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-rw-r--r--src/libs/7zip/win/CPP/7zip/Crypto/ZipCrypto.cpp88
1 files changed, 0 insertions, 88 deletions
diff --git a/src/libs/7zip/win/CPP/7zip/Crypto/ZipCrypto.cpp b/src/libs/7zip/win/CPP/7zip/Crypto/ZipCrypto.cpp
deleted file mode 100644
index baaaf98e3..000000000
--- a/src/libs/7zip/win/CPP/7zip/Crypto/ZipCrypto.cpp
+++ /dev/null
@@ -1,88 +0,0 @@
-// Crypto/ZipCrypto.cpp
-
-#include "StdAfx.h"
-
-#include "../../../C/7zCrc.h"
-
-#include "../Common/StreamUtils.h"
-
-#include "RandGen.h"
-#include "ZipCrypto.h"
-
-namespace NCrypto {
-namespace NZip {
-
-void CCipher::UpdateKeys(Byte b)
-{
- Keys[0] = CRC_UPDATE_BYTE(Keys[0], b);
- Keys[1] = (Keys[1] + (Keys[0] & 0xFF)) * 0x8088405 + 1;
- Keys[2] = CRC_UPDATE_BYTE(Keys[2], (Byte)(Keys[1] >> 24));
-}
-
-STDMETHODIMP CCipher::CryptoSetPassword(const Byte *password, UInt32 passwordLen)
-{
- Keys[0] = 0x12345678;
- Keys[1] = 0x23456789;
- Keys[2] = 0x34567890;
- UInt32 i;
- for (i = 0; i < passwordLen; i++)
- UpdateKeys(password[i]);
- for (i = 0; i < 3; i++)
- Keys2[i] = Keys[i];
- return S_OK;
-}
-
-STDMETHODIMP CCipher::Init()
-{
- return S_OK;
-}
-
-Byte CCipher::DecryptByteSpec()
-{
- UInt32 temp = Keys[2] | 2;
- return (Byte)((temp * (temp ^ 1)) >> 8);
-}
-
-HRESULT CEncoder::WriteHeader(ISequentialOutStream *outStream, UInt32 crc)
-{
- Byte h[kHeaderSize];
- g_RandomGenerator.Generate(h, kHeaderSize - 2);
- h[kHeaderSize - 1] = (Byte)(crc >> 24);
- h[kHeaderSize - 2] = (Byte)(crc >> 16);
- RestoreKeys();
- Filter(h, kHeaderSize);
- return WriteStream(outStream, h, kHeaderSize);
-}
-
-STDMETHODIMP_(UInt32) CEncoder::Filter(Byte *data, UInt32 size)
-{
- for (UInt32 i = 0; i < size; i++)
- {
- Byte b = data[i];
- data[i] = (Byte)(b ^ DecryptByteSpec());;
- UpdateKeys(b);
- }
- return size;
-}
-
-HRESULT CDecoder::ReadHeader(ISequentialInStream *inStream)
-{
- Byte h[kHeaderSize];
- RINOK(ReadStream_FAIL(inStream, h, kHeaderSize));
- RestoreKeys();
- Filter(h, kHeaderSize);
- return S_OK;
-}
-
-STDMETHODIMP_(UInt32) CDecoder::Filter(Byte *data, UInt32 size)
-{
- for (UInt32 i = 0; i < size; i++)
- {
- Byte c = (Byte)(data[i] ^ DecryptByteSpec());
- UpdateKeys(c);
- data[i] = c;
- }
- return size;
-}
-
-}}