CVE-2022-26307: add Initialization Vectors to password storage

LibreOffice supports the storage of passwords for web connections in
the user’s configuration database. The stored passwords are encrypted
with a single master key provided by the user. A flaw in LibreOffice
existed where master key was poorly encoded resulting in weakening its
entropy from 128 to 43 bits making the stored passwords vulerable to a
brute force attack if an attacker has access to the users stored
config.

old ones default to the current all zero case and continue to work
as before

Reviewed-on: https://gerrit.libreoffice.org/c/core/+/131974
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@allotropia.de>
(cherry picked from commit 192fa1e3bfc6269f2ebb91716471485a56074aea)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/132306
Reviewed-by: Thorsten Behrens <thorsten.behrens@allotropia.de>
(cherry picked from commit ab77587ec300f5c30084471000663c46ddf25dad)

(cherry picked from commit 713296ecd30bab02d41fcd23f19afed28d916701)

Change-Id: I6fe3b02fafcce1b5e7133e77e76a5118177d77af
origin: https://github.com/LibreOffice/core/commit/55d3095f14e98e5d2aadddf392911ca2d2b6dca9.patch
bug: https://www.libreoffice.org/about-us/security/advisories/cve-2022-26307
bug-debian-security: https://security-tracker.debian.org/tracker/CVE-2022-26307

Gbp-Pq: Name 0070-CVE-2022-26307-add-Initialization-Vectors-to-passwor.patch

diff --git a/officecfg/registry/schema/org/openoffice/Office/Common.xcs b/officecfg/registry/schema/org/openoffice/Office/Common.xcs
index bb04f7ba8d2167e60f4ef52ccf2751adf7f92900..57ad0452fa032572bc8b328635a2d2a781b374e4 100644 (file)
Binary files a/officecfg/registry/schema/org/openoffice/Office/Common.xcs and b/officecfg/registry/schema/org/openoffice/Office/Common.xcs differ

diff --git a/svl/source/passwordcontainer/passwordcontainer.cxx b/svl/source/passwordcontainer/passwordcontainer.cxx
index c21f748a0c294a35851c6a6ca6b4bec276d299ff..6f819fd009f19885059213f0184ce530f83b5cab 100644 (file)
--- a/svl/source/passwordcontainer/passwordcontainer.cxx
+++ b/svl/source/passwordcontainer/passwordcontainer.cxx
@@ -185,15 +185,18 @@ PassMap StorageItem::getInfo()
 
     Sequence< OUString > aNodeNames     = ConfigItem::GetNodeNames( "Store" );
     sal_Int32 aNodeCount = aNodeNames.getLength();
-    Sequence< OUString > aPropNames( aNodeCount );
+    Sequence< OUString > aPropNames( aNodeCount * 2);
 
     std::transform(aNodeNames.begin(), aNodeNames.end(), aPropNames.begin(),
         [](const OUString& rName) -> OUString {
             return "Store/Passwordstorage['" + rName + "']/Password"; });
+    std::transform(aNodeNames.begin(), aNodeNames.end(), aPropNames.getArray() + aNodeCount,
+        [](const OUString& rName) -> OUString {
+            return "Store/Passwordstorage['" + rName + "']/InitializationVector"; });
 
     Sequence< Any > aPropertyValues = ConfigItem::GetProperties( aPropNames );
 
-    if( aPropertyValues.getLength() != aNodeCount )
+    if( aPropertyValues.getLength() != aNodeCount * 2)
     {
         OSL_FAIL( "Problems during reading" );
         return aResult;
@@ -209,14 +212,16 @@ PassMap StorageItem::getInfo()
             OUString aName = aUrlUsr[1];
 
             OUString aEPasswd;
+            OUString aIV;
             aPropertyValues[aNodeInd] >>= aEPasswd;
+            aPropertyValues[aNodeInd + aNodeCount] >>= aIV;
 
