Merge branch 'mbedtls'

Replace Crypto++ 5.6.2 with Mbed TLS 3.6.0

Newer compilers are starting to show the age of the crypto library we've
been using, as it is sometimes a pain to recompile compass lately.  So,
the tracked version of Crypto++ was at least due for an upgrade.

However, I plan to soon begin reimplementing compass in C.  So, I'm
taking this opportunity to first just migrate the cryptography library
to a newer C alternative.  This branch does so, and integrates its use
into the current C++ version of compass.

* mbedtls:
  Remove unnecessary exception handler catch block
  Refactor random password generation to use mbedtls entropy source
  Refactor SHA256 function to use mbedtls
  Refactor AES functions to use mbedtls
  Add Mbedtls library
  Remove Crypto++ library

1 files changed, 0 insertions, 238 deletions

diff --git a/cryptopp562/basecode.cpp b/cryptopp562/basecode.cpp
deleted file mode 100644
index 0c98b22..0000000
--- a/cryptopp562/basecode.cpp
+++ /dev/null
@@ -1,238 +0,0 @@
-// basecode.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-
-#ifndef CRYPTOPP_IMPORTS
-
-#include "basecode.h"
-#include "fltrimpl.h"
-#include <ctype.h>
-
-NAMESPACE_BEGIN(CryptoPP)
-
-void BaseN_Encoder::IsolatedInitialize(const NameValuePairs &parameters)
-{
-	parameters.GetRequiredParameter("BaseN_Encoder", Name::EncodingLookupArray(), m_alphabet);
-
-	parameters.GetRequiredIntParameter("BaseN_Encoder", Name::Log2Base(), m_bitsPerChar);
-	if (m_bitsPerChar <= 0 || m_bitsPerChar >= 8)
-		throw InvalidArgument("BaseN_Encoder: Log2Base must be between 1 and 7 inclusive");
-
-	byte padding;
-	bool pad;
-	if (parameters.GetValue(Name::PaddingByte(), padding))
-		pad = parameters.GetValueWithDefault(Name::Pad(), true);
-	else
-		pad = false;
-	m_padding = pad ? padding : -1;
-
-	m_bytePos = m_bitPos = 0;
-
-	int i = 8;
-	while (i%m_bitsPerChar != 0)
-		i += 8;
-	m_outputBlockSize = i/m_bitsPerChar;
-
-	m_outBuf.New(m_outputBlockSize);
-}
-
-size_t BaseN_Encoder::Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
-{
-	FILTER_BEGIN;
-	while (m_inputPosition < length)
-	{
-		if (m_bytePos == 0)
-			memset(m_outBuf, 0, m_outputBlockSize);
-
-		{
-		unsigned int b = begin[m_inputPosition++], bitsLeftInSource = 8;
-		while (true)
-		{
-			assert(m_bitPos < m_bitsPerChar);
-			unsigned int bitsLeftInTarget = m_bitsPerChar-m_bitPos;
-			m_outBuf[m_bytePos] |= b >> (8-bitsLeftInTarget);
-			if (bitsLeftInSource >= bitsLeftInTarget)
-			{
-				m_bitPos = 0;
-				++m_bytePos;
-				bitsLeftInSource -= bitsLeftInTarget;
-				if (bitsLeftInSource == 0)
-					break;
-				b <<= bitsLeftInTarget;
-				b &= 0xff;
-			}
-			else
-			{
-				m_bitPos += bitsLeftInSource;
-				break;
-			}
-		}
-		}
-
-		assert(m_bytePos <= m_outputBlockSize);
-		if (m_bytePos == m_outputBlockSize)
-		{
-			int i;
-			for (i=0; i<m_bytePos; i++)
-			{
-				assert(m_outBuf[i] < (1 << m_bitsPerChar));
-				m_outBuf[i] = m_alphabet[m_outBuf[i]];
-			}
-			FILTER_OUTPUT(1, m_outBuf, m_outputBlockSize, 0);
-			
-			m_bytePos = m_bitPos = 0;
-		}
-	}
-	if (messageEnd)
-	{
-		if (m_bitPos > 0)
-			++m_bytePos;
-
-		int i;
-		for (i=0; i<m_bytePos; i++)
-			m_outBuf[i] = m_alphabet[m_outBuf[i]];
-
-		if (m_padding != -1 && m_bytePos > 0)
-		{
-			memset(m_outBuf+m_bytePos, m_padding, m_outputBlockSize-m_bytePos);
-			m_bytePos = m_outputBlockSize;
-		}
-		FILTER_OUTPUT(2, m_outBuf, m_bytePos, messageEnd);
