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In cryptography, FEAL (the Fast data Encipherment Algorithm) is a block cipher proposed as an alternative to the Data Encryption Standard (DES), and designed to be much faster in software. The Feistel based algorithm was first published in 1987 by Akihiro Shimizu and Shoji Miyaguchi from NTT. The cipher is susceptible to various forms of cryptanalysis…
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cryptanalysis differential attack miyaguchi cipher plaintexts feal-4 1990 known linear rounds feal-8 1991 first den chosen shimizu biham feistel 1988
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| FEAL | Block sizes | 64 bits | 1.00 | infobox |
| FEAL | Designers | Akihiro Shimizu and Shoji Miyaguchi (NTT) | 1.00 | infobox |
| FEAL | First published | FEAL-4 in 1987; FEAL-N/NX in 1990 | 1.00 | infobox |
| FEAL | Key sizes | 64 bits (FEAL), 128 bits (FEAL-NX) | 1.00 | infobox |
| FEAL | Rounds | Originally 4, then 8, then variable (recommended 32) | 1.00 | infobox |
| FEAL | Structure | Feistel network | 1.00 | infobox |
| FEAL | related to External links | The FEAL | 0.60 | section |
| FEAL | related to External links | Peter Gutmann | 0.60 | section |
| FEAL | related to External links | FEALUS | 0.60 | section |
| FEAL | related to External links | Archived | 0.60 | section |
| FEAL | related to External links | Wayback Machine | 0.60 | section |
| FEAL | related to References | Eli Biham | 0.60 | section |
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