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, 139 deletions

diff --git a/cryptopp562/3way.cpp b/cryptopp562/3way.cpp
deleted file mode 100644
index 725b682..0000000
--- a/cryptopp562/3way.cpp
+++ /dev/null
@@ -1,139 +0,0 @@
-// 3way.cpp - modifed by Wei Dai from Joan Daemen's 3way.c
-// The original code and all modifications are in the public domain.
-
-#include "pch.h"
-#include "3way.h"
-#include "misc.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-void ThreeWay_TestInstantiations()
-{
-	ThreeWay::Encryption x1;
-	ThreeWay::Decryption x2;
-}
-
-static const word32 START_E = 0x0b0b; // round constant of first encryption round
-static const word32 START_D = 0xb1b1; // round constant of first decryption round
-static const word32 RC_MODULUS = 0x11011;
-
-static inline word32 reverseBits(word32 a)
-{
-	a = ((a & 0xAAAAAAAA) >> 1) | ((a & 0x55555555) << 1);
-	a = ((a & 0xCCCCCCCC) >> 2) | ((a & 0x33333333) << 2);
-	return ((a & 0xF0F0F0F0) >> 4) | ((a & 0x0F0F0F0F) << 4);
-}
-
-#define mu(a0, a1, a2)				\
-{									\
-	a1 = reverseBits(a1);			\
-	word32 t = reverseBits(a0);		\
-	a0 = reverseBits(a2);			\
-	a2 = t;							\
-}
-
-#define pi_gamma_pi(a0, a1, a2)		\
-{									\
-	word32 b0, b2;					\
-	b2 = rotlFixed(a2, 1U);				\
-	b0 = rotlFixed(a0, 22U);				\
-	a0 = rotlFixed(b0 ^ (a1|(~b2)), 1U);	\
-	a2 = rotlFixed(b2 ^ (b0|(~a1)), 22U);\
-	a1 ^= (b2|(~b0));				\
-}
-
-// thanks to Paulo Barreto for this optimized theta()
-#define theta(a0, a1, a2)									\
-{ 															\
-	word32 b0, b1, c; 										\
-	c = a0 ^ a1 ^ a2; 										\
-	c = rotlFixed(c, 16U) ^ rotlFixed(c, 8U);				\
-	b0 = (a0 << 24) ^ (a2 >> 8) ^ (a1 << 8) ^ (a0 >> 24); 	\
-	b1 = (a1 << 24) ^ (a0 >> 8) ^ (a2 << 8) ^ (a1 >> 24); 	\
-	a0 ^= c ^ b0; 											\
-	a1 ^= c ^ b1; 											\
-	a2 ^= c ^ (b0 >> 16) ^ (b1 << 16); 						\
-}															
-
-#define rho(a0, a1, a2)			\
-{								\
-	theta(a0, a1, a2);			\
-	pi_gamma_pi(a0, a1, a2);	\
-}											
-
-void ThreeWay::Base::UncheckedSetKey(const byte *uk, unsigned int length, const NameValuePairs &params)
-{
-	AssertValidKeyLength(length);
-
-	m_rounds = GetRoundsAndThrowIfInvalid(params, this);
-
-	for (unsigned int i=0; i<3; i++)
-		m_k[i] = (word32)uk[4*i+3] | ((word32)uk[4*i+2]<<8) | ((word32)uk[4*i+1]<<16) | ((word32)uk[4*i]<<24);
-
-	if (!IsForwardTransformation())
-	{
-		theta(m_k[0], m_k[1], m_k[2]);
-		mu(m_k[0], m_k[1], m_k[2]);
-		m_k[0] = ByteReverse(m_k[0]);
-		m_k[1] = ByteReverse(m_k[1]);
-		m_k[2] = ByteReverse(m_k[2]);
-	}
-}
-
-void ThreeWay::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-{
-	typedef BlockGetAndPut<word32, BigEndian> Block;
-
-	word32 a0, a1, a2;
-	Block::Get(inBlock)(a0)(a1)(a2);
-
-	word32 rc = START_E;
-
-	for(unsigned i=0; i<m_rounds; i++)
-	{
-		a0 ^= m_k[0] ^ (rc<<16);
-		a1 ^= m_k[1];
-		a2 ^= m_k[2] ^ rc;
-		rho(a0, a1, a2);
-
-		rc <<= 1;
-		if (rc&0x10000) rc ^= 0x11011;
-	}
-	a0 ^= m_k[0] ^ (rc<<16);
-	a1 ^= m_k[1];
-	a2 ^= m_k[2] ^ rc;
-	theta(a0, a1, a2);
-
-	Block::Put(xorBlock, outBlock)(a0)(a1)(a2);
-}
-
-void ThreeWay::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-{
-	typedef BlockGetAndPut<word32, LittleEndian> Block;
-
-	word32 a0, a1, a2;
-	Block::Get(inBlock)(a0)(a1)(a2);
-
-	word32 rc = START_D;
-
-	mu(a0, a1, a2);
-	for(unsigned i=0; i<m_rounds; i++)
-	{
-		a0 ^= m_k[0] ^ (rc<<16);
-		a1 ^= m_k[1];
-		a2 ^= m_k[2] ^ rc;
-		rho(a0, a1, a2);
-
-		rc <<= 1;
-		if (rc&0x10000) rc ^= 0x11011;
-	}
-	a0 ^= m_k[0] ^ (rc<<16);
-	a1 ^= m_k[1];
-	a2 ^= m_k[2] ^ rc;
-	theta(a0, a1, a2);
-	mu(a0, a1, a2);
-
-	Block::Put(xorBlock, outBlock)(a0)(a1)(a2);
-}
-
-NAMESPACE_END