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, 77 deletions

diff --git a/cryptopp562/rng.h b/cryptopp562/rng.h
deleted file mode 100644
index 2439dee..0000000
--- a/cryptopp562/rng.h
+++ /dev/null
@@ -1,77 +0,0 @@
-// rng.h - misc RNG related classes, see also osrng.h, randpool.h
-
-#ifndef CRYPTOPP_RNG_H
-#define CRYPTOPP_RNG_H
-
-#include "cryptlib.h"
-#include "filters.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-//! linear congruential generator
-/*! originally by William S. England, do not use for cryptographic purposes */
-class LC_RNG : public RandomNumberGenerator
-{
-public:
-	LC_RNG(word32 init_seed)
-		: seed(init_seed) {}
-
-	void GenerateBlock(byte *output, size_t size);
-
-	word32 GetSeed() {return seed;}
-
-private:
-	word32 seed;
-
-	static const word32 m;
-	static const word32 q;
-	static const word16 a;
-	static const word16 r;
-};
-
-//! RNG derived from ANSI X9.17 Appendix C
-
-class CRYPTOPP_DLL X917RNG : public RandomNumberGenerator, public NotCopyable
-{
-public:
-	// cipher will be deleted by destructor, deterministicTimeVector = 0 means obtain time vector from system
-	X917RNG(BlockTransformation *cipher, const byte *seed, const byte *deterministicTimeVector = 0);
-
-	void GenerateIntoBufferedTransformation(BufferedTransformation &target, const std::string &channel, lword size);
-
-private:
-	member_ptr<BlockTransformation> cipher;
-	unsigned int S;			// blocksize of cipher
-	SecByteBlock dtbuf; 	// buffer for enciphered timestamp
-	SecByteBlock randseed, m_lastBlock, m_deterministicTimeVector;
-};
-
-/** This class implements Maurer's Universal Statistical Test for Random Bit Generators
-    it is intended for measuring the randomness of *PHYSICAL* RNGs.
-    For more details see his paper in Journal of Cryptology, 1992. */
-
-class MaurerRandomnessTest : public Bufferless<Sink>
-{
-public:
-	MaurerRandomnessTest();
-
-	size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking);
-
-	// BytesNeeded() returns how many more bytes of input is needed by the test
-	// GetTestValue() should not be called before BytesNeeded()==0
-	unsigned int BytesNeeded() const {return n >= (Q+K) ? 0 : Q+K-n;}
-
-	// returns a number between 0.0 and 1.0, describing the quality of the
-	// random numbers entered
-	double GetTestValue() const;
-
-private:
-	enum {L=8, V=256, Q=2000, K=2000};
-	double sum;
-	unsigned int n;
-	unsigned int tab[V];
-};
-
-NAMESPACE_END
-
-#endif