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Re: RC4
Hi,
>I wasn't aware that you could copyright an algorithm. Patent, yes, but not
>copyright. Intellectual property meens secret, right? Aren't there any
>precendence cases involving propriety schemes that are reverse engineered?
Game cartridges (I think sega was involved)
Wolfgang
---
Dipl.-Wirtsch.-Inf. Voice: +49 261 6509 173
Wolfgang Roeckelein Fax: +49 261 6509 179
WHU Koblenz E-Mail: [email protected]
Burgplatz 2 (NeXTmail ok)
D-56179 Vallendar WWW: http://www.whu-koblenz.de/~wolfgang/
Germany
--rsa--------------------------------8<-------------------------------------
#!/usr/local/bin/perl -s-- -export-a-crypto-system-sig -RSA-in-3-lines-PERL
($k,$n)=@ARGV;$m=unpack(H.$w,$m."\0"x$w),$_=`echo "16do$w 2+4Oi0$d*-^1[d2%
Sa2/d0<X+d*La1=z\U$n%0]SX$k"[$m*]\EszlXx++p|dc`,s/^.|\W//g,print pack('H*'
,$_)while read(STDIN,$m,($w=2*$d-1+length($n||die"$0 [-d] k n\n")&~1)/2)
-------------------------------------8<-------------------------------------
TRY: echo squeamish ossifrage | rsa -e 3 7537d365 | rsa -d 4e243e33 7537d365
Residents of the USA & France *MUST NOT* include this .sig if following up!
*** Residents of France & Russia *MUST NOT* make any use of this -sig ! ***