LibreOffice Module oox (master): oox::crypto::Standard2007Engine Class Reference

LibreOffice Module oox (master) 1

#include <Standard2007Engine.hxx>

Inheritance diagram for oox::crypto::Standard2007Engine:

Collaboration diagram for oox::crypto::Standard2007Engine:

Public Member Functions
	Standard2007Engine ()=default

bool	readEncryptionInfo (css::uno::Reference< css::io::XInputStream > &rxInputStream) override

virtual bool	generateEncryptionKey (OUString const &rPassword) override

virtual bool	decrypt (BinaryXInputStream &aInputStream, BinaryXOutputStream &aOutputStream) override

bool	checkDataIntegrity () override

void	encrypt (const css::uno::Reference< css::io::XInputStream > &rxInputStream, css::uno::Reference< css::io::XOutputStream > &rxOutputStream, sal_uInt32 nSize) override

virtual void	writeEncryptionInfo (BinaryXOutputStream &rStream) override

virtual bool	setupEncryption (OUString const &rPassword) override

Public Member Functions inherited from oox::crypto::CryptoEngine
	CryptoEngine ()

virtual	~CryptoEngine ()

virtual bool	readEncryptionInfo (css::uno::Reference< css::io::XInputStream > &rxInputStream)=0

virtual bool	generateEncryptionKey (const OUString &rPassword)=0

virtual bool	decrypt (BinaryXInputStream &aInputStream, BinaryXOutputStream &aOutputStream)=0

virtual void	writeEncryptionInfo (BinaryXOutputStream &rStream)=0

virtual bool	setupEncryption (const OUString &rPassword)=0

virtual void	encrypt (const css::uno::Reference< css::io::XInputStream > &rxInputStream, css::uno::Reference< css::io::XOutputStream > &rxOutputStream, sal_uInt32 nSize)=0

virtual bool	checkDataIntegrity ()=0

Private Member Functions
bool	generateVerifier ()

bool	calculateEncryptionKey (std::u16string_view rPassword)

Private Attributes
msfilter::StandardEncryptionInfo	mInfo

Additional Inherited Members
Protected Attributes inherited from oox::crypto::CryptoEngine
std::vector< sal_uInt8 >	mKey

Detailed Description

Definition at line 27 of file Standard2007Engine.hxx.

Constructor & Destructor Documentation

◆ Standard2007Engine()

oox::crypto::Standard2007Engine::Standard2007Engine ( )

default

Member Function Documentation

◆ calculateEncryptionKey()

bool oox::crypto::Standard2007Engine::calculateEncryptionKey ( std::u16string_view rPassword )

private

Definition at line 70 of file Standard2007Engine.cxx.

References comphelper::Hash::calculateHash(), namespaces::i, mInfo, oox::crypto::CryptoEngine::mKey, p, msfilter::EncryptionVerifierAES::salt, msfilter::EncryptionVerifierAES::saltSize, comphelper::SHA1, comphelper::SHA1_HASH_LENGTH, msfilter::StandardEncryptionInfo::verifier, and oox::ByteOrderConverter::writeLittleEndian().

Referenced by generateEncryptionKey(), and setupEncryption().

◆ checkDataIntegrity()

bool oox::crypto::Standard2007Engine::checkDataIntegrity ( )

overridevirtual

Implements oox::crypto::CryptoEngine.

Definition at line 184 of file Standard2007Engine.cxx.

◆ decrypt()

bool oox::crypto::Standard2007Engine::decrypt	(	BinaryXInputStream &	aInputStream,
		BinaryXOutputStream &	aOutputStream
	)

overridevirtual

Implements oox::crypto::CryptoEngine.

Definition at line 160 of file Standard2007Engine.cxx.

References oox::crypto::Crypto::AES_128_ECB, oox::crypto::CryptoEngine::mKey, oox::BinaryXInputStream::readMemory(), oox::BinaryInputStream::readuInt32(), oox::BinaryXInputStream::skip(), oox::crypto::Decrypt::update(), and oox::BinaryXOutputStream::writeMemory().

◆ encrypt()

void oox::crypto::Standard2007Engine::encrypt	(	const css::uno::Reference< css::io::XInputStream > &	rxInputStream,
		css::uno::Reference< css::io::XOutputStream > &	rxOutputStream,
		sal_uInt32	nSize
	)

overridevirtual

Implements oox::crypto::CryptoEngine.

Definition at line 243 of file Standard2007Engine.cxx.

References oox::crypto::Crypto::AES_128_ECB, oox::crypto::CryptoEngine::mKey, oox::BinaryXInputStream::readMemory(), oox::crypto::roundUp(), U, oox::crypto::Encrypt::update(), oox::BinaryXOutputStream::writeMemory(), and oox::BinaryOutputStream::WriteUInt32().

◆ generateEncryptionKey()

bool oox::crypto::Standard2007Engine::generateEncryptionKey ( OUString const & rPassword )

overridevirtual

Implements oox::crypto::CryptoEngine.

Definition at line 118 of file Standard2007Engine.cxx.

