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/*************************************************************************
*
* 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.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_package.hxx"
#include <rtl/cipher.h>
#include <rtl/ref.hxx>
#include "blowfishcontext.hxx"
using namespace ::com::sun::star;
// static
uno::Reference< xml::crypto::XCipherContext > BlowfishCFB8CipherContext::Create( const uno::Sequence< sal_Int8 >& aDerivedKey, const uno::Sequence< sal_Int8 >& aInitVector, bool bEncrypt )
{
::rtl::Reference< BlowfishCFB8CipherContext > xResult = new BlowfishCFB8CipherContext();
xResult->m_pCipher = rtl_cipher_create( rtl_Cipher_AlgorithmBF, rtl_Cipher_ModeStream );
if ( !xResult->m_pCipher )
throw uno::RuntimeException( ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Can not create cipher!")),
uno::Reference< XInterface >() );
if ( rtl_Cipher_E_None != rtl_cipher_init(
xResult->m_pCipher,
bEncrypt ? rtl_Cipher_DirectionEncode : rtl_Cipher_DirectionDecode,
reinterpret_cast< const sal_uInt8* >( aDerivedKey.getConstArray() ),
aDerivedKey.getLength(),
reinterpret_cast< const sal_uInt8* >( aInitVector.getConstArray() ),
aInitVector.getLength() ) )
{
throw uno::RuntimeException( ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Can not initialize cipher!") ),
uno::Reference< XInterface >() );
}
xResult->m_bEncrypt = bEncrypt;
return uno::Reference< xml::crypto::XCipherContext >( xResult.get() );
}
BlowfishCFB8CipherContext::~BlowfishCFB8CipherContext()
{
if ( m_pCipher )
{
rtl_cipher_destroy ( m_pCipher );
m_pCipher = NULL;
}
}
uno::Sequence< sal_Int8 > SAL_CALL BlowfishCFB8CipherContext::convertWithCipherContext( const uno::Sequence< ::sal_Int8 >& aData )
throw( lang::IllegalArgumentException, lang::DisposedException, uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( !m_pCipher )
throw lang::DisposedException();
uno::Sequence< sal_Int8 > aResult( aData.getLength() );
rtlCipherError nError = rtl_Cipher_E_None;
if ( m_bEncrypt )
{
rtl_cipher_encode( m_pCipher,
aData.getConstArray(),
aData.getLength(),
reinterpret_cast< sal_uInt8* >( aResult.getArray() ),
aResult.getLength() );
}
else
{
rtl_cipher_decode( m_pCipher,
aData.getConstArray(),
aData.getLength(),
reinterpret_cast< sal_uInt8* >( aResult.getArray() ),
aResult.getLength() );
}
if ( rtl_Cipher_E_None != nError )
{
throw uno::RuntimeException( ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Can not decrypt/encrypt with cipher!") ),
uno::Reference< uno::XInterface >() );
}
return aResult;
}
uno::Sequence< ::sal_Int8 > SAL_CALL BlowfishCFB8CipherContext::finalizeCipherContextAndDispose()
throw( lang::DisposedException, uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( !m_pCipher )
throw lang::DisposedException();
rtl_cipher_destroy ( m_pCipher );
m_pCipher = NULL;
return uno::Sequence< sal_Int8 >();
}
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