113 lines
4.1 KiB
C++
113 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <rtl/cipher.h>
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#include <rtl/ref.hxx>
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#include "blowfishcontext.hxx"
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using namespace ::com::sun::star;
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// static
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uno::Reference< xml::crypto::XCipherContext > BlowfishCFB8CipherContext::Create( const uno::Sequence< sal_Int8 >& aDerivedKey, const uno::Sequence< sal_Int8 >& aInitVector, bool bEncrypt )
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{
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::rtl::Reference< BlowfishCFB8CipherContext > xResult = new BlowfishCFB8CipherContext();
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xResult->m_pCipher = rtl_cipher_create( rtl_Cipher_AlgorithmBF, rtl_Cipher_ModeStream );
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if ( !xResult->m_pCipher )
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throw uno::RuntimeException("Can not create cipher!",
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uno::Reference< XInterface >() );
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if ( rtl_Cipher_E_None != rtl_cipher_init(
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xResult->m_pCipher,
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bEncrypt ? rtl_Cipher_DirectionEncode : rtl_Cipher_DirectionDecode,
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reinterpret_cast< const sal_uInt8* >( aDerivedKey.getConstArray() ),
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aDerivedKey.getLength(),
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reinterpret_cast< const sal_uInt8* >( aInitVector.getConstArray() ),
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aInitVector.getLength() ) )
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{
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throw uno::RuntimeException("Can not initialize cipher!",
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uno::Reference< XInterface >() );
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}
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xResult->m_bEncrypt = bEncrypt;
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return uno::Reference< xml::crypto::XCipherContext >( xResult.get() );
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}
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BlowfishCFB8CipherContext::~BlowfishCFB8CipherContext()
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{
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if ( m_pCipher )
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{
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rtl_cipher_destroy ( m_pCipher );
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m_pCipher = NULL;
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}
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}
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uno::Sequence< sal_Int8 > SAL_CALL BlowfishCFB8CipherContext::convertWithCipherContext( const uno::Sequence< ::sal_Int8 >& aData )
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throw( lang::IllegalArgumentException, lang::DisposedException, uno::RuntimeException )
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if ( !m_pCipher )
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throw lang::DisposedException();
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uno::Sequence< sal_Int8 > aResult( aData.getLength() );
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rtlCipherError nError = rtl_Cipher_E_None;
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if ( m_bEncrypt )
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{
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rtl_cipher_encode( m_pCipher,
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aData.getConstArray(),
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aData.getLength(),
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reinterpret_cast< sal_uInt8* >( aResult.getArray() ),
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aResult.getLength() );
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}
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else
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{
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rtl_cipher_decode( m_pCipher,
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aData.getConstArray(),
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aData.getLength(),
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reinterpret_cast< sal_uInt8* >( aResult.getArray() ),
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aResult.getLength() );
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}
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if ( rtl_Cipher_E_None != nError )
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{
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throw uno::RuntimeException("Can not decrypt/encrypt with cipher!",
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uno::Reference< uno::XInterface >() );
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}
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return aResult;
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}
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uno::Sequence< ::sal_Int8 > SAL_CALL BlowfishCFB8CipherContext::finalizeCipherContextAndDispose()
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throw( lang::DisposedException, uno::RuntimeException )
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if ( !m_pCipher )
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throw lang::DisposedException();
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rtl_cipher_destroy ( m_pCipher );
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m_pCipher = NULL;
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return uno::Sequence< sal_Int8 >();
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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