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-rw-r--r--CryptoPP/gost.cpp123
1 files changed, 0 insertions, 123 deletions
diff --git a/CryptoPP/gost.cpp b/CryptoPP/gost.cpp
deleted file mode 100644
index bbd829752..000000000
--- a/CryptoPP/gost.cpp
+++ /dev/null
@@ -1,123 +0,0 @@
-#include "pch.h"
-#include "gost.h"
-#include "misc.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-// these are the S-boxes given in Applied Cryptography 2nd Ed., p. 333
-const byte GOST::Base::sBox[8][16]={
- {4, 10, 9, 2, 13, 8, 0, 14, 6, 11, 1, 12, 7, 15, 5, 3},
- {14, 11, 4, 12, 6, 13, 15, 10, 2, 3, 8, 1, 0, 7, 5, 9},
- {5, 8, 1, 13, 10, 3, 4, 2, 14, 15, 12, 7, 6, 0, 9, 11},
- {7, 13, 10, 1, 0, 8, 9, 15, 14, 4, 6, 12, 11, 2, 5, 3},
- {6, 12, 7, 1, 5, 15, 13, 8, 4, 10, 9, 14, 0, 3, 11, 2},
- {4, 11, 10, 0, 7, 2, 1, 13, 3, 6, 8, 5, 9, 12, 15, 14},
- {13, 11, 4, 1, 3, 15, 5, 9, 0, 10, 14, 7, 6, 8, 2, 12},
- {1, 15, 13, 0, 5, 7, 10, 4, 9, 2, 3, 14, 6, 11, 8, 12}};
-
-/* // these are the S-boxes given in the GOST source code listing in Applied
- // Cryptography 2nd Ed., p. 644. they appear to be from the DES S-boxes
- {13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7 },
- { 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1 },
- {12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11 },
- { 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9 },
- { 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15 },
- {10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8 },
- {15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10 },
- {14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7 }};
-*/
-
-volatile bool GOST::Base::sTableCalculated = false;
-word32 GOST::Base::sTable[4][256];
-
-void GOST::Base::UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &)
-{
- AssertValidKeyLength(length);
-
- PrecalculateSTable();
-
- GetUserKey(LITTLE_ENDIAN_ORDER, key.begin(), 8, userKey, KEYLENGTH);
-}
-
-void GOST::Base::PrecalculateSTable()
-{
- if (!sTableCalculated)
- {
- for (unsigned i = 0; i < 4; i++)
- for (unsigned j = 0; j < 256; j++)
- {
- word32 temp = sBox[2*i][j%16] | (sBox[2*i+1][j/16] << 4);
- sTable[i][j] = rotlMod(temp, 11+8*i);
- }
-
- sTableCalculated=true;
- }
-}
-
-#define f(x) ( t=x, \
- sTable[3][GETBYTE(t, 3)] ^ sTable[2][GETBYTE(t, 2)] \
- ^ sTable[1][GETBYTE(t, 1)] ^ sTable[0][GETBYTE(t, 0)] )
-
-typedef BlockGetAndPut<word32, LittleEndian> Block;
-
-void GOST::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-{
- word32 n1, n2, t;
-
- Block::Get(inBlock)(n1)(n2);
-
- for (unsigned int i=0; i<3; i++)
- {
- n2 ^= f(n1+key[0]);
- n1 ^= f(n2+key[1]);
- n2 ^= f(n1+key[2]);
- n1 ^= f(n2+key[3]);
- n2 ^= f(n1+key[4]);
- n1 ^= f(n2+key[5]);
- n2 ^= f(n1+key[6]);
- n1 ^= f(n2+key[7]);
- }
-
- n2 ^= f(n1+key[7]);
- n1 ^= f(n2+key[6]);
- n2 ^= f(n1+key[5]);
- n1 ^= f(n2+key[4]);
- n2 ^= f(n1+key[3]);
- n1 ^= f(n2+key[2]);
- n2 ^= f(n1+key[1]);
- n1 ^= f(n2+key[0]);
-
- Block::Put(xorBlock, outBlock)(n2)(n1);
-}
-
-void GOST::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-{
- word32 n1, n2, t;
-
- Block::Get(inBlock)(n1)(n2);
-
- n2 ^= f(n1+key[0]);
- n1 ^= f(n2+key[1]);
- n2 ^= f(n1+key[2]);
- n1 ^= f(n2+key[3]);
- n2 ^= f(n1+key[4]);
- n1 ^= f(n2+key[5]);
- n2 ^= f(n1+key[6]);
- n1 ^= f(n2+key[7]);
-
- for (unsigned int i=0; i<3; i++)
- {
- n2 ^= f(n1+key[7]);
- n1 ^= f(n2+key[6]);
- n2 ^= f(n1+key[5]);
- n1 ^= f(n2+key[4]);
- n2 ^= f(n1+key[3]);
- n1 ^= f(n2+key[2]);
- n2 ^= f(n1+key[1]);
- n1 ^= f(n2+key[0]);
- }
-
- Block::Put(xorBlock, outBlock)(n2)(n1);
-}
-
-NAMESPACE_END