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, 54 deletions

diff --git a/cryptopp562/rc6.h b/cryptopp562/rc6.h
deleted file mode 100644
index df3d1ee..0000000
--- a/cryptopp562/rc6.h
+++ /dev/null
@@ -1,54 +0,0 @@
-#ifndef CRYPTOPP_RC6_H
-#define CRYPTOPP_RC6_H
-
-/** \file
-*/
-
-#include "seckey.h"
-#include "secblock.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-//! _
-struct RC6_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 0, 255>, public VariableRounds<20>
-{
-	static const char *StaticAlgorithmName() {return "RC6";}
-	typedef word32 RC6_WORD;
-};
-
-/// <a href="http://www.weidai.com/scan-mirror/cs.html#RC6">RC6</a>
-class RC6 : public RC6_Info, public BlockCipherDocumentation
-{
-	class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<RC6_Info>
-	{
-	public:
-		void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
-
-	protected:
-		unsigned int r;       // number of rounds
-		SecBlock<RC6_WORD> sTable;  // expanded key table
-	};
-
-	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 RC6::Encryption RC6Encryption;
-typedef RC6::Decryption RC6Decryption;
-
-NAMESPACE_END
-
-#endif