Remove Crypto++ library

The tracked version of Crypto++ is going on 10 years old and doesn't
always compile properly on modern tooling.

This removes the entire subdirectory as well as references to files in
the build script.  Due to the number of files touched by this commit, I
opt to add its replacement in the next commit.

Signed-off-by: Malfurious <m@lfurio.us>

1 files changed, 0 insertions, 168 deletions

diff --git a/cryptopp562/twofish.cpp b/cryptopp562/twofish.cpp
deleted file mode 100644
index 064f16c..0000000
--- a/cryptopp562/twofish.cpp
+++ /dev/null
@@ -1,168 +0,0 @@
-// twofish.cpp - modified by Wei Dai from Matthew Skala's twofish.c
-// The original code and all modifications are in the public domain.
-
-#include "pch.h"
-#include "twofish.h"
-#include "misc.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-// compute (c * x^4) mod (x^4 + (a + 1/a) * x^3 + a * x^2 + (a + 1/a) * x + 1)
-// over GF(256)
-static inline unsigned int Mod(unsigned int c)
-{
-	static const unsigned int modulus = 0x14d;
-	unsigned int c2 = (c<<1) ^ ((c & 0x80) ? modulus : 0);
-	unsigned int c1 = c2 ^ (c>>1) ^ ((c & 1) ? (modulus>>1) : 0);
-	return c | (c1 << 8) | (c2 << 16) | (c1 << 24);
-}
-
-// compute RS(12,8) code with the above polynomial as generator
-// this is equivalent to multiplying by the RS matrix
-static word32 ReedSolomon(word32 high, word32 low)
-{
-	for (unsigned int i=0; i<8; i++)
-	{
-		high = Mod(high>>24) ^ (high<<8) ^ (low>>24);
-		low <<= 8;
-	}
-	return high;
-}
-
-inline word32 Twofish::Base::h0(word32 x, const word32 *key, unsigned int kLen)
-{
-	x = x | (x<<8) | (x<<16) | (x<<24);
-	switch(kLen)
-	{
-#define Q(a, b, c, d, t) q[a][GETBYTE(t,0)] ^ (q[b][GETBYTE(t,1)] << 8) ^ (q[c][GETBYTE(t,2)] << 16) ^ (q[d][GETBYTE(t,3)] << 24)
-	case 4: x = Q(1, 0, 0, 1, x) ^ key[6];
-	case 3: x = Q(1, 1, 0, 0, x) ^ key[4];
-	case 2: x = Q(0, 1, 0, 1, x) ^ key[2];
-			x = Q(0, 0, 1, 1, x) ^ key[0];
-	}
-	return x;
-}
-
-inline word32 Twofish::Base::h(word32 x, const word32 *key, unsigned int kLen)
-{
-	x = h0(x, key, kLen);
-	return mds[0][GETBYTE(x,0)] ^ mds[1][GETBYTE(x,1)] ^ mds[2][GETBYTE(x,2)] ^ mds[3][GETBYTE(x,3)];
-}
-
-void Twofish::Base::UncheckedSetKey(const byte *userKey, unsigned int keylength, const NameValuePairs &)
-{
-	AssertValidKeyLength(keylength);
-
-	unsigned int len = (keylength <= 16 ? 2 : (keylength <= 24 ? 3 : 4));
-	SecBlock<word32> key(len*2);
-	GetUserKey(LITTLE_ENDIAN_ORDER, key.begin(), len*2, userKey, keylength);
-
-	unsigned int i;
-	for (i=0; i<40; i+=2)
-	{
-		word32 a = h(i, key, len);
-		word32 b = rotlFixed(h(i+1, key+1, len), 8);
-		m_k[i] = a+b;
-		m_k[i+1] = rotlFixed(a+2*b, 9);
-	}
-
-	SecBlock<word32> svec(2*len);
-	for (i=0; i<len; i++)
-		svec[2*(len-i-1)] = ReedSolomon(key[2*i+1], key[2*i]);
-	for (i=0; i<256; i++)
-	{
-		word32 t = h0(i, svec, len);
-		m_s[0*256+i] = mds[0][GETBYTE(t, 0)];
-		m_s[1*256+i] = mds[1][GETBYTE(t, 1)];
-		m_s[2*256+i] = mds[2][GETBYTE(t, 2)];
-		m_s[3*256+i] = mds[3][GETBYTE(t, 3)];
-	}
-}
-
-#define G1(x) (m_s[0*256+GETBYTE(x,0)] ^ m_s[1*256+GETBYTE(x,1)] ^ m_s[2*256+GETBYTE(x,2)] ^ m_s[3*256+GETBYTE(x,3)])
-#define G2(x) (m_s[0*256+GETBYTE(x,3)] ^ m_s[1*256+GETBYTE(x,0)] ^ m_s[2*256+GETBYTE(x,1)] ^ m_s[3*256+GETBYTE(x,2)])
-
-#define ENCROUND(n, a, b, c, d) \
-	x = G1 (a); y = G2 (b); \
-	x += y; y += x + k[2 * (n) + 1]; \
-	(c) ^= x + k[2 * (n)]; \
-	(c) = rotrFixed(c, 1); \
-	(d) = rotlFixed(d, 1) ^ y
-
-#define ENCCYCLE(n) \
-	ENCROUND (2 * (n), a, b, c, d); \
-	ENCROUND (2 * (n) + 1, c, d, a, b)
-
-#define DECROUND(n, a, b, c, d) \
-	x = G1 (a); y = G2 (b); \
-	x += y; y += x; \
-	(d) ^= y + k[2 * (n) + 1]; \
-	(d) = rotrFixed(d, 1); \
-	(c) = rotlFixed(c, 1); \
-	(c) ^= (x + k[2 * (n)])
-
-#define DECCYCLE(n) \
-	DECROUND (2 * (n) + 1, c, d, a, b); \
-	DECROUND (2 * (n), a, b, c, d)
-
-typedef BlockGetAndPut<word32, LittleEndian> Block;
-
-void Twofish::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-{
-	word32 x, y, a, b, c, d;
-
-	Block::Get(inBlock)(a)(b)(c)(d);
-
-	a ^= m_k[0];
-	b ^= m_k[1];
-	c ^= m_k[2];
-	d ^= m_k[3];
-
-	const word32 *k = m_k+8;
-	ENCCYCLE (0);
-	ENCCYCLE (1);
-	ENCCYCLE (2);
-	ENCCYCLE (3);
-	ENCCYCLE (4);
-	ENCCYCLE (5);
-	ENCCYCLE (6);
-	ENCCYCLE (7);
-
-	c ^= m_k[4];
-	d ^= m_k[5];
-	a ^= m_k[6];
-	b ^= m_k[7]; 
-
-	Block::Put(xorBlock, outBlock)(c)(d)(a)(b);
-}
-
-void Twofish::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-{
-	word32 x, y, a, b, c, d;
-
-	Block::Get(inBlock)(c)(d)(a)(b);
-
-	c ^= m_k[4];
-	d ^= m_k[5];
-	a ^= m_k[6];
-	b ^= m_k[7];
-
-	const word32 *k = m_k+8;
-	DECCYCLE (7);
-	DECCYCLE (6);
-	DECCYCLE (5);
-	DECCYCLE (4);
-	DECCYCLE (3);
-	DECCYCLE (2);
-	DECCYCLE (1);
-	DECCYCLE (0);
-
-	a ^= m_k[0];
-	b ^= m_k[1];
-	c ^= m_k[2];
-	d ^= m_k[3];
-
-	Block::Put(xorBlock, outBlock)(a)(b)(c)(d);
-}
-
-NAMESPACE_END