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/eprecomp.cpp | 112 -----------------------------------------------
 1 file changed, 112 deletions(-)
 delete mode 100644 cryptopp562/eprecomp.cpp

(limited to 'cryptopp562/eprecomp.cpp')

diff --git a/cryptopp562/eprecomp.cpp b/cryptopp562/eprecomp.cpp
deleted file mode 100644
index a061cf6..0000000
--- a/cryptopp562/eprecomp.cpp
+++ /dev/null
@@ -1,112 +0,0 @@
-// eprecomp.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-
-#ifndef CRYPTOPP_IMPORTS
-
-#include "eprecomp.h"
-#include "asn.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-template <class T> void DL_FixedBasePrecomputationImpl<T>::SetBase(const DL_GroupPrecomputation<Element> &group, const Element &i_base)
-{
-	m_base = group.NeedConversions() ? group.ConvertIn(i_base) : i_base;
-
-	if (m_bases.empty() || !(m_base == m_bases[0]))
-	{
-		m_bases.resize(1);
-		m_bases[0] = m_base;
-	}
-
-	if (group.NeedConversions())
-		m_base = i_base;
-}
-
-template <class T> void DL_FixedBasePrecomputationImpl<T>::Precompute(const DL_GroupPrecomputation<Element> &group, unsigned int maxExpBits, unsigned int storage)
-{
-	assert(m_bases.size() > 0);
-	assert(storage <= maxExpBits);
-
-	if (storage > 1)
-	{
-		m_windowSize = (maxExpBits+storage-1)/storage;
-		m_exponentBase = Integer::Power2(m_windowSize);
-	}
-
-	m_bases.resize(storage);
-	for (unsigned i=1; i<storage; i++)
-		m_bases[i] = group.GetGroup().ScalarMultiply(m_bases[i-1], m_exponentBase);
-}
-
-template <class T> void DL_FixedBasePrecomputationImpl<T>::Load(const DL_GroupPrecomputation<Element> &group, BufferedTransformation &bt)
-{
-	BERSequenceDecoder seq(bt);
-	word32 version;
-	BERDecodeUnsigned<word32>(seq, version, INTEGER, 1, 1);
-	m_exponentBase.BERDecode(seq);
-	m_windowSize = m_exponentBase.BitCount() - 1;
-	m_bases.clear();
-	while (!seq.EndReached())
-		m_bases.push_back(group.BERDecodeElement(seq));
-	if (!m_bases.empty() && group.NeedConversions())
-		m_base = group.ConvertOut(m_bases[0]);
-	seq.MessageEnd();
-}
-
-template <class T> void DL_FixedBasePrecomputationImpl<T>::Save(const DL_GroupPrecomputation<Element> &group, BufferedTransformation &bt) const
-{
-	DERSequenceEncoder seq(bt);
-	DEREncodeUnsigned<word32>(seq, 1);	// version
-	m_exponentBase.DEREncode(seq);
-	for (unsigned i=0; i<m_bases.size(); i++)
-		group.DEREncodeElement(seq, m_bases[i]);
-	seq.MessageEnd();
-}
-
-template <class T> void DL_FixedBasePrecomputationImpl<T>::PrepareCascade(const DL_GroupPrecomputation<Element> &i_group, std::vector<BaseAndExponent<Element> > &eb, const Integer &exponent) const
-{
-	const AbstractGroup<T> &group = i_group.GetGroup();
-
-	Integer r, q, e = exponent;
-	bool fastNegate = group.InversionIsFast() && m_windowSize > 1;
-	unsigned int i;
-
-	for (i=0; i+1<m_bases.size(); i++)
-	{
-		Integer::DivideByPowerOf2(r, q, e, m_windowSize);
-		std::swap(q, e);
-		if (fastNegate && r.GetBit(m_windowSize-1))
-		{
-			++e;
-			eb.push_back(BaseAndExponent<Element>(group.Inverse(m_bases[i]), m_exponentBase - r));
-		}
-		else
-			eb.push_back(BaseAndExponent<Element>(m_bases[i], r));
-	}
-	eb.push_back(BaseAndExponent<Element>(m_bases[i], e));
-}
-
-template <class T> T DL_FixedBasePrecomputationImpl<T>::Exponentiate(const DL_GroupPrecomputation<Element> &group, const Integer &exponent) const
-{
-	std::vector<BaseAndExponent<Element> > eb;	// array of segments of the exponent and precalculated bases
-	eb.reserve(m_bases.size());
-	PrepareCascade(group, eb, exponent);
-	return group.ConvertOut(GeneralCascadeMultiplication<Element>(group.GetGroup(), eb.begin(), eb.end()));
-}
-
-template <class T> T 
-	DL_FixedBasePrecomputationImpl<T>::CascadeExponentiate(const DL_GroupPrecomputation<Element> &group, const Integer &exponent, 
-		const DL_FixedBasePrecomputation<T> &i_pc2, const Integer &exponent2) const
-{
-	std::vector<BaseAndExponent<Element> > eb;	// array of segments of the exponent and precalculated bases
-	const DL_FixedBasePrecomputationImpl<T> &pc2 = static_cast<const DL_FixedBasePrecomputationImpl<T> &>(i_pc2);
-	eb.reserve(m_bases.size() + pc2.m_bases.size());
-	PrepareCascade(group, eb, exponent);
-	pc2.PrepareCascade(group, eb, exponent2);
-	return group.ConvertOut(GeneralCascadeMultiplication<Element>(group.GetGroup(), eb.begin(), eb.end()));
-}
-
-NAMESPACE_END
-
-#endif
-- 
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