References oox::crypto::Decrypt::aes128ecb(), calculateEncryptionKey(), comphelper::Hash::calculateHash(), msfilter::ENCRYPTED_VERIFIER_LENGTH, msfilter::EncryptionVerifierAES::encryptedVerifier, msfilter::EncryptionVerifierAES::encryptedVerifierHash, msfilter::StandardEncryptionInfo::header, msfilter::EncryptionStandardHeader::keyBits, mInfo, oox::crypto::CryptoEngine::mKey, comphelper::SHA1, comphelper::SHA256_HASH_LENGTH, and msfilter::StandardEncryptionInfo::verifier.

◆ generateVerifier()

bool oox::crypto::Standard2007Engine::generateVerifier ( )

private

Definition at line 40 of file Standard2007Engine.cxx.

References oox::crypto::Crypto::AES_128_ECB, comphelper::Hash::calculateHash(), msfilter::ENCRYPTED_VERIFIER_LENGTH, msfilter::EncryptionVerifierAES::encryptedVerifier, msfilter::EncryptionVerifierAES::encryptedVerifierHash, msfilter::EncryptionVerifierAES::encryptedVerifierHashSize, mInfo, oox::crypto::CryptoEngine::mKey, comphelper::SHA1, comphelper::SHA1_HASH_LENGTH, comphelper::SHA256_HASH_LENGTH, oox::crypto::Encrypt::update(), and msfilter::StandardEncryptionInfo::verifier.

Referenced by setupEncryption().

◆ readEncryptionInfo()

bool oox::crypto::Standard2007Engine::readEncryptionInfo ( css::uno::Reference< css::io::XInputStream > & rxInputStream )

overridevirtual

Implements oox::crypto::CryptoEngine.

Definition at line 275 of file Standard2007Engine.cxx.

References msfilter::EncryptionStandardHeader::algId, msfilter::EncryptionStandardHeader::algIdHash, msfilter::ENCRYPT_ALGO_AES128, msfilter::ENCRYPT_HASH_SHA1, msfilter::EncryptionVerifierAES::encryptedVerifier, msfilter::EncryptionVerifierAES::encryptedVerifierHash, msfilter::EncryptionVerifierAES::encryptedVerifierHashSize, msfilter::ENCRYPTINFO_AES, msfilter::ENCRYPTINFO_CRYPTOAPI, msfilter::ENCRYPTINFO_EXTERNAL, msfilter::EncryptionStandardHeader::flags, oox::getFlag(), msfilter::StandardEncryptionInfo::header, oox::BinaryStreamBase::isEof(), msfilter::EncryptionStandardHeader::keyBits, mInfo, msfilter::EncryptionStandardHeader::providedType, oox::BinaryInputStream::readArray(), oox::BinaryInputStream::readuInt32(), msfilter::EncryptionStandardHeader::reserved1, msfilter::EncryptionStandardHeader::reserved2, SAL_N_ELEMENTS, msfilter::EncryptionVerifierAES::salt, msfilter::EncryptionVerifierAES::saltSize, msfilter::EncryptionStandardHeader::sizeExtra, oox::BinaryXInputStream::skip(), and msfilter::StandardEncryptionInfo::verifier.

◆ setupEncryption()

bool oox::crypto::Standard2007Engine::setupEncryption ( OUString const & rPassword )

overridevirtual

◆ writeEncryptionInfo()

void oox::crypto::Standard2007Engine::writeEncryptionInfo ( BinaryXOutputStream & rStream )

overridevirtual

Implements oox::crypto::CryptoEngine.

Definition at line 212 of file Standard2007Engine.cxx.

References msfilter::EncryptionStandardHeader::algId, msfilter::EncryptionStandardHeader::algIdHash, msfilter::EncryptionVerifierAES::encryptedVerifier, msfilter::EncryptionVerifierAES::encryptedVerifierHash, msfilter::EncryptionVerifierAES::encryptedVerifierHashSize, msfilter::EncryptionStandardHeader::flags, msfilter::StandardEncryptionInfo::header, msfilter::EncryptionStandardHeader::keyBits, mInfo, msfilter::EncryptionStandardHeader::providedType, msfilter::EncryptionStandardHeader::reserved1, msfilter::EncryptionStandardHeader::reserved2, msfilter::EncryptionVerifierAES::salt, msfilter::EncryptionVerifierAES::saltSize, msfilter::EncryptionStandardHeader::sizeExtra, msfilter::StandardEncryptionInfo::verifier, msfilter::VERSION_INFO_2007_FORMAT, oox::BinaryXOutputStream::writeMemory(), oox::BinaryOutputStream::WriteUInt16(), oox::BinaryOutputStream::WriteUInt32(), and oox::BinaryOutputStream::writeUnicodeArray().

Member Data Documentation

◆ mInfo

msfilter::StandardEncryptionInfo oox::crypto::Standard2007Engine::mInfo

private

Definition at line 29 of file Standard2007Engine.hxx.

Referenced by calculateEncryptionKey(), generateEncryptionKey(), generateVerifier(), readEncryptionInfo(), setupEncryption(), and writeEncryptionInfo().

The documentation for this class was generated from the following files: