1 files changed, 99 insertions, 0 deletions
diff --git a/bf_svtools/source/misc1/svt_PasswordHelper.cxx b/bf_svtools/source/misc1/svt_PasswordHelper.cxx
new file mode 100644
index 000000000..8b7b841de
--- /dev/null
+++ b/bf_svtools/source/misc1/svt_PasswordHelper.cxx
@@ -0,0 +1,99 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "PasswordHelper.hxx"
+
+#include <rtl/digest.h>
+#include <bf_tools/string.hxx>
+
+using namespace com::sun::star;
+
+namespace binfilter
+{
+
+void SvPasswordHelper::GetHashPassword(uno::Sequence<sal_Int8>& rPassHash, const sal_Char* pPass, sal_uInt32 nLen)
+{
+    rPassHash.realloc(RTL_DIGEST_LENGTH_SHA1);
+
+    rtlDigestError aError = rtl_digest_SHA1 (pPass, nLen, reinterpret_cast<sal_uInt8*>(rPassHash.getArray()), rPassHash.getLength());
+    if (aError != rtl_Digest_E_None)
+    {
+        rPassHash.realloc(0);
+    }
+}
+
+void SvPasswordHelper::GetHashPasswordLittleEndian(uno::Sequence<sal_Int8>& rPassHash, const String& sPass)
+{
+    xub_StrLen nSize(sPass.Len());
+    sal_Char* pCharBuffer = new sal_Char[nSize * sizeof(sal_Unicode)];
+
+    for (xub_StrLen i = 0; i < nSize; ++i)
+    {
+        sal_Unicode ch(sPass.GetChar(i));
+        pCharBuffer[2 * i] = static_cast< sal_Char >(ch & 0xFF);
+        pCharBuffer[2 * i + 1] = static_cast< sal_Char >(ch >> 8);
+    }
+
+    GetHashPassword(rPassHash, pCharBuffer, nSize * sizeof(sal_Unicode));
+
+    delete[] pCharBuffer;
+}
+
+void SvPasswordHelper::GetHashPasswordBigEndian(uno::Sequence<sal_Int8>& rPassHash, const String& sPass)
+{
+    xub_StrLen nSize(sPass.Len());
+    sal_Char* pCharBuffer = new sal_Char[nSize * sizeof(sal_Unicode)];
+
+    for (xub_StrLen i = 0; i < nSize; ++i)
+    {
+        sal_Unicode ch(sPass.GetChar(i));
+        pCharBuffer[2 * i] = static_cast< sal_Char >(ch >> 8);
+        pCharBuffer[2 * i + 1] = static_cast< sal_Char >(ch & 0xFF);
+    }
+
+    GetHashPassword(rPassHash, pCharBuffer, nSize * sizeof(sal_Unicode));
+
+    delete[] pCharBuffer;
+}
+
+void SvPasswordHelper::GetHashPassword(uno::Sequence<sal_Int8>& rPassHash, const String& sPass)
+{
+    GetHashPasswordLittleEndian(rPassHash, sPass);
+}
+
+bool SvPasswordHelper::CompareHashPassword(const uno::Sequence<sal_Int8>& rOldPassHash, const String& sNewPass)
+{
+    bool bResult = false;
+
+    uno::Sequence<sal_Int8> aNewPass(RTL_DIGEST_LENGTH_SHA1);
+    GetHashPasswordLittleEndian(aNewPass, sNewPass);
+    if (aNewPass == rOldPassHash)
+        bResult = true;
+    else
+    {
+        GetHashPasswordBigEndian(aNewPass, sNewPass);
+        bResult = (aNewPass == rOldPassHash);
+    }
+
+    return bResult;
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */