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documentation fix (nw)

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Andreas Naive 2014-02-21 22:54:31 +00:00
parent 9694b53c0a
commit 2a069b04ae
1 changed files with 1 additions and 1 deletions
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src/mame/machine/naomim2.c
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@ -160,7 +160,7 @@ XOR of at most two "sources bits", being source bits the bits from the previous
The underlying block cipher has the same structure than the one used by the CPS-2 (Capcom Play System 2) and,
indeed, some of the used sboxes are exactly the same and appear in the same FN/round in both systems (this is not evident,
as you need to apply a bitswapping and some XORs to the input & output of the sboxes to get the same values due). However,
the key scheduling used by this implementation is much weaker than the CPS-2's one. Many s-boxes inputs are XORed with any
the key scheduling used by this implementation is much weaker than the CPS-2's one. Many s-boxes inputs aren't XORed with any
key bit.
Due to the small key-length, no sophisticated attacks are needed to recover the keys; a brute-force attack knowing just