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-rw-r--r--CryptoPP/3way.cpp139
1 files changed, 0 insertions, 139 deletions
diff --git a/CryptoPP/3way.cpp b/CryptoPP/3way.cpp
deleted file mode 100644
index 725b682ea..000000000
--- a/CryptoPP/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