiliation | School of Information Science,Japan Advanced Institute of Science and Technology |
| 4th Author's Name | Masahiro Manbo |
| 4th Author's Affiliation | School of Information Science,Japan Advanced Institute of Science and Technology |
| Date | 1993/10/26 |
| Paper # | ISEC93-60 |
| Volume (vol) | vol.93 |
| Number (no) | 296 |
| Page | pp.pp.- |
| #Pages | 9 |
| Date of Issue | |