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/cmac.cpp | 122 ------------------------------------------------------
 1 file changed, 122 deletions(-)
 delete mode 100644 CryptoPP/cmac.cpp

(limited to 'CryptoPP/cmac.cpp')

diff --git a/CryptoPP/cmac.cpp b/CryptoPP/cmac.cpp
deleted file mode 100644
index a31d5f8b0..000000000
--- a/CryptoPP/cmac.cpp
+++ /dev/null
@@ -1,122 +0,0 @@
-// cmac.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-
-#ifndef CRYPTOPP_IMPORTS
-
-#include "cmac.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-static void MulU(byte *k, unsigned int length)
-{
-	byte carry = 0;
-
-	for (int i=length-1; i>=1; i-=2)
-	{
-		byte carry2 = k[i] >> 7;
-		k[i] += k[i] + carry;
-		carry = k[i-1] >> 7;
-		k[i-1] += k[i-1] + carry2;
-	}
-
-	if (carry)
-	{
-		switch (length)
-		{
-		case 8:
-			k[7] ^= 0x1b;
-			break;
-		case 16:
-			k[15] ^= 0x87;
-			break;
-		case 32:
-			k[30] ^= 4; 
-			k[31] ^= 0x23;
-			break;
-		default:
-			throw InvalidArgument("CMAC: " + IntToString(length) + " is not a supported cipher block size");
-		}
-	}
-}
-
-void CMAC_Base::UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params)
-{
-	BlockCipher &cipher = AccessCipher();
-	unsigned int blockSize = cipher.BlockSize();
-
-	cipher.SetKey(key, length, params);
-	m_reg.CleanNew(3*blockSize);
-	m_counter = 0;
-
-	cipher.ProcessBlock(m_reg, m_reg+blockSize);
-	MulU(m_reg+blockSize, blockSize);
-	memcpy(m_reg+2*blockSize, m_reg+blockSize, blockSize);
-	MulU(m_reg+2*blockSize, blockSize);
-}
-
-void CMAC_Base::Update(const byte *input, size_t length)
-{
-	if (!length)
-		return;
-
-	BlockCipher &cipher = AccessCipher();
-	unsigned int blockSize = cipher.BlockSize();
-
-	if (m_counter > 0)
-	{
-		unsigned int len = UnsignedMin(blockSize - m_counter, length);
-		xorbuf(m_reg+m_counter, input, len);
-		length -= len;
-		input += len;
-		m_counter += len;
-
-		if (m_counter == blockSize && length > 0)
-		{
-			cipher.ProcessBlock(m_reg);
-			m_counter = 0;
-		}
-	}
-
-	if (length > blockSize)
-	{
-		assert(m_counter == 0);
-		size_t leftOver = 1 + cipher.AdvancedProcessBlocks(m_reg, input, m_reg, length-1, BlockTransformation::BT_DontIncrementInOutPointers|BlockTransformation::BT_XorInput);
-		input += (length - leftOver);
-		length = leftOver;
-	}
-
-	if (length > 0)
-	{
-		assert(m_counter + length <= blockSize);
-		xorbuf(m_reg+m_counter, input, length);
-		m_counter += (unsigned int)length;
-	}
-
-	assert(m_counter > 0);
-}
-
-void CMAC_Base::TruncatedFinal(byte *mac, size_t size)
-{
-	ThrowIfInvalidTruncatedSize(size);
-
-	BlockCipher &cipher = AccessCipher();
-	unsigned int blockSize = cipher.BlockSize();
-
-	if (m_counter < blockSize)
-	{
-		m_reg[m_counter] ^= 0x80;
-		cipher.AdvancedProcessBlocks(m_reg, m_reg+2*blockSize, m_reg, blockSize, BlockTransformation::BT_DontIncrementInOutPointers|BlockTransformation::BT_XorInput);
-	}
-	else
-		cipher.AdvancedProcessBlocks(m_reg, m_reg+blockSize, m_reg, blockSize, BlockTransformation::BT_DontIncrementInOutPointers|BlockTransformation::BT_XorInput);
-
-	memcpy(mac, m_reg, size);
-
-	m_counter = 0;
-	memset(m_reg, 0, blockSize);
-}
-
-NAMESPACE_END
-
-#endif
-- 
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