1*b1cdbd2cSJim Jagielski /**************************************************************
2*b1cdbd2cSJim Jagielski *
3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one
4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file
5*b1cdbd2cSJim Jagielski * distributed with this work for additional information
6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file
7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the
8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance
9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at
10*b1cdbd2cSJim Jagielski *
11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0
12*b1cdbd2cSJim Jagielski *
13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing,
14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an
15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the
17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations
18*b1cdbd2cSJim Jagielski * under the License.
19*b1cdbd2cSJim Jagielski *
20*b1cdbd2cSJim Jagielski *************************************************************/
21*b1cdbd2cSJim Jagielski
22*b1cdbd2cSJim Jagielski
23*b1cdbd2cSJim Jagielski
24*b1cdbd2cSJim Jagielski // MARKER(update_precomp.py): autogen include statement, do not remove
25*b1cdbd2cSJim Jagielski #include "precompiled_package.hxx"
26*b1cdbd2cSJim Jagielski
27*b1cdbd2cSJim Jagielski #include <rtl/cipher.h>
28*b1cdbd2cSJim Jagielski #include <rtl/ref.hxx>
29*b1cdbd2cSJim Jagielski
30*b1cdbd2cSJim Jagielski #include "blowfishcontext.hxx"
31*b1cdbd2cSJim Jagielski
32*b1cdbd2cSJim Jagielski using namespace ::com::sun::star;
33*b1cdbd2cSJim Jagielski
34*b1cdbd2cSJim Jagielski // static
Create(const uno::Sequence<sal_Int8> & aDerivedKey,const uno::Sequence<sal_Int8> & aInitVector,bool bEncrypt)35*b1cdbd2cSJim Jagielski uno::Reference< xml::crypto::XCipherContext > BlowfishCFB8CipherContext::Create( const uno::Sequence< sal_Int8 >& aDerivedKey, const uno::Sequence< sal_Int8 >& aInitVector, bool bEncrypt )
36*b1cdbd2cSJim Jagielski {
37*b1cdbd2cSJim Jagielski ::rtl::Reference< BlowfishCFB8CipherContext > xResult = new BlowfishCFB8CipherContext();
38*b1cdbd2cSJim Jagielski xResult->m_pCipher = rtl_cipher_create( rtl_Cipher_AlgorithmBF, rtl_Cipher_ModeStream );
39*b1cdbd2cSJim Jagielski if ( !xResult->m_pCipher )
40*b1cdbd2cSJim Jagielski throw uno::RuntimeException( ::rtl::OUString::createFromAscii( "Can not create cipher!\n" ),
41*b1cdbd2cSJim Jagielski uno::Reference< XInterface >() );
42*b1cdbd2cSJim Jagielski
43*b1cdbd2cSJim Jagielski if ( rtl_Cipher_E_None != rtl_cipher_init(
44*b1cdbd2cSJim Jagielski xResult->m_pCipher,
45*b1cdbd2cSJim Jagielski bEncrypt ? rtl_Cipher_DirectionEncode : rtl_Cipher_DirectionDecode,
46*b1cdbd2cSJim Jagielski reinterpret_cast< const sal_uInt8* >( aDerivedKey.getConstArray() ),
47*b1cdbd2cSJim Jagielski aDerivedKey.getLength(),
48*b1cdbd2cSJim Jagielski reinterpret_cast< const sal_uInt8* >( aInitVector.getConstArray() ),
49*b1cdbd2cSJim Jagielski aInitVector.getLength() ) )
50*b1cdbd2cSJim Jagielski {
51*b1cdbd2cSJim Jagielski throw uno::RuntimeException( ::rtl::OUString::createFromAscii( "Can not initialize cipher!\n" ),
52*b1cdbd2cSJim Jagielski uno::Reference< XInterface >() );
53*b1cdbd2cSJim Jagielski }
54*b1cdbd2cSJim Jagielski
55*b1cdbd2cSJim Jagielski xResult->m_bEncrypt = bEncrypt;
