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, 121 deletions

diff --git a/cryptopp562/zdeflate.h b/cryptopp562/zdeflate.h
deleted file mode 100644
index 8bbd14e..0000000
--- a/cryptopp562/zdeflate.h
+++ /dev/null
@@ -1,121 +0,0 @@
-#ifndef CRYPTOPP_ZDEFLATE_H
-#define CRYPTOPP_ZDEFLATE_H
-
-#include "filters.h"
-#include "misc.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-//! _
-class LowFirstBitWriter : public Filter
-{
-public:
-	LowFirstBitWriter(BufferedTransformation *attachment);
-	void PutBits(unsigned long value, unsigned int length);
-	void FlushBitBuffer();
-	void ClearBitBuffer();
-
-	void StartCounting();
-	unsigned long FinishCounting();
-
-protected:
-	bool m_counting;
-	unsigned long m_bitCount;
-	unsigned long m_buffer;
-	unsigned int m_bitsBuffered, m_bytesBuffered;
-	FixedSizeSecBlock<byte, 256> m_outputBuffer;
-};
-
-//! Huffman Encoder
-class HuffmanEncoder
-{
-public:
-	typedef unsigned int code_t;
-	typedef unsigned int value_t;
-
-	HuffmanEncoder() {}
-	HuffmanEncoder(const unsigned int *codeBits, unsigned int nCodes);
-	void Initialize(const unsigned int *codeBits, unsigned int nCodes);
-
-	static void GenerateCodeLengths(unsigned int *codeBits, unsigned int maxCodeBits, const unsigned int *codeCounts, size_t nCodes);
-
-	void Encode(LowFirstBitWriter &writer, value_t value) const;
-
-	struct Code
-	{
-		unsigned int code;
-		unsigned int len;
-	};
-
-	SecBlock<Code> m_valueToCode;
-};
-
-//! DEFLATE (RFC 1951) compressor
-
-class Deflator : public LowFirstBitWriter
-{
-public:
-	enum {MIN_DEFLATE_LEVEL = 0, DEFAULT_DEFLATE_LEVEL = 6, MAX_DEFLATE_LEVEL = 9};
-	enum {MIN_LOG2_WINDOW_SIZE = 9, DEFAULT_LOG2_WINDOW_SIZE = 15, MAX_LOG2_WINDOW_SIZE = 15};
-	/*! \note detectUncompressible makes it faster to process uncompressible files, but
-		if a file has both compressible and uncompressible parts, it may fail to compress some of the
-		compressible parts. */
-	Deflator(BufferedTransformation *attachment=NULL, int deflateLevel=DEFAULT_DEFLATE_LEVEL, int log2WindowSize=DEFAULT_LOG2_WINDOW_SIZE, bool detectUncompressible=true);
-	//! possible parameter names: Log2WindowSize, DeflateLevel, DetectUncompressible
-	Deflator(const NameValuePairs &parameters, BufferedTransformation *attachment=NULL);
-
-	//! this function can be used to set the deflate level in the middle of compression
-	void SetDeflateLevel(int deflateLevel);
-	int GetDeflateLevel() const {return m_deflateLevel;}
-	int GetLog2WindowSize() const {return m_log2WindowSize;}
-
-	void IsolatedInitialize(const NameValuePairs &parameters);
-	size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking);
-	bool IsolatedFlush(bool hardFlush, bool blocking);
-
-protected:
-	virtual void WritePrestreamHeader() {}
-	virtual void ProcessUncompressedData(const byte *string, size_t length) {}
-	virtual void WritePoststreamTail() {}
-
-	enum {STORED = 0, STATIC = 1, DYNAMIC = 2};
-	enum {MIN_MATCH = 3, MAX_MATCH = 258};
-
-	void InitializeStaticEncoders();
-	void Reset(bool forceReset = false);
-	unsigned int FillWindow(const byte *str, size_t length);
-	unsigned int ComputeHash(const byte *str) const;
-	unsigned int LongestMatch(unsigned int &bestMatch) const;
-	void InsertString(unsigned int start);
-	void ProcessBuffer();
-
-	void LiteralByte(byte b);
-	void MatchFound(unsigned int distance, unsigned int length);
-	void EncodeBlock(bool eof, unsigned int blockType);
-	void EndBlock(bool eof);
-
-	struct EncodedMatch
-	{
-		unsigned literalCode : 9;
-		unsigned literalExtra : 5;
-		unsigned distanceCode : 5;
-		unsigned distanceExtra : 13;
-	};
-
-	int m_deflateLevel, m_log2WindowSize, m_compressibleDeflateLevel;
-	unsigned int m_detectSkip, m_detectCount;
-	unsigned int DSIZE, DMASK, HSIZE, HMASK, GOOD_MATCH, MAX_LAZYLENGTH, MAX_CHAIN_LENGTH;
-	bool m_headerWritten, m_matchAvailable;
-	unsigned int m_dictionaryEnd, m_stringStart, m_lookahead, m_minLookahead, m_previousMatch, m_previousLength;
-	HuffmanEncoder m_staticLiteralEncoder, m_staticDistanceEncoder, m_dynamicLiteralEncoder, m_dynamicDistanceEncoder;
-	SecByteBlock m_byteBuffer;
-	SecBlock<word16> m_head, m_prev;
-	FixedSizeSecBlock<unsigned int, 286> m_literalCounts;
-	FixedSizeSecBlock<unsigned int, 30> m_distanceCounts;
-	SecBlock<EncodedMatch> m_matchBuffer;
-	unsigned int m_matchBufferEnd, m_blockStart, m_blockLength;
-};
-
-NAMESPACE_END
-
-#endif