             PassMap::iterator aIter = aResult.find( aUrl );
             if( aIter != aResult.end() )
-                aIter->second.emplace_back( aName, aEPasswd );
+                aIter->second.emplace_back( aName, aEPasswd, aIV );
             else
             {
-                NamePassRecord aNewRecord( aName, aEPasswd );
+                NamePassRecord aNewRecord( aName, aEPasswd, aIV );
                 std::vector< NamePassRecord > listToAdd( 1, aNewRecord );
 
                 aResult.insert( PairUrlRecord( aUrl, listToAdd ) );
@@ -280,17 +285,19 @@ sal_Int32 StorageItem::getStorageVersion()
     return nResult;
 }
 
-bool StorageItem::getEncodedMP( OUString& aResult )
+bool StorageItem::getEncodedMP( OUString& aResult, OUString& aResultIV )
 {
     if( hasEncoded )
     {
         aResult = mEncoded;
+        aResultIV = mEncodedIV;
         return true;
     }
 
-    Sequence< OUString > aNodeNames( 2 );
+    Sequence< OUString > aNodeNames( 3 );
     aNodeNames[0] = "HasMaster";
     aNodeNames[1] = "Master";
+    aNodeNames[2] = "MasterInitializationVector";
 
     Sequence< Any > aPropertyValues = ConfigItem::GetProperties( aNodeNames );
 
@@ -302,32 +309,37 @@ bool StorageItem::getEncodedMP( OUString& aResult )
 
     aPropertyValues[0] >>= hasEncoded;
     aPropertyValues[1] >>= mEncoded;
+    aPropertyValues[2] >>= mEncodedIV;
 
     aResult = mEncoded;
+    aResultIV = mEncodedIV;
 
     return hasEncoded;
 }
 
 
-void StorageItem::setEncodedMP( const OUString& aEncoded, bool bAcceptEmpty )
+void StorageItem::setEncodedMP( const OUString& aEncoded, const OUString& aEncodedIV, bool bAcceptEmpty )
 {
-    Sequence< OUString > sendNames(3);
-    Sequence< uno::Any > sendVals(3);
+    Sequence< OUString > sendNames(4);
+    Sequence< uno::Any > sendVals(4);
 
     sendNames[0] = "HasMaster";
     sendNames[1] = "Master";
-    sendNames[2] = "StorageVersion";
+    sendNames[2] = "MasterInitializationVector";
+    sendNames[3] = "StorageVersion";
 
     bool bHasMaster = ( !aEncoded.isEmpty() || bAcceptEmpty );
     sendVals[0] <<= bHasMaster;
     sendVals[1] <<= aEncoded;
-    sendVals[2] <<= nCurrentStorageVersion;
+    sendVals[2] <<= aEncodedIV;
+    sendVals[3] <<= nCurrentStorageVersion;
 
     ConfigItem::SetModified();
     ConfigItem::PutProperties( sendNames, sendVals );
 
     hasEncoded = bHasMaster;
     mEncoded = aEncoded;
+    mEncodedIV = aEncodedIV;
 }
 
 
@@ -363,11 +375,13 @@ void StorageItem::update( const OUString& aURL, const NamePassRecord& aRecord )
     forIndex.push_back( aURL );
     forIndex.push_back( aRecord.GetUserName() );
 
-    Sequence< beans::PropertyValue > sendSeq(1);
+    Sequence< beans::PropertyValue > sendSeq(2);
 
-    sendSeq[0].Name  = "Store/Passwordstorage['" + createIndex( forIndex ) + "']/Password";
+    sendSeq[0].Name  = "Store/Passwordstorage['" + createIndex( { aURL, aRecord.GetUserName() } ) + "']/InitializationVector";
+    sendSeq[0].Value <<= aRecord.GetPersistentIV();
 
-    sendSeq[0].Value <<= aRecord.GetPersPasswords();
+    sendSeq[1].Name  = "Store/Passwordstorage['" + createIndex( forIndex ) + "']/Password";
+    sendSeq[1].Value <<= aRecord.GetPersPasswords();
 
     ConfigItem::SetModified();
     ConfigItem::SetSetProperties( "Store", sendSeq );
@@ -429,7 +443,7 @@ void SAL_CALL PasswordContainer::disposing( const EventObject& )
     }
 }
 
