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/mars.cpp | 154 --------------------------------------------------- 1 file changed, 154 deletions(-) delete mode 100644 cryptopp562/mars.cpp (limited to 'cryptopp562/mars.cpp') diff --git a/cryptopp562/mars.cpp b/cryptopp562/mars.cpp deleted file mode 100644 index fe9b118..0000000 --- a/cryptopp562/mars.cpp +++ /dev/null @@ -1,154 +0,0 @@ -// mars.cpp - written and placed in the public domain by Wei Dai - -// includes IBM's key setup "tweak" proposed in August 1999 (http://www.research.ibm.com/security/key-setup.txt) - -#include "pch.h" -#include "mars.h" -#include "misc.h" - -NAMESPACE_BEGIN(CryptoPP) - -void MARS::Base::UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &) -{ - AssertValidKeyLength(length); - - // Initialize T[] with the key data - FixedSizeSecBlock T; - GetUserKey(LITTLE_ENDIAN_ORDER, T.begin(), 15, userKey, length); - T[length/4] = length/4; - - for (unsigned int j=0; j<4; j++) // compute 10 words of K[] in each iteration - { - unsigned int i; - // Do linear transformation - for (i=0; i<15; i++) - T[i] = T[i] ^ rotlFixed(T[(i+8)%15] ^ T[(i+13)%15], 3) ^ (4*i+j); - - // Do four rounds of stirring - for (unsigned int k=0; k<4; k++) - for (i=0; i<15; i++) - T[i] = rotlFixed(T[i] + Sbox[T[(i+14)%15]%512], 9); - - // Store next 10 key words into K[] - for (i=0; i<10; i++) - m_k[10*j+i] = T[4*i%15]; - } - - // Modify multiplication key-words - for(unsigned int i = 5; i < 37; i += 2) - { - word32 m, w = m_k[i] | 3; - m = (~w ^ (w<<1)) & (~w ^ (w>>1)) & 0x7ffffffe; - m &= m>>1; m &= m>>2; m &= m>>4; - m |= m<<1; m |= m<<2; m |= m<<4; - m &= 0x7ffffffc; - w ^= rotlMod(Sbox[265 + (m_k[i] & 3)], m_k[i-1]) & m; - m_k[i] = w; - } -} - -#define S(a) Sbox[(a)&0x1ff] -#define S0(a) Sbox[(a)&0xff] -#define S1(a) Sbox[((a)&0xff) + 256] - -typedef BlockGetAndPut Block; - -void MARS::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const -{ - unsigned int i; - word32 a, b, c, d, l, m, r, t; - const word32 *k = m_k; - - Block::Get(inBlock)(a)(b)(c)(d); - - a += k[0]; b += k[1]; c += k[2]; d += k[3]; - - for (i=0; i<8; i++) - { - b = (b ^ S0(a)) + S1(a>>8); - c += S0(a>>16); - a = rotrFixed(a, 24); - d ^= S1(a); - a += (i%4==0) ? d : 0; - a += (i%4==1) ? b : 0; - t = a; a = b; b = c; c = d; d = t; - } - - for (i=0; i<16; i++) - { - t = rotlFixed(a, 13); - r = rotlFixed(t * k[2*i+5], 10); - m = a + k[2*i+4]; - l = rotlMod((S(m) ^ rotrFixed(r, 5) ^ r), r); - c += rotlMod(m, rotrFixed(r, 5)); - (i<8 ? b : d) += l; - (i<8 ? d : b) ^= r; - a = b; b = c; c = d; d = t; - } - - for (i=0; i<8; i++) - { - a -= (i%4==2) ? d : 0; - a -= (i%4==3) ? b : 0; - b ^= S1(a); - c -= S0(a>>24); - t = rotlFixed(a, 24); - d = (d - S1(a>>16)) ^ S0(t); - a = b; b = c; c = d; d = t; - } - - a -= k[36]; b -= k[37]; c -= k[38]; d -= k[39]; - - Block::Put(xorBlock, outBlock)(a)(b)(c)(d); -} - -void MARS::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const -{ - unsigned int i; - word32 a, b, c, d, l, m, r, t; - const word32 *k = m_k; - - Block::Get(inBlock)(d)(c)(b)(a); - - d += k[36]; c += k[37]; b += k[38]; a += k[39]; - - for (i=0; i<8; i++) - { - b = (b ^ S0(a)) + S1(a>>8); - c += S0(a>>16); - a = rotrFixed(a, 24); - d ^= S1(a); - a += (i%4==0) ? d : 0; - a += (i%4==1) ? b : 0; - t = a; a = b; b = c; c = d; d = t; - } - - for (i=0; i<16; i++) - { - t = rotrFixed(a, 13); - r = rotlFixed(a * k[35-2*i], 10); - m = t + k[34-2*i]; - l = rotlMod((S(m) ^ rotrFixed(r, 5) ^ r), r); - c -= rotlMod(m, rotrFixed(r, 5)); - (i<8 ? b : d) -= l; - (i<8 ? d : b) ^= r; - a = b; b = c; c = d; d = t; - } - - for (i=0; i<8; i++) - { - a -= (i%4==2) ? d : 0; - a -= (i%4==3) ? b : 0; - b ^= S1(a); - c -= S0(a>>24); - t = rotlFixed(a, 24); - d = (d - S1(a>>16)) ^ S0(t); - a = b; b = c; c = d; d = t; - } - - d -= k[0]; c -= k[1]; b -= k[2]; a -= k[3]; - - Block::Put(xorBlock, outBlock)(d)(c)(b)(a); -} - -NAMESPACE_END -- cgit v1.2.3