[4145] in cryptography@c2.net mail archive
Arcfour (RC4) in Java
daemon@ATHENA.MIT.EDU (David R. Conrad)
Sat Feb 6 14:44:05 1999
Date: Sat, 6 Feb 1999 05:52:30 -0500 (EST)
From: "David R. Conrad" <drc@adni.net>
To: cryptography@c2.net
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I was implementing RC4 in java and I ran up against the no-unsigned-types
property of java. Thus I had to use ints rather than bytes for i and j
and for the S-box, and I had to sprinkle my code with masks &255 in some
places, and type casts in others.
The resulting code seems to work fine, but I feel a little uncomfortable
with the bletcherous way I've expressed such an elegant algorithm. Does
anybody know of a better way to do this in java? I suspect there isn't,
and I realize that using ints might be faster, anyway. Still, it irks me
whenever I think about it.
Lastly, to forestall confusion, I'd like to make clear that I'm no
relation to the "David R. Conrad <David_Conrad@isc.org>" who posted to the
list recently (passing odd, that).
David R. Conrad <drc@adni.net> PGP keys (0x1993E1AE and 0xA0B83D31):
DSS Fingerprint20 = 9942 E27C 3966 9FB8 5058 73A4 83CE 62EF 1993 E1AE
RSA Fingerprint16 = 1D F2 F3 90 DA CA 35 5D 91 E4 09 45 95 C8 20 F1
This message brought to you by the letter '6' and the number 0xDEADBEEF.
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=qHn/
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