From cb4a46e7fbe62d788e66ed6121c717a2d22a4d7c Mon Sep 17 00:00:00 2001
From: watcherhd <watcherhd@e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb>
Date: Thu, 21 Apr 2011 14:14:52 +0000
Subject: svn.miranda.im is moving to a new home!

git-svn-id: http://miranda-plugins.googlecode.com/svn/trunk@7 e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb
---
 cryptopp/crypto/gf256.cpp | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 cryptopp/crypto/gf256.cpp

(limited to 'cryptopp/crypto/gf256.cpp')

diff --git a/cryptopp/crypto/gf256.cpp b/cryptopp/crypto/gf256.cpp
new file mode 100644
index 0000000..3649f75
--- /dev/null
+++ b/cryptopp/crypto/gf256.cpp
@@ -0,0 +1,34 @@
+// gf256.cpp - written and placed in the public domain by Wei Dai
+
+#include "pch.h"
+#include "gf256.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+GF256::Element GF256::Multiply(Element a, Element b) const
+{
+	word result = 0, t = b;
+
+	for (unsigned int i=0; i<8; i++)
+	{
+		result <<= 1;
+		if (result & 0x100)
+			result ^= m_modulus;
+
+		t <<= 1;
+		if (t & 0x100)
+			result ^= a;
+	}
+
+	return (GF256::Element) result;
+}
+
+GF256::Element GF256::MultiplicativeInverse(Element a) const
+{
+	Element result = a;
+	for (int i=1; i<7; i++)
+		result = Multiply(Square(result), a);
+	return Square(result);
+}
+
+NAMESPACE_END
-- 
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