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, 106 deletions

diff --git a/cryptopp562/gcm.h b/cryptopp562/gcm.h
deleted file mode 100644
index 0b32524..0000000
--- a/cryptopp562/gcm.h
+++ /dev/null
@@ -1,106 +0,0 @@
-#ifndef CRYPTOPP_GCM_H

-#define CRYPTOPP_GCM_H

-

-#include "authenc.h"

-#include "modes.h"

-

-NAMESPACE_BEGIN(CryptoPP)

-

-//! .

-enum GCM_TablesOption {GCM_2K_Tables, GCM_64K_Tables};

-

-//! .

-class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE GCM_Base : public AuthenticatedSymmetricCipherBase

-{

-public:

-	// AuthenticatedSymmetricCipher

-	std::string AlgorithmName() const

-		{return GetBlockCipher().AlgorithmName() + std::string("/GCM");}

-	size_t MinKeyLength() const

-		{return GetBlockCipher().MinKeyLength();}

-	size_t MaxKeyLength() const

-		{return GetBlockCipher().MaxKeyLength();}

-	size_t DefaultKeyLength() const

-		{return GetBlockCipher().DefaultKeyLength();}

-	size_t GetValidKeyLength(size_t n) const

-		{return GetBlockCipher().GetValidKeyLength(n);}

-	bool IsValidKeyLength(size_t n) const

-		{return GetBlockCipher().IsValidKeyLength(n);}

-	unsigned int OptimalDataAlignment() const;

-	IV_Requirement IVRequirement() const

-		{return UNIQUE_IV;}

-	unsigned int IVSize() const

-		{return 12;}

-	unsigned int MinIVLength() const

-		{return 1;}

-	unsigned int MaxIVLength() const

-		{return UINT_MAX;}		// (W64LIT(1)<<61)-1 in the standard

-	unsigned int DigestSize() const

-		{return 16;}

-	lword MaxHeaderLength() const

-		{return (W64LIT(1)<<61)-1;}

-	lword MaxMessageLength() const

-		{return ((W64LIT(1)<<39)-256)/8;}

-

-protected:

-	// AuthenticatedSymmetricCipherBase

-	bool AuthenticationIsOnPlaintext() const

-		{return false;}

-	unsigned int AuthenticationBlockSize() const

-		{return HASH_BLOCKSIZE;}

-	void SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs &params);

-	void Resync(const byte *iv, size_t len);

-	size_t AuthenticateBlocks(const byte *data, size_t len);

-	void AuthenticateLastHeaderBlock();

-	void AuthenticateLastConfidentialBlock();

-	void AuthenticateLastFooterBlock(byte *mac, size_t macSize);

-	SymmetricCipher & AccessSymmetricCipher() {return m_ctr;}

-

-	virtual BlockCipher & AccessBlockCipher() =0;

-	virtual GCM_TablesOption GetTablesOption() const =0;

-

-	const BlockCipher & GetBlockCipher() const {return const_cast<GCM_Base *>(this)->AccessBlockCipher();};

-	byte *HashBuffer() {return m_buffer+REQUIRED_BLOCKSIZE;}

-	byte *HashKey() {return m_buffer+2*REQUIRED_BLOCKSIZE;}

-	byte *MulTable() {return m_buffer+3*REQUIRED_BLOCKSIZE;}

-	inline void ReverseHashBufferIfNeeded();

-

-	class CRYPTOPP_DLL GCTR : public CTR_Mode_ExternalCipher::Encryption

-	{

-	protected:

-		void IncrementCounterBy256();

-	};

-

-	GCTR m_ctr;

-	static word16 s_reductionTable[256];

-	static volatile bool s_reductionTableInitialized;

-	enum {REQUIRED_BLOCKSIZE = 16, HASH_BLOCKSIZE = 16};

-};

-

-//! .

-template <class T_BlockCipher, GCM_TablesOption T_TablesOption, bool T_IsEncryption>

-class GCM_Final : public GCM_Base

-{

-public:

-	static std::string StaticAlgorithmName()

-		{return T_BlockCipher::StaticAlgorithmName() + std::string("/GCM");}

-	bool IsForwardTransformation() const

-		{return T_IsEncryption;}

-

-private:

-	GCM_TablesOption GetTablesOption() const {return T_TablesOption;}

-	BlockCipher & AccessBlockCipher() {return m_cipher;}

-	typename T_BlockCipher::Encryption m_cipher;

-};

-

-//! <a href="http://www.cryptolounge.org/wiki/GCM">GCM</a>

-template <class T_BlockCipher, GCM_TablesOption T_TablesOption=GCM_2K_Tables>

-struct GCM : public AuthenticatedSymmetricCipherDocumentation

-{

-	typedef GCM_Final<T_BlockCipher, T_TablesOption, true> Encryption;

-	typedef GCM_Final<T_BlockCipher, T_TablesOption, false> Decryption;

-};

-

-NAMESPACE_END

-

-#endif