-		m_bytePos = m_bitPos = 0;
-	}
-	FILTER_END_NO_MESSAGE_END;
-}
-
-void BaseN_Decoder::IsolatedInitialize(const NameValuePairs &parameters)
-{
-	parameters.GetRequiredParameter("BaseN_Decoder", Name::DecodingLookupArray(), m_lookup);
-
-	parameters.GetRequiredIntParameter("BaseN_Decoder", Name::Log2Base(), m_bitsPerChar);
-	if (m_bitsPerChar <= 0 || m_bitsPerChar >= 8)
-		throw InvalidArgument("BaseN_Decoder: Log2Base must be between 1 and 7 inclusive");
-
-	m_bytePos = m_bitPos = 0;
-
-	int i = m_bitsPerChar;
-	while (i%8 != 0)
-		i += m_bitsPerChar;
-	m_outputBlockSize = i/8;
-
-	m_outBuf.New(m_outputBlockSize);
-}
-
-size_t BaseN_Decoder::Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
-{
-	FILTER_BEGIN;
-	while (m_inputPosition < length)
-	{
-		unsigned int value;
-		value = m_lookup[begin[m_inputPosition++]];
-		if (value >= 256)
-			continue;
-
-		if (m_bytePos == 0 && m_bitPos == 0)
-			memset(m_outBuf, 0, m_outputBlockSize);
-
-		{
-			int newBitPos = m_bitPos + m_bitsPerChar;
-			if (newBitPos <= 8)
-				m_outBuf[m_bytePos] |= value << (8-newBitPos);
-			else
-			{
-				m_outBuf[m_bytePos] |= value >> (newBitPos-8);
-				m_outBuf[m_bytePos+1] |= value << (16-newBitPos);
-			}
-
-			m_bitPos = newBitPos;
-			while (m_bitPos >= 8)
-			{
-				m_bitPos -= 8;
-				++m_bytePos;
-			}
-		}
-
-		if (m_bytePos == m_outputBlockSize)
-		{
-			FILTER_OUTPUT(1, m_outBuf, m_outputBlockSize, 0);
-			m_bytePos = m_bitPos = 0;
-		}
-	}
-	if (messageEnd)
-	{
-		FILTER_OUTPUT(2, m_outBuf, m_bytePos, messageEnd);
-		m_bytePos = m_bitPos = 0;
-	}
-	FILTER_END_NO_MESSAGE_END;
-}
-
-void BaseN_Decoder::InitializeDecodingLookupArray(int *lookup, const byte *alphabet, unsigned int base, bool caseInsensitive)
-{
-	std::fill(lookup, lookup+256, -1);
-
-	for (unsigned int i=0; i<base; i++)
-	{
-		if (caseInsensitive && isalpha(alphabet[i]))
-		{
-			assert(lookup[toupper(alphabet[i])] == -1);
-			lookup[toupper(alphabet[i])] = i;
-			assert(lookup[tolower(alphabet[i])] == -1);
-			lookup[tolower(alphabet[i])] = i;
-		}
-		else
-		{
-			assert(lookup[alphabet[i]] == -1);
-			lookup[alphabet[i]] = i;
-		}
-	}
-}
-
-void Grouper::IsolatedInitialize(const NameValuePairs &parameters)
-{
-	m_groupSize = parameters.GetIntValueWithDefault(Name::GroupSize(), 0);
-	ConstByteArrayParameter separator, terminator;
-	if (m_groupSize)
-		parameters.GetRequiredParameter("Grouper", Name::Separator(), separator);
-	else
-		parameters.GetValue(Name::Separator(), separator);
-	parameters.GetValue(Name::Terminator(), terminator);
-
-	m_separator.Assign(separator.begin(), separator.size());
-	m_terminator.Assign(terminator.begin(), terminator.size());
-	m_counter = 0;
-}
-
-size_t Grouper::Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
-{
-	FILTER_BEGIN;
-	if (m_groupSize)
-	{
-		while (m_inputPosition < length)
-		{
-			if (m_counter == m_groupSize)
-			{
-				FILTER_OUTPUT(1, m_separator, m_separator.size(), 0);
-				m_counter = 0;
-			}
-
-			size_t len;
-			FILTER_OUTPUT2(2, len = STDMIN(length-m_inputPosition, m_groupSize-m_counter),
-				begin+m_inputPosition, len, 0);
-			m_inputPosition += len;
-			m_counter += len;
-		}
-	}
-	else
-		FILTER_OUTPUT(3, begin, length, 0);
-
-	if (messageEnd)
-	{
-		FILTER_OUTPUT(4, m_terminator, m_terminator.size(), messageEnd);
-		m_counter = 0;
-	}
-	FILTER_END_NO_MESSAGE_END
-}
-
-NAMESPACE_END
-
-#endif