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Photuris // Variable-Precision numbers




v_0 is the least significant bit, so it has significance 2^0 = 1; the 
formula is correct as I wrote it, I believe...

	Ron Rivest
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Date: Tue, 17 Oct 1995 08:55:26 -0400
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To: rivest@theory.lcs.mit.edu (Ron Rivest)
From: naganand@ftp.com (Naganand Doraswamy)
Subject: Re: Photuris // Variable-Precision numbers

Ron,

Quick clarification on the formula you posted in IP security mailing list.

>	V = .....v_5 v_4 v_3 v_2 v_1 v_0
>Then the answer we want can be represented as X, computed by the program:
>	X = Sum_{0<=i<S} v_i * 2^i

Which is the Most Significant Bit in V, is it v_n or v_0, if it is v_n then
the formula would be
        X= Sum_{0<=i<S} v_(S-i-1) * 2^i

Am I missing something?

Thanks,

--Naganand
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