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, 71 deletions

diff --git a/cryptopp562/arc4.h b/cryptopp562/arc4.h
deleted file mode 100644
index 9dcc92e..0000000
--- a/cryptopp562/arc4.h
+++ /dev/null
@@ -1,71 +0,0 @@
-#ifndef CRYPTOPP_ARC4_H
-#define CRYPTOPP_ARC4_H
-
-#include "strciphr.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-namespace Weak1 {
-
-//! _
-class CRYPTOPP_NO_VTABLE ARC4_Base : public VariableKeyLength<16, 1, 256>, public RandomNumberGenerator, public SymmetricCipher, public SymmetricCipherDocumentation
-{
-public:
-	~ARC4_Base();
-
-	static const char *StaticAlgorithmName() {return "ARC4";}
-
-	void GenerateBlock(byte *output, size_t size);
-	void DiscardBytes(size_t n);
-
-    void ProcessData(byte *outString, const byte *inString, size_t length);
-	
-	bool IsRandomAccess() const {return false;}
-	bool IsSelfInverting() const {return true;}
-	bool IsForwardTransformation() const {return true;}
-
-	typedef SymmetricCipherFinal<ARC4_Base> Encryption;
-	typedef SymmetricCipherFinal<ARC4_Base> Decryption;
-
-protected:
-	void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params);
-	virtual unsigned int GetDefaultDiscardBytes() const {return 0;}
-
-    FixedSizeSecBlock<byte, 256> m_state;
-    byte m_x, m_y;
-};
-
-//! <a href="http://www.weidai.com/scan-mirror/cs.html#RC4">Alleged RC4</a>
-DOCUMENTED_TYPEDEF(SymmetricCipherFinal<ARC4_Base>, ARC4)
-
-//! _
-class CRYPTOPP_NO_VTABLE MARC4_Base : public ARC4_Base
-{
-public:
-	static const char *StaticAlgorithmName() {return "MARC4";}
-
-	typedef SymmetricCipherFinal<MARC4_Base> Encryption;
-	typedef SymmetricCipherFinal<MARC4_Base> Decryption;
-
-protected:
-	unsigned int GetDefaultDiscardBytes() const {return 256;}
-};
-
-//! Modified ARC4: it discards the first 256 bytes of keystream which may be weaker than the rest
-DOCUMENTED_TYPEDEF(SymmetricCipherFinal<MARC4_Base>, MARC4)
-
-}
-#if CRYPTOPP_ENABLE_NAMESPACE_WEAK >= 1
-namespace Weak {using namespace Weak1;}		// import Weak1 into CryptoPP::Weak
-#else
-using namespace Weak1;	// import Weak1 into CryptoPP with warning
-#ifdef __GNUC__
-#warning "You may be using a weak algorithm that has been retained for backwards compatibility. Please '#define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1' before including this .h file and prepend the class name with 'Weak::' to remove this warning."
-#else
-#pragma message("You may be using a weak algorithm that has been retained for backwards compatibility. Please '#define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1' before including this .h file and prepend the class name with 'Weak::' to remove this warning.")
-#endif
-#endif
-
-NAMESPACE_END
-
-#endif