From 5494fc310acf0aabb9d828451331e44483eb21c7 Mon Sep 17 00:00:00 2001 From: Malfurious Date: Mon, 21 Oct 2024 11:09:00 -0400 Subject: 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 --- cryptopp562/gost.cpp | 123 --------------------------------------------------- 1 file changed, 123 deletions(-) delete mode 100644 cryptopp562/gost.cpp (limited to 'cryptopp562/gost.cpp') diff --git a/cryptopp562/gost.cpp b/cryptopp562/gost.cpp deleted file mode 100644 index bbd8297..0000000 --- a/cryptopp562/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 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 -- cgit v1.2.3