From 3438e5d3ddf8444f0e31009ffbe8237ef3752c22 Mon Sep 17 00:00:00 2001
From: Alexander Harkness <bearbin@gmail.com>
Date: Sun, 24 Nov 2013 14:21:13 +0000
Subject: move cryptopp into lib

---
 CryptoPP/gf2_32.cpp | 99 -----------------------------------------------------
 1 file changed, 99 deletions(-)
 delete mode 100644 CryptoPP/gf2_32.cpp

(limited to 'CryptoPP/gf2_32.cpp')

diff --git a/CryptoPP/gf2_32.cpp b/CryptoPP/gf2_32.cpp
deleted file mode 100644
index ae4874a40..000000000
--- a/CryptoPP/gf2_32.cpp
+++ /dev/null
@@ -1,99 +0,0 @@
-// gf2_32.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-#include "misc.h"
-#include "gf2_32.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-GF2_32::Element GF2_32::Multiply(Element a, Element b) const
-{
-	word32 table[4];
-	table[0] = 0;
-	table[1] = m_modulus;
-	if (a & 0x80000000)
-	{
-		table[2] = m_modulus ^ (a<<1);
-		table[3] = a<<1;
-	}
-	else
-	{
-		table[2] = a<<1;
-		table[3] = m_modulus ^ (a<<1);
-	}
-
-#if CRYPTOPP_FAST_ROTATE(32)
-	b = rotrFixed(b, 30U);
-	word32 result = table[b&2];
-
-	for (int i=29; i>=0; --i)
-	{
-		b = rotlFixed(b, 1U);
-		result = (result<<1) ^ table[(b&2) + (result>>31)];
-	}
-
-	return (b&1) ? result ^ a : result;
-#else
-	word32 result = table[(b>>30) & 2];
-
-	for (int i=29; i>=0; --i)
-		result = (result<<1) ^ table[((b>>i)&2) + (result>>31)];
-
-	return (b&1) ? result ^ a : result;
-#endif
-}
-
-GF2_32::Element GF2_32::MultiplicativeInverse(Element a) const
-{
-	if (a <= 1)		// 1 is a special case
-		return a;
-
-	// warning - don't try to adapt this algorithm for another situation
-	word32 g0=m_modulus, g1=a, g2=a;
-	word32 v0=0, v1=1, v2=1;
-
-	assert(g1);
-
-	while (!(g2 & 0x80000000))
-	{
-		g2 <<= 1;
-		v2 <<= 1;
-	}
-
-	g2 <<= 1;
-	v2 <<= 1;
-
-	g0 ^= g2;
-	v0 ^= v2;
-
-	while (g0 != 1)
-	{
-		if (g1 < g0 || ((g0^g1) < g0 && (g0^g1) < g1))
-		{
-			assert(BitPrecision(g1) <= BitPrecision(g0));
-			g2 = g1;
-			v2 = v1;
-		}
-		else
-		{
-			assert(BitPrecision(g1) > BitPrecision(g0));
-			g2 = g0; g0 = g1; g1 = g2;
-			v2 = v0; v0 = v1; v1 = v2;
-		}
-
-		while ((g0^g2) >= g2)
-		{
-			assert(BitPrecision(g0) > BitPrecision(g2));
-			g2 <<= 1;
-			v2 <<= 1;
-		}
-
-		assert(BitPrecision(g0) == BitPrecision(g2));
-		g0 ^= g2;
-		v0 ^= v2;
-	}
-
-	return v0;
-}
-
-NAMESPACE_END
-- 
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