Dbx_tree: folders restructurization

git-svn-id: http://svn.miranda-ng.org/main/trunk@1883 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c

2 files changed, 194 insertions, 0 deletions

diff --git a/plugins/Dbx_tree/encryption/ARC4/src/ARC4.cpp b/plugins/Dbx_tree/encryption/ARC4/src/ARC4.cpp
new file mode 100644
index 0000000000..7f3780e6a2
--- /dev/null
+++ b/plugins/Dbx_tree/encryption/ARC4/src/ARC4.cpp
@@ -0,0 +1,129 @@
+/*

+

+dbx_tree: tree database driver for Miranda IM

+

+Copyright 2007-2008 Michael "Protogenes" Kunz,

+

+This program is free software; you can redistribute it and/or

+modify it under the terms of the GNU General Public License

+as published by the Free Software Foundation; either version 2

+of the License, or (at your option) any later version.

+

+This program is distributed in the hope that it will be useful,

+but WITHOUT ANY WARRANTY; without even the implied warranty of

+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+GNU General Public License for more details.

+

+You should have received a copy of the GNU General Public License

+along with this program; if not, write to the Free Software

+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

+

+*/

+

+#include "ARC4.h"

+#include <string.h>

+

+const wchar_t * ARC4::Name()

+{

+	return cName;

+}

+const wchar_t * ARC4::Description()

+{

+	return cDescription;

+}

+const uint32_t  ARC4::BlockSizeBytes()

+{

+	return cBlockSizeBytes;

+}

+const bool      ARC4::IsStreamCipher()

+{

+	return cIsStreamCipher;

+}

+

+ARC4::ARC4()

+{

+

+}

+ARC4::~ARC4()

+{

+

+}

+

+CCipher::TCipherInterface* ARC4::Create() 

+{

+	return (new ARC4())->m_Interface;

+}

+

+void ARC4::SetKey(void* Key, uint32_t KeyLength)

+{	

+	uint8_t swapbyte;

+	uint8_t index1;

+	uint8_t index2;

+	unsigned int i;

+

+	uint8_t * k = (uint8_t *) Key;

+

+	for (i = 0; i < 256; ++i)

+		State[i] = i;

+

+	x = 0;

+	y = 0;

+	index1 = 0;

+	index2 = 0;

+	for (i = 0; i < 256; ++i)

+	{

+		index2 = (k[index1] + State[i] + index2) & 0xff;

+		swapbyte = State[i];

+		State[i] = State[index2];

+		State[index2] = swapbyte;

+		index1 = (index1 + 1) % KeyLength;

+	}

+

+	for (i = 0; i < 3742; ++i)

+		Stream();

+

+	Backx = x;

+	Backy = y;

+	memcpy(BackState, State, sizeof(State));

+}

+

+inline uint8_t ARC4::Stream()

+{

+	uint8_t swapbyte;

+

+	x = (x + 1) & 0xff;

+	y = (State[x] + y) & 0xff;

+

+	swapbyte = State[x];

+	State[x] = State[y];

+	State[y] = swapbyte;

+

+	return State[ (State[x] + State[y]) & 0xff ];

+}

+

+void ARC4::Encrypt(void* Data, uint32_t Size, uint32_t Nonce, uint32_t StartByte)

+{	

+	uint8_t * dat = (uint8_t *) Data;

+	x = Backx;

+	y = Backy;

+	memcpy(State, BackState, sizeof(State));

+

+	for (unsigned int i = (Nonce + (Nonce >> 8) + (Nonce >> 16) + (Nonce >> 24)) & 0x1ff; i > 0; --i)

+		Stream();

+

+	while (Size > 0)

+	{

+		(*dat) = (*dat) ^ Stream();

+		--Size;

+		++dat;

+	}

+}

+void ARC4::Decrypt(void* Data, uint32_t Size, uint32_t Nonce, uint32_t StartByte)

+{

+	Encrypt(Data, Size, Nonce, StartByte);

+}

+

+extern "C" __declspec(dllexport) const TCipherInfo* CipherInfo(void * Reserved)

+{

+	return &ARC4::cCipherInfo;

+}

diff --git a/plugins/Dbx_tree/encryption/ARC4/src/ARC4.h b/plugins/Dbx_tree/encryption/ARC4/src/ARC4.h
new file mode 100644
index 0000000000..48fdc35312
--- /dev/null
+++ b/plugins/Dbx_tree/encryption/ARC4/src/ARC4.h
@@ -0,0 +1,65 @@
+/*

+

+dbx_tree: tree database driver for Miranda IM

+

+Copyright 2007-2008 Michael "Protogenes" Kunz,

+

+This program is free software; you can redistribute it and/or

+modify it under the terms of the GNU General Public License

+as published by the Free Software Foundation; either version 2

+of the License, or (at your option) any later version.

+

+This program is distributed in the hope that it will be useful,

+but WITHOUT ANY WARRANTY; without even the implied warranty of

+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+GNU General Public License for more details.

+

+You should have received a copy of the GNU General Public License

+along with this program; if not, write to the Free Software

+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

+

+*/

+

+#pragma once

+

+#include "Cipher.h"

+

+class ARC4 : public CCipher

+{

+private:	

+	uint8_t x;

+	uint8_t y;

+	uint8_t State[256];

+

+	uint8_t Backx;

+	uint8_t Backy;

+	uint8_t BackState[256];

+

+	uint8_t Stream();

+

+  static const wchar_t* cName;

+  static const wchar_t* cDescription;

+	static const uint32_t cBlockSizeBytes = 1;

+	static const bool     cIsStreamCipher = true;

+

+public:

+	const wchar_t * __cdecl Name();

+	const wchar_t * __cdecl Description();

+	const uint32_t  __cdecl BlockSizeBytes();

+	const bool      __cdecl IsStreamCipher();

+

+	static const TCipherInfo cCipherInfo;

+

+	ARC4();

+	~ARC4();

+	static CCipher::TCipherInterface* __cdecl Create();

+

+	void __cdecl SetKey(void* Key, uint32_t KeyLength);

+	void __cdecl Encrypt(void* Data, uint32_t Size, uint32_t Nonce, uint32_t StartByte);

+	void __cdecl Decrypt(void* Data, uint32_t Size, uint32_t Nonce, uint32_t StartByte);

+

+};

+

+const wchar_t* ARC4::cName          = L"ARC4";

+const wchar_t* ARC4::cDescription   = L"Streamcipher - 8bit step, fast, Ron Rivest 1987";

+const TCipherInfo ARC4::cCipherInfo = {sizeof(TCipherInfo), 'ARC4', cName, cDescription, &ARC4::Create};