-std::vector< OUString > PasswordContainer::DecodePasswords( const OUString& aLine, const OUString& aMasterPasswd, css::task::PasswordRequestMode mode )
+std::vector< OUString > PasswordContainer::DecodePasswords( const OUString& aLine, const OUString& aIV, const OUString& aMasterPasswd, css::task::PasswordRequestMode mode )
 {
     if( !aMasterPasswd.isEmpty() )
     {
@@ -444,9 +458,16 @@ std::vector< OUString > PasswordContainer::DecodePasswords( const OUString& aLin
             for( int ind = 0; ind < RTL_DIGEST_LENGTH_MD5; ind++ )
                 code[ ind ] = static_cast<char>(aMasterPasswd.copy( ind*2, 2 ).toUInt32(16));
 
+            unsigned char iv[RTL_DIGEST_LENGTH_MD5] = {0};
+            if (!aIV.isEmpty())
+            {
+                for( int ind = 0; ind < RTL_DIGEST_LENGTH_MD5; ind++ )
+                    iv[ ind ] = static_cast<char>(aIV.copy( ind*2, 2 ).toUInt32(16));
+            }
+
             rtlCipherError result = rtl_cipher_init (
                     aDecoder, rtl_Cipher_DirectionDecode,
-                    code, RTL_DIGEST_LENGTH_MD5, nullptr, 0 );
+                    code, RTL_DIGEST_LENGTH_MD5, iv, RTL_DIGEST_LENGTH_MD5 );
 
             if( result == rtl_Cipher_E_None )
             {
@@ -479,7 +500,7 @@ std::vector< OUString > PasswordContainer::DecodePasswords( const OUString& aLin
         "Can't decode!", css::uno::Reference<css::uno::XInterface>(), mode);
 }
 
-OUString PasswordContainer::EncodePasswords(const std::vector< OUString >& lines, const OUString& aMasterPasswd )
+OUString PasswordContainer::EncodePasswords(const std::vector< OUString >& lines, const OUString& aIV, const OUString& aMasterPasswd)
 {
     if( !aMasterPasswd.isEmpty() )
     {
@@ -496,9 +517,16 @@ OUString PasswordContainer::EncodePasswords(const std::vector< OUString >& lines
             for( int ind = 0; ind < RTL_DIGEST_LENGTH_MD5; ind++ )
                 code[ ind ] = static_cast<char>(aMasterPasswd.copy( ind*2, 2 ).toUInt32(16));
 
+            unsigned char iv[RTL_DIGEST_LENGTH_MD5] = {0};
+            if (!aIV.isEmpty())
+            {
+                for( int ind = 0; ind < RTL_DIGEST_LENGTH_MD5; ind++ )
+                    iv[ ind ] = static_cast<char>(aIV.copy( ind*2, 2 ).toUInt32(16));
+            }
+
             rtlCipherError result = rtl_cipher_init (
                     aEncoder, rtl_Cipher_DirectionEncode,
-                    code, RTL_DIGEST_LENGTH_MD5, nullptr, 0 );
+                    code, RTL_DIGEST_LENGTH_MD5, iv, RTL_DIGEST_LENGTH_MD5 );
 
             if( result == rtl_Cipher_E_None )
             {
@@ -566,7 +594,7 @@ void PasswordContainer::UpdateVector( const OUString& aURL, std::vector< NamePas
 
             if( aRecord.HasPasswords( PERSISTENT_RECORD ) )
             {
-                aNPIter.SetPersPasswords( aRecord.GetPersPasswords() );
+                aNPIter.SetPersPasswords( aRecord.GetPersPasswords(), aRecord.GetPersistentIV() );
 
                 if( writeFile )
                 {
@@ -599,7 +627,8 @@ UserRecord PasswordContainer::CopyToUserRecord( const NamePassRecord& aRecord, b
     {
         try
         {
-            ::std::vector< OUString > aDecodedPasswords = DecodePasswords( aRecord.GetPersPasswords(), GetMasterPassword( aHandler ), css::task::PasswordRequestMode_PASSWORD_ENTER );
+            ::std::vector< OUString > aDecodedPasswords = DecodePasswords( aRecord.GetPersPasswords(), aRecord.GetPersistentIV(),
+                                                                           GetMasterPassword( aHandler ), css::task::PasswordRequestMode_PASSWORD_ENTER );
             aPasswords.insert( aPasswords.end(), aDecodedPasswords.begin(), aDecodedPasswords.end() );
         }
         catch( NoMasterException& )
@@ -644,6 +673,19 @@ void SAL_CALL PasswordContainer::addPersistent( const OUString& Url, const OUStr
     PrivateAdd( Url, UserName, Passwords, PERSISTENT_RECORD, aHandler );
 }
 
