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, 141 deletions

diff --git a/cryptopp562/lubyrack.h b/cryptopp562/lubyrack.h
deleted file mode 100644
index e8fd2f7..0000000
--- a/cryptopp562/lubyrack.h
+++ /dev/null
@@ -1,141 +0,0 @@
-// lubyrack.h - written and placed in the public domain by Wei Dai
-
-#ifndef CRYPTOPP_LUBYRACK_H
-#define CRYPTOPP_LUBYRACK_H
-
-/** \file */
-
-#include "simple.h"
-#include "secblock.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-template <class T> struct DigestSizeDoubleWorkaround 	// VC60 workaround
-{
-	CRYPTOPP_CONSTANT(RESULT = 2*T::DIGESTSIZE)
-};
-
-//! algorithm info
-template <class T>
-struct LR_Info : public VariableKeyLength<16, 0, 2*(INT_MAX/2), 2>, public FixedBlockSize<DigestSizeDoubleWorkaround<T>::RESULT>
-{
-	static std::string StaticAlgorithmName() {return std::string("LR/")+T::StaticAlgorithmName();}
-};
-
-//! Luby-Rackoff
-template <class T>
-class LR : public LR_Info<T>, public BlockCipherDocumentation
-{
-	class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<LR_Info<T> >
-	{
-	public:
-		// VC60 workaround: have to define these functions within class definition
-		void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params)
-		{
-			this->AssertValidKeyLength(length);
-
-			L = length/2;
-			buffer.New(2*S);
-			digest.New(S);
-			key.Assign(userKey, 2*L);
-		}
-
-	protected:
-		CRYPTOPP_CONSTANT(S=T::DIGESTSIZE)
-		unsigned int L;	// key length / 2
-		SecByteBlock key;
-
-		mutable T hm;
-		mutable SecByteBlock buffer, digest;
-	};
-
-	class CRYPTOPP_NO_VTABLE Enc : public Base
-	{
-	public:
-
-#define KL this->key
-#define KR this->key+this->L
-#define BL this->buffer
-#define BR this->buffer+this->S
-#define IL inBlock
-#define IR inBlock+this->S
-#define OL outBlock
-#define OR outBlock+this->S
-
-		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-		{
-			this->hm.Update(KL, this->L);
-			this->hm.Update(IL, this->S);
-			this->hm.Final(BR);
-			xorbuf(BR, IR, this->S);
-
-			this->hm.Update(KR, this->L);
-			this->hm.Update(BR, this->S);
-			this->hm.Final(BL);
-			xorbuf(BL, IL, this->S);
-
-			this->hm.Update(KL, this->L);
-			this->hm.Update(BL, this->S);
-			this->hm.Final(this->digest);
-			xorbuf(BR, this->digest, this->S);
-
-			this->hm.Update(KR, this->L);
-			this->hm.Update(OR, this->S);
-			this->hm.Final(this->digest);
-			xorbuf(BL, this->digest, this->S);
-
-			if (xorBlock)
-				xorbuf(outBlock, xorBlock, this->buffer, 2*this->S);
-			else
-				memcpy_s(outBlock, 2*this->S, this->buffer, 2*this->S);
-		}
-	};
-
-	class CRYPTOPP_NO_VTABLE Dec : public Base
-	{
-	public:
-		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-		{
-			this->hm.Update(KR, this->L);
-			this->hm.Update(IR, this->S);
-			this->hm.Final(BL);
-			xorbuf(BL, IL, this->S);
-
-			this->hm.Update(KL, this->L);
-			this->hm.Update(BL, this->S);
-			this->hm.Final(BR);
-			xorbuf(BR, IR, this->S);
-
-			this->hm.Update(KR, this->L);
-			this->hm.Update(BR, this->S);
-			this->hm.Final(this->digest);
-			xorbuf(BL, this->digest, this->S);
-
-			this->hm.Update(KL, this->L);
-			this->hm.Update(OL, this->S);
-			this->hm.Final(this->digest);
-			xorbuf(BR, this->digest, this->S);
-
-			if (xorBlock)
-				xorbuf(outBlock, xorBlock, this->buffer, 2*this->S);
-			else
-				memcpy(outBlock, this->buffer, 2*this->S);
-		}
-#undef KL
-#undef KR
-#undef BL
-#undef BR
-#undef IL
-#undef IR
-#undef OL
-#undef OR
-	};
-
-public:
-	typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
-	typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
-};
-
-NAMESPACE_END
-
-#endif