56*b1cdbd2cSJim Jagielski
57*b1cdbd2cSJim Jagielski return uno::Reference< xml::crypto::XCipherContext >( xResult.get() );
58*b1cdbd2cSJim Jagielski }
59*b1cdbd2cSJim Jagielski
~BlowfishCFB8CipherContext()60*b1cdbd2cSJim Jagielski BlowfishCFB8CipherContext::~BlowfishCFB8CipherContext()
61*b1cdbd2cSJim Jagielski {
62*b1cdbd2cSJim Jagielski if ( m_pCipher )
63*b1cdbd2cSJim Jagielski {
64*b1cdbd2cSJim Jagielski rtl_cipher_destroy ( m_pCipher );
65*b1cdbd2cSJim Jagielski m_pCipher = NULL;
66*b1cdbd2cSJim Jagielski }
67*b1cdbd2cSJim Jagielski }
68*b1cdbd2cSJim Jagielski
convertWithCipherContext(const uno::Sequence<::sal_Int8> & aData)69*b1cdbd2cSJim Jagielski uno::Sequence< sal_Int8 > SAL_CALL BlowfishCFB8CipherContext::convertWithCipherContext( const uno::Sequence< ::sal_Int8 >& aData )
70*b1cdbd2cSJim Jagielski throw( lang::IllegalArgumentException, lang::DisposedException, uno::RuntimeException )
71*b1cdbd2cSJim Jagielski {
72*b1cdbd2cSJim Jagielski ::osl::MutexGuard aGuard( m_aMutex );
73*b1cdbd2cSJim Jagielski if ( !m_pCipher )
74*b1cdbd2cSJim Jagielski throw lang::DisposedException();
75*b1cdbd2cSJim Jagielski
76*b1cdbd2cSJim Jagielski uno::Sequence< sal_Int8 > aResult( aData.getLength() );
77*b1cdbd2cSJim Jagielski rtlCipherError nError = rtl_Cipher_E_None;
78*b1cdbd2cSJim Jagielski
79*b1cdbd2cSJim Jagielski if ( m_bEncrypt )
80*b1cdbd2cSJim Jagielski {
81*b1cdbd2cSJim Jagielski rtl_cipher_encode( m_pCipher,
82*b1cdbd2cSJim Jagielski aData.getConstArray(),
83*b1cdbd2cSJim Jagielski aData.getLength(),
84*b1cdbd2cSJim Jagielski reinterpret_cast< sal_uInt8* >( aResult.getArray() ),
85*b1cdbd2cSJim Jagielski aResult.getLength() );
86*b1cdbd2cSJim Jagielski }
87*b1cdbd2cSJim Jagielski else
88*b1cdbd2cSJim Jagielski {
89*b1cdbd2cSJim Jagielski rtl_cipher_decode( m_pCipher,
90*b1cdbd2cSJim Jagielski aData.getConstArray(),
91*b1cdbd2cSJim Jagielski aData.getLength(),
92*b1cdbd2cSJim Jagielski reinterpret_cast< sal_uInt8* >( aResult.getArray() ),
93*b1cdbd2cSJim Jagielski aResult.getLength() );
94*b1cdbd2cSJim Jagielski }
95*b1cdbd2cSJim Jagielski
96*b1cdbd2cSJim Jagielski if ( rtl_Cipher_E_None != nError )
97*b1cdbd2cSJim Jagielski {
98*b1cdbd2cSJim Jagielski throw uno::RuntimeException( ::rtl::OUString::createFromAscii( "Can not decrypt/encrypt with cipher!\n" ),
99*b1cdbd2cSJim Jagielski uno::Reference< uno::XInterface >() );
100*b1cdbd2cSJim Jagielski }
101*b1cdbd2cSJim Jagielski
102*b1cdbd2cSJim Jagielski return aResult;
103*b1cdbd2cSJim Jagielski }
104*b1cdbd2cSJim Jagielski
finalizeCipherContextAndDispose()105*b1cdbd2cSJim Jagielski uno::Sequence< ::sal_Int8 > SAL_CALL BlowfishCFB8CipherContext::finalizeCipherContextAndDispose()
106*b1cdbd2cSJim Jagielski throw( lang::DisposedException, uno::RuntimeException )
107*b1cdbd2cSJim Jagielski {
108*b1cdbd2cSJim Jagielski ::osl::MutexGuard aGuard( m_aMutex );
109*b1cdbd2cSJim Jagielski if ( !m_pCipher )
110*b1cdbd2cSJim Jagielski throw lang::DisposedException();
111*b1cdbd2cSJim Jagielski
112*b1cdbd2cSJim Jagielski rtl_cipher_destroy ( m_pCipher );
113*b1cdbd2cSJim Jagielski m_pCipher = NULL;
114*b1cdbd2cSJim Jagielski
115*b1cdbd2cSJim Jagielski return uno::Sequence< sal_Int8 >();
116*b1cdbd2cSJim Jagielski }
117*b1cdbd2cSJim Jagielski
118*b1cdbd2cSJim Jagielski
119