+OUString PasswordContainer::createIV()
+{
+    rtlRandomPool randomPool = mRandomPool.get();
+    unsigned char iv[RTL_DIGEST_LENGTH_MD5];
+    rtl_random_getBytes(randomPool, iv, RTL_DIGEST_LENGTH_MD5);
+    OUStringBuffer aBuffer;
+    for (sal_uInt8 i : iv)
+    {
+        aBuffer.append(OUString::number(i >> 4, 16));
+        aBuffer.append(OUString::number(i & 15, 16));
+    }
+    return aBuffer.makeStringAndClear();
+}
 
 void PasswordContainer::PrivateAdd( const OUString& Url, const OUString& UserName, const Sequence< OUString >& Passwords, char Mode, const Reference< XInteractionHandler >& aHandler )
 {
@@ -651,7 +693,11 @@ void PasswordContainer::PrivateAdd( const OUString& Url, const OUString& UserNam
     ::std::vector< OUString > aStorePass = comphelper::sequenceToContainer< std::vector<OUString> >( Passwords );
 
     if( Mode == PERSISTENT_RECORD )
-        aRecord.SetPersPasswords( EncodePasswords( aStorePass, GetMasterPassword( aHandler ) ) );
+    {
+        OUString sIV = createIV();
+        OUString sEncodedPasswords = EncodePasswords( aStorePass, sIV, GetMasterPassword( aHandler ) );
+        aRecord.SetPersPasswords( sEncodedPasswords, sIV );
+    }
     else if( Mode == MEMORY_RECORD )
         aRecord.SetMemPasswords( aStorePass );
     else
@@ -844,10 +890,10 @@ OUString const & PasswordContainer::GetMasterPassword( const Reference< XInterac
 
     if( m_aMasterPasswd.isEmpty() && aHandler.is() )
     {
-        OUString aEncodedMP;
+        OUString aEncodedMP, aEncodedMPIV;
         bool bDefaultPassword = false;
 
-        if( !m_pStorageFile->getEncodedMP( aEncodedMP ) )
+        if( !m_pStorageFile->getEncodedMP( aEncodedMP, aEncodedMPIV ) )
             aRMode = PasswordRequestMode_PASSWORD_CREATE;
         else if ( aEncodedMP.isEmpty() )
         {
@@ -869,14 +915,15 @@ OUString const & PasswordContainer::GetMasterPassword( const Reference< XInterac
                         m_aMasterPasswd = aPass;
                         std::vector< OUString > aMaster( 1, m_aMasterPasswd );
 
-                        m_pStorageFile->setEncodedMP( EncodePasswords( aMaster, m_aMasterPasswd ) );
+                        OUString sIV = createIV();
+                        m_pStorageFile->setEncodedMP( EncodePasswords( aMaster, sIV, m_aMasterPasswd ), sIV );
                     }
                     else
                     {
                         if (m_pStorageFile->getStorageVersion() == 0)
                             aPass = ReencodeAsOldHash(aPass);
 
-                        std::vector< OUString > aRM( DecodePasswords( aEncodedMP, aPass, aRMode ) );
+                        std::vector< OUString > aRM( DecodePasswords( aEncodedMP, aEncodedMPIV, aPass, aRMode ) );
                         if( aRM.empty() || aPass != aRM[0] )
                         {
                             bAskAgain = true;
@@ -1033,7 +1080,8 @@ Sequence< UrlRecord > SAL_CALL PasswordContainer::getAllPersistent( const Refere
             {
                 sal_Int32 oldLen = aUsers.getLength();
                 aUsers.realloc( oldLen + 1 );
-                aUsers[ oldLen ] = UserRecord( aNP.GetUserName(), comphelper::containerToSequence( DecodePasswords( aNP.GetPersPasswords(), GetMasterPassword( xHandler ), css::task::PasswordRequestMode_PASSWORD_ENTER ) ) );
+                aUsers[ oldLen ] = UserRecord( aNP.GetUserName(), comphelper::containerToSequence( DecodePasswords( aNP.GetPersPasswords(), aNP.GetPersistentIV(),
+                                                                                                                    GetMasterPassword( xHandler ), css::task::PasswordRequestMode_PASSWORD_ENTER ) ) );
             }
 
         if( aUsers.getLength() )
@@ -1050,12 +1098,12 @@ Sequence< UrlRecord > SAL_CALL PasswordContainer::getAllPersistent( const Refere
 sal_Bool SAL_CALL PasswordContainer::authorizateWithMasterPassword( const uno::Reference< task::XInteractionHandler >& xHandler )
 {
     bool bResult = false;
-    OUString aEncodedMP;
+    OUString aEncodedMP, aEncodedMPIV;
     uno::Reference< task::XInteractionHandler > xTmpHandler = xHandler;
     ::osl::MutexGuard aGuard( mMutex );
 
     // the method should fail if there is no master password
-    if( m_pStorageFile && m_pStorageFile->useStorage() && m_pStorageFile->getEncodedMP( aEncodedMP ) )
+    if( m_pStorageFile && m_pStorageFile->useStorage() && m_pStorageFile->getEncodedMP( aEncodedMP, aEncodedMPIV ) )
     {
         if ( aEncodedMP.isEmpty() )
         {
@@ -1124,8 +1172,8 @@ sal_Bool SAL_CALL PasswordContainer::changeMasterPassword( const uno::Reference<
 
         bool bCanChangePassword = true;
         // if there is already a stored master password it should be entered by the user before the change happen
-        OUString aEncodedMP;
-        if( !m_aMasterPasswd.isEmpty() || m_pStorageFile->getEncodedMP( aEncodedMP ) )
+        OUString aEncodedMP, aEncodedMPIV;
+        if( !m_aMasterPasswd.isEmpty() || m_pStorageFile->getEncodedMP( aEncodedMP, aEncodedMPIV ) )
             bCanChangePassword = authorizateWithMasterPassword( xTmpHandler );
 
         if ( bCanChangePassword )
@@ -1144,7 +1192,8 @@ sal_Bool SAL_CALL PasswordContainer::changeMasterPassword( const uno::Reference<
                 // store the new master password
                 m_aMasterPasswd = aPass;
                 std::vector< OUString > aMaster( 1, m_aMasterPasswd );
-                m_pStorageFile->setEncodedMP( EncodePasswords( aMaster, m_aMasterPasswd ) );
+                OUString aIV = createIV();
+                m_pStorageFile->setEncodedMP( EncodePasswords( aMaster, aIV, m_aMasterPasswd ), aIV );
 
                 // store all the entries with the new password
                 for ( const auto& rURL : aPersistent )
@@ -1169,7 +1218,7 @@ void SAL_CALL PasswordContainer::removeMasterPassword()
     if ( m_pStorageFile )
     {
         m_aMasterPasswd.clear();
-        m_pStorageFile->setEncodedMP( OUString() ); // let the master password be removed from configuration
+        m_pStorageFile->setEncodedMP( OUString(), OUString() ); // let the master password be removed from configuration
     }
 }
 
@@ -1180,8 +1229,8 @@ sal_Bool SAL_CALL PasswordContainer::hasMasterPassword(  )
     if ( !m_pStorageFile )
         throw uno::RuntimeException();
 
-    OUString aEncodedMP;
-    return ( m_pStorageFile->useStorage() && m_pStorageFile->getEncodedMP( aEncodedMP ) );
+    OUString aEncodedMP, aEncodedMPIV;
+    return ( m_pStorageFile->useStorage() && m_pStorageFile->getEncodedMP( aEncodedMP, aEncodedMPIV ) );
 }
 
 sal_Bool SAL_CALL PasswordContainer::allowPersistentStoring( sal_Bool bAllow )
@@ -1228,8 +1277,8 @@ sal_Bool SAL_CALL PasswordContainer::useDefaultMasterPassword( const uno::Refere
 
         bool bCanChangePassword = true;
         // if there is already a stored nondefault master password it should be entered by the user before the change happen
-        OUString aEncodedMP;
-        if( m_pStorageFile->getEncodedMP( aEncodedMP ) && !aEncodedMP.isEmpty() )
+        OUString aEncodedMP, aEncodedMPIV;
+        if( m_pStorageFile->getEncodedMP( aEncodedMP, aEncodedMPIV ) && !aEncodedMP.isEmpty() )
             bCanChangePassword = authorizateWithMasterPassword( xTmpHandler );
 
         if ( bCanChangePassword )
@@ -1246,7 +1295,7 @@ sal_Bool SAL_CALL PasswordContainer::useDefaultMasterPassword( const uno::Refere
 
                 // store the empty string to flag the default master password
                 m_aMasterPasswd = aPass;
-                m_pStorageFile->setEncodedMP( OUString(), true );
+                m_pStorageFile->setEncodedMP( OUString(), OUString(), true );
 
                 // store all the entries with the new password
                 for ( const auto& rURL : aPersistent )
@@ -1270,8 +1319,8 @@ sal_Bool SAL_CALL PasswordContainer::isDefaultMasterPasswordUsed()
     if ( !m_pStorageFile )
         throw uno::RuntimeException();
 
-    OUString aEncodedMP;
-    return ( m_pStorageFile->useStorage() && m_pStorageFile->getEncodedMP( aEncodedMP ) && aEncodedMP.isEmpty() );
+    OUString aEncodedMP, aEncodedMPIV;
+    return ( m_pStorageFile->useStorage() && m_pStorageFile->getEncodedMP( aEncodedMP, aEncodedMPIV ) && aEncodedMP.isEmpty() );
 }
 
 

diff --git a/svl/source/passwordcontainer/passwordcontainer.hxx b/svl/source/passwordcontainer/passwordcontainer.hxx
index c947c8534876a618b4c4cd7d0b5a101b57053cda..db6cc4a02e4354f253c4586019abcceb3c0b7c2c 100644 (file)
--- a/svl/source/passwordcontainer/passwordcontainer.hxx
+++ b/svl/source/passwordcontainer/passwordcontainer.hxx
@@ -36,6 +36,7 @@
 #include <unotools/configitem.hxx>
 #include <ucbhelper/interactionrequest.hxx>
 
+#include <rtl/random.h>
 #include <rtl/ref.hxx>
 #include <osl/mutex.hxx>
 
@@ -54,11 +55,12 @@ class NamePassRecord
     ::std::vector< OUString >                      m_aMemPass;
 
     // persistent passwords are encrypted in one string
-    bool                                                  m_bHasPersPass;
+    bool                                           m_bHasPersPass;
     OUString                                       m_aPersPass;
+    OUString                                       m_aPersistentIV;
 
     void InitArrays( bool bHasMemoryList, const ::std::vector< OUString >& aMemoryList,
-                     bool bHasPersistentList, const OUString& aPersistentList )
+                     bool bHasPersistentList, const OUString& aPersistentList, const OUString& aPersistentIV )
     {
         m_bHasMemPass = bHasMemoryList;
         if ( bHasMemoryList )
@@ -66,7 +68,10 @@ class NamePassRecord
 
         m_bHasPersPass = bHasPersistentList;
         if ( bHasPersistentList )
+        {
             m_aPersPass = aPersistentList;
+            m_aPersistentIV = aPersistentIV;
+        }
     }
 
 public:
@@ -78,11 +83,12 @@ public:
     {
     }
 
-    NamePassRecord( const OUString& aName, const OUString& aPersistentList )
+    NamePassRecord( const OUString& aName, const OUString& aPersistentList, const OUString& aPersistentIV )
         : m_aName( aName )
         , m_bHasMemPass( false )
         , m_bHasPersPass( true )
         , m_aPersPass( aPersistentList )
+        , m_aPersistentIV( aPersistentIV )
     {
     }
 
@@ -91,7 +97,8 @@ public:
         , m_bHasMemPass( false )
         , m_bHasPersPass( false )
     {
-        InitArrays( aRecord.m_bHasMemPass, aRecord.m_aMemPass, aRecord.m_bHasPersPass, aRecord.m_aPersPass );
+        InitArrays( aRecord.m_bHasMemPass, aRecord.m_aMemPass,
+                    aRecord.m_bHasPersPass, aRecord.m_aPersPass, aRecord.m_aPersistentIV );
     }
 
     NamePassRecord& operator=( const NamePassRecord& aRecord )
@@ -100,7 +107,9 @@ public:
 
         m_aMemPass.clear();
         m_aPersPass.clear();
-        InitArrays( aRecord.m_bHasMemPass, aRecord.m_aMemPass, aRecord.m_bHasPersPass, aRecord.m_aPersPass );
+        m_aPersistentIV.clear();
+        InitArrays( aRecord.m_bHasMemPass, aRecord.m_aMemPass,
+                    aRecord.m_bHasPersPass, aRecord.m_aPersPass, aRecord.m_aPersistentIV );
 
         return *this;
     }
@@ -136,15 +145,24 @@ public:
         return OUString();
     }
 
+    OUString GetPersistentIV() const
+    {
+        if ( m_bHasPersPass )
+            return m_aPersistentIV;
+
+        return OUString();
+    }
+
     void SetMemPasswords( const ::std::vector< OUString >& aMemList )
     {
         m_aMemPass = aMemList;
         m_bHasMemPass = true;
     }
 
-    void SetPersPasswords( const OUString& aPersList )
+    void SetPersPasswords( const OUString& aPersList, const OUString& aPersIV )
     {
         m_aPersPass = aPersList;
+        m_aPersistentIV = aPersIV;
         m_bHasPersPass = true;
     }
 
@@ -159,6 +177,7 @@ public:
         {
             m_bHasPersPass = false;
             m_aPersPass.clear();
+            m_aPersistentIV.clear();
         }
     }
 
@@ -182,6 +201,7 @@ private:
     PasswordContainer*     mainCont;
     bool                   hasEncoded;
     OUString        mEncoded;
+    OUString        mEncodedIV;
 
     virtual void            ImplCommit() override;
 
@@ -202,8 +222,8 @@ public:
 
     sal_Int32 getStorageVersion();
 
-    bool getEncodedMP( OUString& aResult );
-    void setEncodedMP( const OUString& aResult, bool bAcceptEnmpty = false );
+    bool getEncodedMP( OUString& aResult, OUString& aResultIV );
+    void setEncodedMP( const OUString& aResult, const OUString& aResultIV, bool bAcceptEmpty = false );
     void setUseStorage( bool bUse );
     bool useStorage();
 
@@ -224,6 +244,29 @@ private:
     css::uno::Reference< css::lang::XComponent > mComponent;
     SysCredentialsConfig mUrlContainer;
 
+    class RandomPool
+    {
+    private:
+        rtlRandomPool m_aRandomPool;
+    public:
+        RandomPool() : m_aRandomPool(rtl_random_createPool())
+        {
+        }
+        rtlRandomPool get()
+        {
+            return m_aRandomPool;
+        }
+        ~RandomPool()
+        {
+            // Clean up random pool memory
+            rtl_random_destroyPool(m_aRandomPool);
+        }
+    };
+
+    RandomPool mRandomPool;
+
+    OUString createIV();
+
     /// @throws css::uno::RuntimeException
     css::uno::Sequence< css::task::UserRecord > CopyToUserRecordSequence(
                                         const ::std::vector< NamePassRecord >& original,
@@ -274,10 +317,10 @@ css::task::UrlRecord find(
                               const css::uno::Reference< css::task::XInteractionHandler >& Handler );
 
     /// @throws css::uno::RuntimeException
-    static ::std::vector< OUString > DecodePasswords( const OUString& aLine, const OUString& aMasterPassword, css::task::PasswordRequestMode mode );
+    static ::std::vector< OUString > DecodePasswords( const OUString& aLine, const OUString& aIV, const OUString& aMasterPassword, css::task::PasswordRequestMode mode );
 
     /// @throws css::uno::RuntimeException
-    static OUString EncodePasswords(const std::vector< OUString >& lines, const OUString& aMasterPassword );
+    static OUString EncodePasswords(const std::vector< OUString >& lines, const OUString& aIV, const OUString& aMasterPassword );
 
 public:
     PasswordContainer( const css::uno::Reference< css::lang::XMultiServiceFactory >& );