diff options
Diffstat (limited to 'xmlsecurity/source/xmlsec/nss/ciphercontext.cxx')
-rw-r--r-- | xmlsecurity/source/xmlsec/nss/ciphercontext.cxx | 146 |
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; + +} + |