From aa2943800f9c00823720af98da036813ebf5cd2c Mon Sep 17 00:00:00 2001
From: Reinhard Tartler <siretart@tauware.de>
Date: Wed, 14 Feb 2007 09:01:45 +0100
Subject: initial commit

---
 lib/backupclient/BackupClientCryptoKeys.cpp | 105 ++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 lib/backupclient/BackupClientCryptoKeys.cpp

(limited to 'lib/backupclient/BackupClientCryptoKeys.cpp')

diff --git a/lib/backupclient/BackupClientCryptoKeys.cpp b/lib/backupclient/BackupClientCryptoKeys.cpp
new file mode 100644
index 00000000..f4ecfec4
--- /dev/null
+++ b/lib/backupclient/BackupClientCryptoKeys.cpp
@@ -0,0 +1,105 @@
+// distribution boxbackup-0.10 (svn version: 494)
+//  
+// Copyright (c) 2003 - 2006
+//      Ben Summers and contributors.  All rights reserved.
+//  
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. All use of this software and associated advertising materials must 
+//    display the following acknowledgment:
+//        This product includes software developed by Ben Summers.
+// 4. The names of the Authors may not be used to endorse or promote
+//    products derived from this software without specific prior written
+//    permission.
+// 
+// [Where legally impermissible the Authors do not disclaim liability for 
+// direct physical injury or death caused solely by defects in the software 
+// unless it is modified by a third party.]
+// 
+// THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT,
+// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//  
+//  
+//  
+// --------------------------------------------------------------------------
+//
+// File
+//		Name:    BackupClientCryptoKeys.cpp
+//		Purpose: function for setting up all the backup client keys
+//		Created: 1/12/03
+//
+// --------------------------------------------------------------------------
+
+#include "Box.h"
+
+#include <string.h>
+
+#include "BackupClientCryptoKeys.h"
+#include "FileStream.h"
+#include "BackupStoreFilenameClear.h"
+#include "BackupStoreException.h"
+#include "BackupClientFileAttributes.h"
+#include "BackupStoreFile.h"
+
+#include "MemLeakFindOn.h"
+
+// --------------------------------------------------------------------------
+//
+// Function
+//		Name:    BackupClientCryptoKeys_Setup(const char *)
+//		Purpose: Read in the key material file, and set keys to all the backup elements required.
+//		Created: 1/12/03
+//
+// --------------------------------------------------------------------------
+void BackupClientCryptoKeys_Setup(const char *KeyMaterialFilename)
+{
+	// Read in the key material
+	unsigned char KeyMaterial[BACKUPCRYPTOKEYS_FILE_SIZE];
+	
+	// Open the file
+	FileStream file(KeyMaterialFilename);
+	// Read in data
+	if(!file.ReadFullBuffer(KeyMaterial, BACKUPCRYPTOKEYS_FILE_SIZE, 0))
+	{
+		THROW_EXCEPTION(BackupStoreException, CouldntLoadClientKeyMaterial)
+	}
+	
+	// Tell the filename how to encrypt
+	BackupStoreFilenameClear::SetBlowfishKey(KeyMaterial + BACKUPCRYPTOKEYS_FILENAME_KEY_START, BACKUPCRYPTOKEYS_FILENAME_KEY_LENGTH,
+		KeyMaterial + BACKUPCRYPTOKEYS_FILENAME_IV_START, BACKUPCRYPTOKEYS_FILENAME_IV_LENGTH);
+	BackupStoreFilenameClear::SetEncodingMethod(BackupStoreFilename::Encoding_Blowfish);
+
+	// Tell the attributes how to encrypt
+	BackupClientFileAttributes::SetBlowfishKey(KeyMaterial + BACKUPCRYPTOKEYS_ATTRIBUTES_KEY_START, BACKUPCRYPTOKEYS_ATTRIBUTES_KEY_LENGTH);
+	// and the secret for hashing
+	BackupClientFileAttributes::SetAttributeHashSecret(KeyMaterial + BACKUPCRYPTOKEYS_ATTRIBUTE_HASH_SECRET_START, BACKUPCRYPTOKEYS_ATTRIBUTE_HASH_SECRET_LENGTH);
+
+	// Tell the files how to encrypt
+	BackupStoreFile::SetBlowfishKeys(KeyMaterial + BACKUPCRYPTOKEYS_ATTRIBUTES_KEY_START, BACKUPCRYPTOKEYS_ATTRIBUTES_KEY_LENGTH,
+		KeyMaterial + BACKUPCRYPTOKEYS_FILE_BLOCK_ENTRY_KEY_START, BACKUPCRYPTOKEYS_FILE_BLOCK_ENTRY_KEY_LENGTH);
+#ifndef HAVE_OLD_SSL
+	// Use AES where available
+	BackupStoreFile::SetAESKey(KeyMaterial + BACKUPCRYPTOKEYS_FILE_AES_KEY_START, BACKUPCRYPTOKEYS_FILE_AES_KEY_LENGTH);
+#endif
+
+	// Wipe the key material from memory
+	::memset(KeyMaterial, 0, BACKUPCRYPTOKEYS_FILE_SIZE);
+}
+
+
+
-- 
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