Decrypts BIFF5 stream contents. More...
#include <xistream.hxx>
Public Member Functions | |
| XclImpBiff5Decrypter (sal_uInt16 nKey, sal_uInt16 nHash) | |
 Public Member Functions inherited from XclImpDecrypter | |
| XclImpDecrypter () | |
| virtual | ~XclImpDecrypter () override |
| const ErrCode & | GetError () const |
| Returns the current error code of the decrypter. More... | |
| bool | IsValid () const |
| Returns true, if the decoder has been initialized correctly. More... | |
| XclImpDecrypterRef | Clone () const |
| Creates a (ref-counted) copy of this decrypter object. More... | |
| virtual ::comphelper::DocPasswordVerifierResult | verifyPassword (const OUString &rPassword, css::uno::Sequence< css::beans::NamedValue > &o_rEncryptionData) override |
| Implementation of the comphelper::IDocPasswordVerifier interface. More... | |
| virtual ::comphelper::DocPasswordVerifierResult | verifyEncryptionData (const css::uno::Sequence< css::beans::NamedValue > &rEncryptionData) override |
| void | Update (const SvStream &rStrm, sal_uInt16 nRecSize) |
| Updates the decrypter on start of a new record or after seeking stream. More... | |
| sal_uInt16 | Read (SvStream &rStrm, void *pData, sal_uInt16 nBytes) |
| Reads and decrypts nBytes bytes and stores data into the existing(!) buffer pData. More... | |
| Public Member Functions inherited from comphelper::IDocPasswordVerifier | |
| virtual | ~IDocPasswordVerifier () |
| virtual DocPasswordVerifierResult | verifyPassword (const OUString &rPassword, css::uno::Sequence< css::beans::NamedValue > &o_rEncryptionData)=0 |
| virtual DocPasswordVerifierResult | verifyEncryptionData (const css::uno::Sequence< css::beans::NamedValue > &o_rEncryptionData)=0 |
Private Member Functions | |
| XclImpBiff5Decrypter (const XclImpBiff5Decrypter &rSrc) | |
| Private copy c'tor for OnClone(). More... | |
| virtual XclImpBiff5Decrypter * | OnClone () const override |
| Implementation of cloning this object. More... | |
| virtual css::uno::Sequence< css::beans::NamedValue > | OnVerifyPassword (const OUString &rPassword) override |
| Implements password verification and initialization of the decoder. More... | |
| virtual bool | OnVerifyEncryptionData (const css::uno::Sequence< css::beans::NamedValue > &rEncryptionData) override |
| virtual void | OnUpdate (std::size_t nOldStrmPos, std::size_t nNewStrmPos, sal_uInt16 nRecSize) override |
| Implementation of updating the decrypter. More... | |
| virtual sal_uInt16 | OnRead (SvStream &rStrm, sal_uInt8 *pnData, sal_uInt16 nBytes) override |
| Implementation of the decryption. More... | |
Private Attributes | |
| ::msfilter::MSCodec_XorXLS95 | maCodec |
| css::uno::Sequence< css::beans::NamedValue > | maEncryptionData |
| Crypto algorithm implementation. More... | |
| sal_uInt16 | mnKey |
| sal_uInt16 | mnHash |
Additional Inherited Members | |
| Protected Member Functions inherited from XclImpDecrypter | |
| XclImpDecrypter (const XclImpDecrypter &rSrc) | |
| Protected copy c'tor for OnClone(). More... | |
Detailed Description
Decrypts BIFF5 stream contents.
Definition at line 93 of file xistream.hxx.
Constructor & Destructor Documentation
◆ XclImpBiff5Decrypter() [1/2]
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explicit |
Definition at line 110 of file xistream.cxx.
Referenced by OnClone().
◆ XclImpBiff5Decrypter() [2/2]
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explicitprivate |
Private copy c'tor for OnClone().
Definition at line 116 of file xistream.cxx.
References msfilter::MSCodec_Xor95::InitCodec(), XclImpDecrypter::IsValid(), maCodec, and maEncryptionData.
Member Function Documentation
◆ OnClone()
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overrideprivatevirtual |
Implementation of cloning this object.
Implements XclImpDecrypter.
Definition at line 126 of file xistream.cxx.
References XclImpBiff5Decrypter().
◆ OnRead()
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overrideprivatevirtual |
Implementation of the decryption.
Implements XclImpDecrypter.
Definition at line 195 of file xistream.cxx.
References msfilter::MSCodec_XorXLS95::Decode(), maCodec, SvStream::ReadBytes(), and rStrm.
◆ OnUpdate()
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overrideprivatevirtual |
Implementation of updating the decrypter.
Implements XclImpDecrypter.
Definition at line 189 of file xistream.cxx.
References msfilter::MSCodec_Xor95::InitCipher(), maCodec, and msfilter::MSCodec_Xor95::Skip().
◆ OnVerifyEncryptionData()
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overrideprivatevirtual |
Implements XclImpDecrypter.
Definition at line 173 of file xistream.cxx.
References msfilter::MSCodec_Xor95::InitCodec(), maCodec, maEncryptionData, mnHash, mnKey, and msfilter::MSCodec_Xor95::VerifyKey().
◆ OnVerifyPassword()
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overrideprivatevirtual |
Implements password verification and initialization of the decoder.
Implements XclImpDecrypter.
Definition at line 131 of file xistream.cxx.
References comphelper::DocPasswordHelper::GenerateRandomByteSequence(), msfilter::MSCodec97::GetEncryptionData(), msfilter::MSCodec_Xor95::GetEncryptionData(), msfilter::MSCodec_Std97::InitKey(), msfilter::MSCodec_Xor95::InitKey(), maCodec, maEncryptionData, mnHash, mnKey, OUStringToOString(), comphelper::SequenceAsHashMap::update(), and msfilter::MSCodec_Xor95::VerifyKey().
Member Data Documentation
◆ maCodec
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private |
Definition at line 114 of file xistream.hxx.
Referenced by OnRead(), OnUpdate(), OnVerifyEncryptionData(), OnVerifyPassword(), and XclImpBiff5Decrypter().
◆ maEncryptionData
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private |
Crypto algorithm implementation.
Definition at line 115 of file xistream.hxx.
Referenced by OnVerifyEncryptionData(), OnVerifyPassword(), and XclImpBiff5Decrypter().
◆ mnHash
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private |
Definition at line 117 of file xistream.hxx.
Referenced by OnVerifyEncryptionData(), and OnVerifyPassword().
◆ mnKey
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private |
Definition at line 116 of file xistream.hxx.
Referenced by OnVerifyEncryptionData(), and OnVerifyPassword().
The documentation for this class was generated from the following files:
