mav60: #164341# support AES encryption

1 files changed, 146 insertions, 0 deletions

diff --git a/xmlsecurity/source/xmlsec/nss/ciphercontext.cxx b/xmlsecurity/source/xmlsec/nss/ciphercontext.cxx
new file mode 100644
index 000000000000..64c619d0dfae
--- /dev/null
+++ b/xmlsecurity/source/xmlsec/nss/ciphercontext.cxx
@@ -0,0 +1,146 @@
+ /*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#include <precompiled_xmlsecurity.hxx>
+
+#include <rtl/ref.hxx>
+#include "ciphercontext.hxx"
+
+using namespace ::com::sun::star;
+
+uno::Reference< xml::crypto::XCipherContext > OCipherContext::Create( CK_MECHANISM_TYPE nNSSCipherID, const uno::Sequence< ::sal_Int8 >& aKey, const uno::Sequence< ::sal_Int8 >& aInitializationVector, bool bEncryption )
+{
+    ::rtl::Reference< OCipherContext > xResult = new OCipherContext;
+
+    xResult->m_pSlot = PK11_GetBestSlot( nNSSCipherID, NULL );
+    if ( xResult->m_pSlot )
+    {
+        SECItem aKeyItem = { siBuffer, const_cast< unsigned char* >( reinterpret_cast< const unsigned char* >( aKey.getConstArray() ) ), aKey.getLength() };
+        xResult->m_pSymKey = PK11_ImportSymKey( xResult->m_pSlot, nNSSCipherID, PK11_OriginDerive, bEncryption ? CKA_ENCRYPT : CKA_DECRYPT, &aKeyItem, NULL );
+        if ( xResult->m_pSymKey )
+        {
+            SECItem aIVItem = { siBuffer, const_cast< unsigned char* >( reinterpret_cast< const unsigned char* >( aInitializationVector.getConstArray() ) ), aInitializationVector.getLength() };
+            xResult->m_pSecParam = PK11_ParamFromIV( nNSSCipherID, &aIVItem );
+            if ( xResult->m_pSecParam )
+            {
+                xResult->m_pContext = PK11_CreateContextBySymKey( nNSSCipherID, bEncryption ? CKA_ENCRYPT : CKA_DECRYPT, xResult->m_pSymKey, xResult->m_pSecParam);
+                if ( xResult->m_pContext )
+                {
+                    xResult->m_bPadding = ( PK11_GetPadMechanism( nNSSCipherID ) == nNSSCipherID );
+                    xResult->m_nBlockSize = PK11_GetBlockSize( nNSSCipherID, xResult->m_pSecParam );
+                    return xResult.get();
+                }
+            }
+        }
+    }
+
+    return uno::Reference< xml::crypto::XCipherContext >();
+}
+
+void OCipherContext::Dispose()
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+
+    if ( m_pContext )
+    {
+        PK11_DestroyContext( m_pContext, PR_TRUE );
+        m_pContext = NULL;
+    }
+
+    if ( m_pSecParam )
+    {
+        SECITEM_FreeItem( m_pSecParam, PR_TRUE );
+        m_pSecParam = NULL;
+    }
+
+    if ( m_pSymKey )
+    {
+        PK11_FreeSymKey( m_pSymKey );
+        m_pSymKey = NULL;
+    }
+
+    if ( m_pSlot )
+    {
+        PK11_FreeSlot( m_pSlot );
+        m_pSlot = NULL;
+    }
+
+    m_bDisposed = true;
+}
+
+uno::Sequence< ::sal_Int8 > SAL_CALL OCipherContext::convertWithCipherContext( const uno::Sequence< ::sal_Int8 >& aData )
+    throw ( lang::IllegalArgumentException, lang::DisposedException, uno::RuntimeException)
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+
+    if ( m_bBroken )
+        throw uno::RuntimeException();
+
+    if ( m_bDisposed )
+        throw lang::DisposedException();
+
+    if ( !m_bPadding && aData.getLength() % m_nBlockSize )
+        throw lang::IllegalArgumentException( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "CBC without padding is used, the data should contain complete blocks only." ) ), uno::Reference< uno::XInterface >(), 1 );
+
+    int nResultLen = 0;
+    uno::Sequence< sal_Int8 > aResult( aData.getLength() );
+    if ( PK11_CipherOp( m_pContext, reinterpret_cast< unsigned char* >( aResult.getArray() ), &nResultLen, aResult.getLength(), const_cast< unsigned char* >( reinterpret_cast< const unsigned char* >( aData.getConstArray() ) ), aData.getLength() ) != SECSuccess )
+    {
+        m_bBroken = true;
+        Dispose();
+        throw uno::RuntimeException();
+    }
+
+    aResult.realloc( nResultLen );
+    return aResult;
+}
+
+uno::Sequence< ::sal_Int8 > SAL_CALL OCipherContext::finalizeCipherContextAndDispose()
+    throw (lang::DisposedException, uno::RuntimeException)
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+
+    if ( m_bBroken )
+        throw uno::RuntimeException();
+
+    if ( m_bDisposed )
+        throw lang::DisposedException();
+
+    unsigned nResultLen = 0;
+    uno::Sequence< sal_Int8 > aResult( m_nBlockSize );
+    if ( PK11_DigestFinal( m_pContext, reinterpret_cast< unsigned char* >( aResult.getArray() ), &nResultLen, aResult.getLength() ) != SECSuccess )
+    {
+        m_bBroken = true;
+        Dispose();
+        throw uno::RuntimeException();
+    }
+
+    aResult.realloc( nResultLen );
+    return aResult;
+
+}
+