summaryrefslogtreecommitdiff
path: root/lib/backupclient/BackupClientCryptoKeys.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/backupclient/BackupClientCryptoKeys.cpp')
-rw-r--r--lib/backupclient/BackupClientCryptoKeys.cpp105
1 files changed, 105 insertions, 0 deletions
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);
+}
+
+
+