Requesting feedback on patched RC4-variant

[Matthijs van Duin]

>Remember that the signal is being send using DSSS (Direct sequence 
>spread spectrum, similar to CDMA digital phones) and the chances of 
>an attacker being able to change just one bit, or a targeted 
>selection of bits, in a message, is essentially zero.

Maybe a middle-man attack, when the base station and the client are 
almost out of range?



>But you think that CBC mode of a (non-sucky) block cipher is 
>adequate protection? Sigh.

I never suggested it was adequate. I was just wondering how much my 
changes influence the security of the algorithm, especially in 
relation to the bit-toggle problem.

  -xmath

PS I tried it today.. plain RC4 can excellently be executed manually 
(base 52 or 26, instead of 256) using a deck of cards :-)


Matthijs van Duin
- PGP Key: 0xB6205CCB   <finger://PGPkey_DH@hmvd.cds.nl> -
- FP: D73C 9EE3 5F6B E5D5 8E19  2CBE 4648 8C3E B620 5CCB -



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