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author | Malfurious <m@lfurio.us> | 2024-10-21 11:09:00 -0400 |
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committer | Malfurious <m@lfurio.us> | 2024-10-24 06:41:41 -0400 |
commit | 5494fc310acf0aabb9d828451331e44483eb21c7 (patch) | |
tree | 77280a586d52470fca89b9ed73f5f1faaf7907c6 /cryptopp562/square.cpp | |
parent | 428471d39fb8c205a9fad899c88c30a2cb7df685 (diff) | |
download | compass-5494fc310acf0aabb9d828451331e44483eb21c7.tar.gz compass-5494fc310acf0aabb9d828451331e44483eb21c7.zip |
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>
Diffstat (limited to 'cryptopp562/square.cpp')
-rw-r--r-- | cryptopp562/square.cpp | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/cryptopp562/square.cpp b/cryptopp562/square.cpp deleted file mode 100644 index 00e6bdd..0000000 --- a/cryptopp562/square.cpp +++ /dev/null @@ -1,177 +0,0 @@ -// square.cpp - written and placed in the public domain by Wei Dai -// Based on Paulo S.L.M. Barreto's public domain implementation - -#include "pch.h" -#include "square.h" -#include "misc.h" -#include "gf256.h" - -NAMESPACE_BEGIN(CryptoPP) - -// apply theta to a roundkey -static void SquareTransform (word32 in[4], word32 out[4]) -{ - static const byte G[4][4] = - { - 0x02U, 0x01U, 0x01U, 0x03U, - 0x03U, 0x02U, 0x01U, 0x01U, - 0x01U, 0x03U, 0x02U, 0x01U, - 0x01U, 0x01U, 0x03U, 0x02U - }; - - GF256 gf256(0xf5); - - for (int i = 0; i < 4; i++) - { - word32 temp = 0; - for (int j = 0; j < 4; j++) - for (int k = 0; k < 4; k++) - temp ^= (word32)gf256.Multiply(GETBYTE(in[i], 3-k), G[k][j]) << ((3-j)*8); - out[i] = temp; - } -} - -#define roundkeys(i, j) m_roundkeys[(i)*4+(j)] -#define roundkeys4(i) (m_roundkeys+(i)*4) - -void Square::Base::UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &) -{ - AssertValidKeyLength(length); - - static const word32 offset[ROUNDS] = { - 0x01000000UL, 0x02000000UL, 0x04000000UL, 0x08000000UL, - 0x10000000UL, 0x20000000UL, 0x40000000UL, 0x80000000UL, - }; - - GetUserKey(BIG_ENDIAN_ORDER, m_roundkeys.data(), KEYLENGTH/4, userKey, KEYLENGTH); - - /* apply the key evolution function */ - for (int i = 1; i < ROUNDS+1; i++) - { - roundkeys(i, 0) = roundkeys(i-1, 0) ^ rotlFixed(roundkeys(i-1, 3), 8U) ^ offset[i-1]; - roundkeys(i, 1) = roundkeys(i-1, 1) ^ roundkeys(i, 0); - roundkeys(i, 2) = roundkeys(i-1, 2) ^ roundkeys(i, 1); - roundkeys(i, 3) = roundkeys(i-1, 3) ^ roundkeys(i, 2); - } - - /* produce the round keys */ - if (IsForwardTransformation()) - { - for (int i = 0; i < ROUNDS; i++) - SquareTransform (roundkeys4(i), roundkeys4(i)); - } - else - { - for (int i = 0; i < ROUNDS/2; i++) - for (int j = 0; j < 4; j++) - std::swap(roundkeys(i, j), roundkeys(ROUNDS-i, j)); - SquareTransform (roundkeys4(ROUNDS), roundkeys4(ROUNDS)); - } -} - -#define MSB(x) (((x) >> 24) & 0xffU) /* most significant byte */ -#define SSB(x) (((x) >> 16) & 0xffU) /* second in significance */ -#define TSB(x) (((x) >> 8) & 0xffU) /* third in significance */ -#define LSB(x) (((x) ) & 0xffU) /* least significant byte */ - -#define squareRound(text, temp, T0, T1, T2, T3, roundkey) \ -{ \ - temp[0] = T0[MSB (text[0])] \ - ^ T1[MSB (text[1])] \ - ^ T2[MSB (text[2])] \ - ^ T3[MSB (text[3])] \ - ^ roundkey[0]; \ - temp[1] = T0[SSB (text[0])] \ - ^ T1[SSB (text[1])] \ - ^ T2[SSB (text[2])] \ - ^ T3[SSB (text[3])] \ - ^ roundkey[1]; \ - temp[2] = T0[TSB (text[0])] \ - ^ T1[TSB (text[1])] \ - ^ T2[TSB (text[2])] \ - ^ T3[TSB (text[3])] \ - ^ roundkey[2]; \ - temp[3] = T0[LSB (text[0])] \ - ^ T1[LSB (text[1])] \ - ^ T2[LSB (text[2])] \ - ^ T3[LSB (text[3])] \ - ^ roundkey[3]; \ -} /* squareRound */ - -#define squareFinal(text, temp, S, roundkey) \ -{ \ - text[0] = ((word32) (S[MSB (temp[0])]) << 24) \ - ^ ((word32) (S[MSB (temp[1])]) << 16) \ - ^ ((word32) (S[MSB (temp[2])]) << 8) \ - ^ (word32) (S[MSB (temp[3])]) \ - ^ roundkey[0]; \ - text[1] = ((word32) (S[SSB (temp[0])]) << 24) \ - ^ ((word32) (S[SSB (temp[1])]) << 16) \ - ^ ((word32) (S[SSB (temp[2])]) << 8) \ - ^ (word32) (S[SSB (temp[3])]) \ - ^ roundkey[1]; \ - text[2] = ((word32) (S[TSB (temp[0])]) << 24) \ - ^ ((word32) (S[TSB (temp[1])]) << 16) \ - ^ ((word32) (S[TSB (temp[2])]) << 8) \ - ^ (word32) (S[TSB (temp[3])]) \ - ^ roundkey[2]; \ - text[3] = ((word32) (S[LSB (temp[0])]) << 24) \ - ^ ((word32) (S[LSB (temp[1])]) << 16) \ - ^ ((word32) (S[LSB (temp[2])]) << 8) \ - ^ (word32) (S[LSB (temp[3])]) \ - ^ roundkey[3]; \ -} /* squareFinal */ - -typedef BlockGetAndPut<word32, BigEndian> Block; - -void Square::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const -{ - word32 text[4], temp[4]; - Block::Get(inBlock)(text[0])(text[1])(text[2])(text[3]); - - /* initial key addition */ - text[0] ^= roundkeys(0, 0); - text[1] ^= roundkeys(0, 1); - text[2] ^= roundkeys(0, 2); - text[3] ^= roundkeys(0, 3); - - /* ROUNDS - 1 full rounds */ - for (int i=1; i+1<ROUNDS; i+=2) - { - squareRound (text, temp, Te[0], Te[1], Te[2], Te[3], roundkeys4(i)); - squareRound (temp, text, Te[0], Te[1], Te[2], Te[3], roundkeys4(i+1)); - } - squareRound (text, temp, Te[0], Te[1], Te[2], Te[3], roundkeys4(ROUNDS-1)); - - /* last round (diffusion becomes only transposition) */ - squareFinal (text, temp, Se, roundkeys4(ROUNDS)); - - Block::Put(xorBlock, outBlock)(text[0])(text[1])(text[2])(text[3]); -} - -void Square::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const -{ - word32 text[4], temp[4]; - Block::Get(inBlock)(text[0])(text[1])(text[2])(text[3]); - - /* initial key addition */ - text[0] ^= roundkeys(0, 0); - text[1] ^= roundkeys(0, 1); - text[2] ^= roundkeys(0, 2); - text[3] ^= roundkeys(0, 3); - - /* ROUNDS - 1 full rounds */ - for (int i=1; i+1<ROUNDS; i+=2) - { - squareRound (text, temp, Td[0], Td[1], Td[2], Td[3], roundkeys4(i)); - squareRound (temp, text, Td[0], Td[1], Td[2], Td[3], roundkeys4(i+1)); - } - squareRound (text, temp, Td[0], Td[1], Td[2], Td[3], roundkeys4(ROUNDS-1)); - - /* last round (diffusion becomes only transposition) */ - squareFinal (text, temp, Sd, roundkeys4(ROUNDS)); - - Block::Put(xorBlock, outBlock)(text[0])(text[1])(text[2])(text[3]); -} - -NAMESPACE_END |