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/seal.cpp | 213 --------------------------------------------------- 1 file changed, 213 deletions(-) delete mode 100644 cryptopp562/seal.cpp (limited to 'cryptopp562/seal.cpp') diff --git a/cryptopp562/seal.cpp b/cryptopp562/seal.cpp deleted file mode 100644 index f49b522..0000000 --- a/cryptopp562/seal.cpp +++ /dev/null @@ -1,213 +0,0 @@ -// seal.cpp - written and placed in the public domain by Wei Dai -// updated to SEAL 3.0 by Leonard Janke - -#include "pch.h" - -#include "seal.h" -#include "sha.h" -#include "misc.h" - -NAMESPACE_BEGIN(CryptoPP) - -void SEAL_TestInstantiations() -{ - SEAL<>::Encryption x; -} - -struct SEAL_Gamma -{ - SEAL_Gamma(const byte *key) - : H(5), Z(5), D(16), lastIndex(0xffffffff) - { - GetUserKey(BIG_ENDIAN_ORDER, H.begin(), 5, key, 20); - memset(D, 0, 64); - } - - word32 Apply(word32 i); - - SecBlock H, Z, D; - word32 lastIndex; -}; - -word32 SEAL_Gamma::Apply(word32 i) -{ - word32 shaIndex = i/5; - if (shaIndex != lastIndex) - { - memcpy(Z, H, 20); - D[0] = shaIndex; - SHA::Transform(Z, D); - lastIndex = shaIndex; - } - return Z[i%5]; -} - -template -void SEAL_Policy::CipherSetKey(const NameValuePairs ¶ms, const byte *key, size_t length) -{ - m_insideCounter = m_outsideCounter = m_startCount = 0; - - unsigned int L = params.GetIntValueWithDefault("NumberOfOutputBitsPerPositionIndex", 32*1024); - m_iterationsPerCount = L / 8192; - - SEAL_Gamma gamma(key); - unsigned int i; - - for (i=0; i<512; i++) - m_T[i] = gamma.Apply(i); - - for (i=0; i<256; i++) - m_S[i] = gamma.Apply(0x1000+i); - - m_R.New(4*(L/8192)); - - for (i=0; i -void SEAL_Policy::CipherResynchronize(byte *keystreamBuffer, const byte *IV, size_t length) -{ - assert(length==4); - m_outsideCounter = IV ? GetWord(false, BIG_ENDIAN_ORDER, IV) : 0; - m_startCount = m_outsideCounter; - m_insideCounter = 0; -} - -template -void SEAL_Policy::SeekToIteration(lword iterationCount) -{ - m_outsideCounter = m_startCount + (unsigned int)(iterationCount / m_iterationsPerCount); - m_insideCounter = (unsigned int)(iterationCount % m_iterationsPerCount); -} - -template -void SEAL_Policy::OperateKeystream(KeystreamOperation operation, byte *output, const byte *input, size_t iterationCount) -{ - word32 a, b, c, d, n1, n2, n3, n4; - unsigned int p, q; - - for (size_t iteration = 0; iteration < iterationCount; ++iteration) - { -#define Ttab(x) *(word32 *)((byte *)m_T.begin()+x) - - a = m_outsideCounter ^ m_R[4*m_insideCounter]; - b = rotrFixed(m_outsideCounter, 8U) ^ m_R[4*m_insideCounter+1]; - c = rotrFixed(m_outsideCounter, 16U) ^ m_R[4*m_insideCounter+2]; - d = rotrFixed(m_outsideCounter, 24U) ^ m_R[4*m_insideCounter+3]; - - for (unsigned int j=0; j<2; j++) - { - p = a & 0x7fc; - b += Ttab(p); - a = rotrFixed(a, 9U); - - p = b & 0x7fc; - c += Ttab(p); - b = rotrFixed(b, 9U); - - p = c & 0x7fc; - d += Ttab(p); - c = rotrFixed(c, 9U); - - p = d & 0x7fc; - a += Ttab(p); - d = rotrFixed(d, 9U); - } - - n1 = d, n2 = b, n3 = a, n4 = c; - - p = a & 0x7fc; - b += Ttab(p); - a = rotrFixed(a, 9U); - - p = b & 0x7fc; - c += Ttab(p); - b = rotrFixed(b, 9U); - - p = c & 0x7fc; - d += Ttab(p); - c = rotrFixed(c, 9U); - - p = d & 0x7fc; - a += Ttab(p); - d = rotrFixed(d, 9U); - - // generate 8192 bits - for (unsigned int i=0; i<64; i++) - { - p = a & 0x7fc; - a = rotrFixed(a, 9U); - b += Ttab(p); - b ^= a; - - q = b & 0x7fc; - b = rotrFixed(b, 9U); - c ^= Ttab(q); - c += b; - - p = (p+c) & 0x7fc; - c = rotrFixed(c, 9U); - d += Ttab(p); - d ^= c; - - q = (q+d) & 0x7fc; - d = rotrFixed(d, 9U); - a ^= Ttab(q); - a += d; - - p = (p+a) & 0x7fc; - b ^= Ttab(p); - a = rotrFixed(a, 9U); - - q = (q+b) & 0x7fc; - c += Ttab(q); - b = rotrFixed(b, 9U); - - p = (p+c) & 0x7fc; - d ^= Ttab(p); - c = rotrFixed(c, 9U); - - q = (q+d) & 0x7fc; - d = rotrFixed(d, 9U); - a += Ttab(q); - -#define SEAL_OUTPUT(x) \ - CRYPTOPP_KEYSTREAM_OUTPUT_WORD(x, B::ToEnum(), 0, b + m_S[4*i+0]);\ - CRYPTOPP_KEYSTREAM_OUTPUT_WORD(x, B::ToEnum(), 1, c ^ m_S[4*i+1]);\ - CRYPTOPP_KEYSTREAM_OUTPUT_WORD(x, B::ToEnum(), 2, d + m_S[4*i+2]);\ - CRYPTOPP_KEYSTREAM_OUTPUT_WORD(x, B::ToEnum(), 3, a ^ m_S[4*i+3]); - - CRYPTOPP_KEYSTREAM_OUTPUT_SWITCH(SEAL_OUTPUT, 4*4); - - if (i & 1) - { - a += n3; - b += n4; - c ^= n3; - d ^= n4; - } - else - { - a += n1; - b += n2; - c ^= n1; - d ^= n2; - } - } - - if (++m_insideCounter == m_iterationsPerCount) - { - ++m_outsideCounter; - m_insideCounter = 0; - } - } - - a = b = c = d = n1 = n2 = n3 = n4 = 0; - p = q = 0; -} - -template class SEAL_Policy; -template class SEAL_Policy; - -NAMESPACE_END -- cgit v1.2.3