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, 59 deletions

diff --git a/cryptopp562/twofish.h b/cryptopp562/twofish.h
deleted file mode 100644
index 9ba2903..0000000
--- a/cryptopp562/twofish.h
+++ /dev/null
@@ -1,59 +0,0 @@
-#ifndef CRYPTOPP_TWOFISH_H
-#define CRYPTOPP_TWOFISH_H
-
-/** \file
-*/
-
-#include "seckey.h"
-#include "secblock.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-//! _
-struct Twofish_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 0, 32>, FixedRounds<16>
-{
-	static const char *StaticAlgorithmName() {return "Twofish";}
-};
-
-/// <a href="http://www.weidai.com/scan-mirror/cs.html#Twofish">Twofish</a>
-class Twofish : public Twofish_Info, public BlockCipherDocumentation
-{
-	class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Twofish_Info>
-	{
-	public:
-		void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
-
-	protected:
-		static word32 h0(word32 x, const word32 *key, unsigned int kLen);
-		static word32 h(word32 x, const word32 *key, unsigned int kLen);
-
-		static const byte q[2][256];
-		static const word32 mds[4][256];
-
-		FixedSizeSecBlock<word32, 40> m_k;
-		FixedSizeSecBlock<word32, 4*256> m_s;
-	};
-
-	class CRYPTOPP_NO_VTABLE Enc : public Base
-	{
-	public:
-		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
-	};
-
-	class CRYPTOPP_NO_VTABLE Dec : public Base
-	{
-	public:
-		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
-	};
-
-public:
-	typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
-	typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
-};
-
-typedef Twofish::Encryption TwofishEncryption;
-typedef Twofish::Decryption TwofishDecryption;
-
-NAMESPACE_END
-
-#endif