diff options
Diffstat (limited to 'src/libs/7zip/unix/CPP/7zip/Crypto/Sha1.cpp')
-rw-r--r-- | src/libs/7zip/unix/CPP/7zip/Crypto/Sha1.cpp | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/src/libs/7zip/unix/CPP/7zip/Crypto/Sha1.cpp b/src/libs/7zip/unix/CPP/7zip/Crypto/Sha1.cpp deleted file mode 100644 index 82ca986c7..000000000 --- a/src/libs/7zip/unix/CPP/7zip/Crypto/Sha1.cpp +++ /dev/null @@ -1,229 +0,0 @@ -// Crypto/Sha1.cpp -// This file is based on public domain -// Steve Reid and Wei Dai's code from Crypto++ - -#include "StdAfx.h" - -#include "../../../C/RotateDefs.h" - -#include "Sha1.h" - -namespace NCrypto { -namespace NSha1 { - -// define it for speed optimization -// #define _SHA1_UNROLL - -static const unsigned kNumW = - #ifdef _SHA1_UNROLL - 16; - #else - 80; - #endif - - -#define w0(i) (W[(i)] = data[(i)]) - -#ifdef _SHA1_UNROLL -#define w1(i) (W[(i)&15] = rotlFixed(W[((i)-3)&15] ^ W[((i)-8)&15] ^ W[((i)-14)&15] ^ W[((i)-16)&15], 1)) -#else -#define w1(i) (W[(i)] = rotlFixed(W[(i)-3] ^ W[(i)-8] ^ W[(i)-14] ^ W[(i)-16], 1)) -#endif - -#define f1(x,y,z) (z^(x&(y^z))) -#define f2(x,y,z) (x^y^z) -#define f3(x,y,z) ((x&y)|(z&(x|y))) -#define f4(x,y,z) (x^y^z) - -#define RK1(a,b,c,d,e,i, f, w, k) e += f(b,c,d) + w(i) + k + rotlFixed(a,5); b = rotlFixed(b,30); - -#define R0(a,b,c,d,e,i) RK1(a,b,c,d,e,i, f1, w0, 0x5A827999) -#define R1(a,b,c,d,e,i) RK1(a,b,c,d,e,i, f1, w1, 0x5A827999) -#define R2(a,b,c,d,e,i) RK1(a,b,c,d,e,i, f2, w1, 0x6ED9EBA1) -#define R3(a,b,c,d,e,i) RK1(a,b,c,d,e,i, f3, w1, 0x8F1BBCDC) -#define R4(a,b,c,d,e,i) RK1(a,b,c,d,e,i, f4, w1, 0xCA62C1D6) - -#define RX_1_4(rx1, rx4, i) rx1(a,b,c,d,e,i); rx4(e,a,b,c,d,i+1); rx4(d,e,a,b,c,i+2); rx4(c,d,e,a,b,i+3); rx4(b,c,d,e,a,i+4); -#define RX_5(rx, i) RX_1_4(rx, rx, i); - -void CContextBase::Init() -{ - _state[0] = 0x67452301; - _state[1] = 0xEFCDAB89; - _state[2] = 0x98BADCFE; - _state[3] = 0x10325476; - _state[4] = 0xC3D2E1F0; - _count = 0; -} - -void CContextBase::GetBlockDigest(UInt32 *data, UInt32 *destDigest, bool returnRes) -{ - UInt32 a, b, c, d, e; - UInt32 W[kNumW]; - - a = _state[0]; - b = _state[1]; - c = _state[2]; - d = _state[3]; - e = _state[4]; - #ifdef _SHA1_UNROLL - RX_5(R0, 0); RX_5(R0, 5); RX_5(R0, 10); - #else - int i; - for (i = 0; i < 15; i += 5) { RX_5(R0, i); } - #endif - - RX_1_4(R0, R1, 15); - - - #ifdef _SHA1_UNROLL - RX_5(R2, 20); RX_5(R2, 25); RX_5(R2, 30); RX_5(R2, 35); - RX_5(R3, 40); RX_5(R3, 45); RX_5(R3, 50); RX_5(R3, 55); - RX_5(R4, 60); RX_5(R4, 65); RX_5(R4, 70); RX_5(R4, 75); - #else - i = 20; - for (; i < 40; i += 5) { RX_5(R2, i); } - for (; i < 60; i += 5) { RX_5(R3, i); } - for (; i < 80; i += 5) { RX_5(R4, i); } - #endif - - destDigest[0] = _state[0] + a; - destDigest[1] = _state[1] + b; - destDigest[2] = _state[2] + c; - destDigest[3] = _state[3] + d; - destDigest[4] = _state[4] + e; - - if (returnRes) - for (int i = 0 ; i < 16; i++) - data[i] = W[kNumW - 16 + i]; - - // Wipe variables - // a = b = c = d = e = 0; -} - -void CContextBase::PrepareBlock(UInt32 *block, unsigned size) const -{ - unsigned curBufferPos = size & 0xF; - block[curBufferPos++] = 0x80000000; - while (curBufferPos != (16 - 2)) - block[curBufferPos++] = 0; - const UInt64 lenInBits = (_count << 9) + ((UInt64)size << 5); - block[curBufferPos++] = (UInt32)(lenInBits >> 32); - block[curBufferPos++] = (UInt32)(lenInBits); -} - -void CContext::Update(const Byte *data, size_t size) -{ - unsigned curBufferPos = _count2; - while (size--) - { - int pos = (int)(curBufferPos & 3); - if (pos == 0) - _buffer[curBufferPos >> 2] = 0; - _buffer[curBufferPos >> 2] |= ((UInt32)*data++) << (8 * (3 - pos)); - if (++curBufferPos == kBlockSize) - { - curBufferPos = 0; - CContextBase::UpdateBlock(_buffer, false); - } - } - _count2 = curBufferPos; -} - -void CContext::UpdateRar(Byte *data, size_t size, bool rar350Mode) -{ - bool returnRes = false; - unsigned curBufferPos = _count2; - while (size--) - { - int pos = (int)(curBufferPos & 3); - if (pos == 0) - _buffer[curBufferPos >> 2] = 0; - _buffer[curBufferPos >> 2] |= ((UInt32)*data++) << (8 * (3 - pos)); - if (++curBufferPos == kBlockSize) - { - curBufferPos = 0; - CContextBase::UpdateBlock(_buffer, returnRes); - if (returnRes) - for (int i = 0; i < kBlockSizeInWords; i++) - { - UInt32 d = _buffer[i]; - data[i * 4 + 0 - kBlockSize] = (Byte)(d); - data[i * 4 + 1 - kBlockSize] = (Byte)(d >> 8); - data[i * 4 + 2 - kBlockSize] = (Byte)(d >> 16); - data[i * 4 + 3 - kBlockSize] = (Byte)(d >> 24); - } - returnRes = rar350Mode; - } - } - _count2 = curBufferPos; -} - -void CContext::Final(Byte *digest) -{ - const UInt64 lenInBits = (_count << 9) + ((UInt64)_count2 << 3); - unsigned curBufferPos = _count2; - int pos = (int)(curBufferPos & 3); - curBufferPos >>= 2; - if (pos == 0) - _buffer[curBufferPos] = 0; - _buffer[curBufferPos++] |= ((UInt32)0x80) << (8 * (3 - pos)); - - while (curBufferPos != (16 - 2)) - { - curBufferPos &= 0xF; - if (curBufferPos == 0) - UpdateBlock(); - _buffer[curBufferPos++] = 0; - } - _buffer[curBufferPos++] = (UInt32)(lenInBits >> 32); - _buffer[curBufferPos++] = (UInt32)(lenInBits); - UpdateBlock(); - - int i; - for (i = 0; i < kDigestSizeInWords; i++) - { - UInt32 state = _state[i] & 0xFFFFFFFF; - *digest++ = (Byte)(state >> 24); - *digest++ = (Byte)(state >> 16); - *digest++ = (Byte)(state >> 8); - *digest++ = (Byte)(state); - } - Init(); -} - -/////////////////////////// -// Words version - -void CContext32::Update(const UInt32 *data, size_t size) -{ - while (size--) - { - _buffer[_count2++] = *data++; - if (_count2 == kBlockSizeInWords) - { - _count2 = 0; - UpdateBlock(); - } - } -} - -void CContext32::Final(UInt32 *digest) -{ - const UInt64 lenInBits = (_count << 9) + ((UInt64)_count2 << 5); - unsigned curBufferPos = _count2; - _buffer[curBufferPos++] = 0x80000000; - while (curBufferPos != (16 - 2)) - { - curBufferPos &= 0xF; - if (curBufferPos == 0) - UpdateBlock(); - _buffer[curBufferPos++] = 0; - } - _buffer[curBufferPos++] = (UInt32)(lenInBits >> 32); - _buffer[curBufferPos++] = (UInt32)(lenInBits); - GetBlockDigest(_buffer, digest); - Init(); -} - -}} |