From 5494fc310acf0aabb9d828451331e44483eb21c7 Mon Sep 17 00:00:00 2001
From: Malfurious <m@lfurio.us>
Date: Mon, 21 Oct 2024 11:09:00 -0400
Subject: Remove Crypto++ library

The tracked version of Crypto++ is going on 10 years old and doesn't
always compile properly on modern tooling.

This removes the entire subdirectory as well as references to files in
the build script.  Due to the number of files touched by this commit, I
opt to add its replacement in the next commit.

Signed-off-by: Malfurious <m@lfurio.us>
---
 cryptopp562/cmac.cpp | 122 ---------------------------------------------------
 1 file changed, 122 deletions(-)
 delete mode 100644 cryptopp562/cmac.cpp

(limited to 'cryptopp562/cmac.cpp')

diff --git a/cryptopp562/cmac.cpp b/cryptopp562/cmac.cpp
deleted file mode 100644
index e8fa6fe..0000000
--- a/cryptopp562/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
-- 
cgit v1.2.3