Timeline for Are encryption algorithms with fixed-point free permutations inherently flawed?
Current License: CC BY-SA 4.0
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| Feb 21, 2019 at 12:04 | comment | added | Aleph | The Kaliski et. al. paper is from 1985, since then other results have appeared which are not consistent with the hypothesis that DES acts like a set of randomly chosen permutations (think LC). Sure, DES is not a "pure cipher", but that doesn't imply that it "acts like a set of randomly chosen permutations". I don't really understand how the Kaliski et. al. article illustrates what you're trying to say, since they show that DES does not have some specific properties (so you can't use those for distinguishing). | |
| Feb 21, 2019 at 9:20 | comment | added | kelalaka | Thanks. Kaliski at al claim that: Except for the weak key experiment, our results are consistent with the hypothesis that DES acts like a set of randomly chosen permutations. In particular, our results show with overwhelming confidence that DES is not pure. | |
| Feb 21, 2019 at 9:19 | history | edited | kelalaka | CC BY-SA 4.0 |
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| Feb 20, 2019 at 23:15 | comment | added | Aleph | To be fair, no concrete cipher with short key can correctly "model" an ideal cipher in arbitrary theoretical constructions. The Biryukov et. al. paper you link to shows a problem with using AES in Davies-Meyer -- and while the abstract says what you wrote, what they really mean is something like "theoretical constructions used in practice". I would suggest a reference to the (not related key) biclique attack here. (I think that would illustrate your point better. Also, DES doesn't act like a set of randomly chosen permutations.) | |
| Feb 20, 2019 at 21:12 | history | edited | kelalaka | CC BY-SA 4.0 |
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| Feb 20, 2019 at 18:11 | history | edited | kelalaka | CC BY-SA 4.0 |
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| Feb 20, 2019 at 17:31 | history | edited | kelalaka | CC BY-SA 4.0 |
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| Feb 20, 2019 at 17:23 | history | edited | kelalaka | CC BY-SA 4.0 |
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| Feb 20, 2019 at 17:15 | history | edited | kelalaka | CC BY-SA 4.0 |
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| Feb 20, 2019 at 16:47 | history | answered | kelalaka | CC BY-SA 4.0 |