Stream implementation that wraps existing stream with a cryptographic function. Objects of this class should only be allocated using System::MakeObject() function. Never create instance of this type on stack or using operator new, as it will result in runtime errors and/or assertion faults. Always wrap this class into System::SmartPtr pointer and use this pointer to pass it to functions as argument. More...

Inherits System::IO::Stream.

Public Member Functions
	CryptoStream (const SharedPtr< System::IO::Stream > &stream, const SharedPtr< ICryptoTransform > &transform, CryptoStreamMode mode)
	Constructor. More...

int	Read (ArrayPtr< uint8_t > buffer, int offset, int count) override
	Reads data from stream. More...

void	Write (ArrayPtr< uint8_t > buffer, int offset, int count) override
	Writes data to stream. More...

void	Close () override
	Closes connection. More...

int64_t	Seek (int64_t offset, IO::SeekOrigin origin) override
	Seeks position in stream. Not supported. More...

void	SetLength (int64_t value) override
	Seeks size of stream. Not supported. More...

void	Flush () override
	Empties buffer into wrapped stream. Does nothing as transform algorithm can be still waiting for more data. More...

void	FlushFinalBlock ()
	Writes the data which is still in the buffer to stream. More...

void	set_Position (int64_t value) override
	Seeks position in stream. Not supported. More...

int64_t	get_Position () const override
	Gets current position in stream. Not supported. More...

int64_t	get_Length () const override
	Gets length of stream. Not supported. More...

bool	get_CanRead () const override
	Checks if stream is readable. More...

bool	get_CanSeek () const override
	Checks if stream is seekable. More...

bool	get_CanWrite () const override
	Checks if stream is writable. More...

Public Member Functions inherited from System::IO::Stream
virtual int	ReadByte ()
	Reads a single byte from the stream and returns a 32-bit integer value equivalent to the value of the read byte. More...

virtual void	WriteByte (uint8_t value)
	Writes the specified unsigned 8-bit integer value to the stream. More...

void	Dispose () override
	Releases all resources used by the current object and closes the stream. More...

virtual System::SharedPtr< System::IAsyncResult >	BeginRead (System::ArrayPtr< uint8_t > buffer, int offset, int count, System::AsyncCallback callback, System::SharedPtr< System::Object > state)
	Initiates an asynchronous read operation. More...

virtual System::SharedPtr< System::IAsyncResult >	BeginWrite (System::ArrayPtr< uint8_t > buffer, int offset, int count, System::AsyncCallback callback, System::SharedPtr< System::Object > state)
	Initiates an asynchronous write operation. More...

virtual int	EndRead (System::SharedPtr< System::IAsyncResult > asyncResult)
	Waits until the specified asynchronous read operation completes. More...

virtual void	EndWrite (System::SharedPtr< System::IAsyncResult > asyncResult)
	Ends an asynchronous write operation. Waits until the specified asynchronous write operation completes. More...

void	CopyTo (const SharedPtr< Stream > &destination)
	Copies bytes to the specified stream. More...

void	CopyTo (const SharedPtr< Stream > &destination, int32_t buffer_size)
	Copies bytes to the specified stream, using the specified buffer size. More...

virtual bool	get_CanTimeout () const
	Gets a value that determines whether the current stream can time out. More...

virtual void	set_ReadTimeout (int timeout)
	Sets a value that determines whether the current stream can time out. More...

virtual int	get_ReadTimeout () const
	Gets a value, in milliseconds, that determines how long the stream will attempt to read before timing out. More...

virtual void	set_WriteTimeout (int timeout)
	Sets a value, in milliseconds, that determines how long the stream will attempt to read before timing out. More...

virtual int	get_WriteTimeout () const
	Gets a value, in milliseconds, that determines how long the stream will attempt to write before timing out. More...

Public Member Functions inherited from System::Object
	Object ()
	Creates object. Initializes all internal data structures. More...

virtual	~Object ()
	Destroys object. Frees all internal data structures. More...

	Object (Object const &x)
	Copy constructor. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...

Object &	operator= (Object const &x)
	Assignment operator. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...

Object *	SharedRefAdded ()
	Increments shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...

int	SharedRefRemovedSafe ()
	Decrements and returns shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...

int	RemovedSharedRefs (int count)
	Decreases shared reference count by specified value. More...

Detail::SmartPtrCounter *	WeakRefAdded ()
	Increments weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...

void	WeakRefRemoved ()
	Decrements weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...

Detail::SmartPtrCounter *	GetCounter ()
	Gets reference counter data structure associated with the object. More...

int	SharedCount () const
	Gets current value of shared reference counter. More...

void	Lock ()
	Implements C# lock() statement locking. Call directly or use LockContext sentry object. More...

void	Unlock ()
	Implements C# lock() statement unlocking. Call directly or use LockContext sentry object. More...

virtual bool	Equals (ptr obj)
	Compares objects using C# Object.Equals semantics. More...

virtual int32_t	GetHashCode () const
	Analog of C# Object.GetHashCode() method. Enables hashing of custom objects. More...

virtual String	ToString () const
	Analog of C# Object.ToString() method. Enables converting custom objects to string. More...

virtual ptr	MemberwiseClone () const
	Analog of C# Object.MemberwiseClone() method. Enables cloning custom types. More...

virtual const TypeInfo &	GetType () const
	Gets actual type of object. Analog of C# System.Object.GetType() call. More...

virtual bool	Is (const TypeInfo &targetType) const
	Check if object represents an instance of type described by targetType. Analog of C# 'is' operator. More...

virtual void	SetTemplateWeakPtr (uint32_t argument)
	Set n'th template argument a weak pointer (rather than shared). Allows switching pointers in containers to weak mode. More...

virtual bool	FastCast (const Details::FastRttiBase &helper, void **out_ptr) const
	For internal purposes only. More...

template<>
bool	ReferenceEquals (String const &str, std::nullptr_t)
	Specialization of Object::ReferenceEquals for case of string and nullptr. More...

template<>
bool	ReferenceEquals (String const &str1, String const &str2)
	Specialization of Object::ReferenceEquals for case of strings. More...

Additional Inherited Members
Public Types inherited from System::IO::Stream
typedef SharedPtr< Stream >	Ptr
	An alias for a shared pointer to this class. More...

Public Types inherited from System::Object
typedef SmartPtr< Object >	ptr
	Alias for smart pointer type. More...

Static Public Member Functions inherited from System::Object
static bool	ReferenceEquals (ptr const &objA, ptr const &objB)
	Compares objects by reference. More...

template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type	ReferenceEquals (T const &objA, T const &objB)
	Compares objects by reference. More...

template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type	ReferenceEquals (T const &objA, std::nullptr_t)
	Reference-compares value type object with nullptr. More...

template<typename T1 , typename T2 >
static std::enable_if< IsSmartPtr< T1 >::value &&IsSmartPtr< T2 >::value, bool >::type	Equals (T1 const &objA, T2 const &objB)
	Compares reference type objects in C# style. More...

template<typename T1 , typename T2 >
static std::enable_if<!IsSmartPtr< T1 >::value &&!IsSmartPtr< T2 >::value, bool >::type	Equals (T1 const &objA, T2 const &objB)
	Compares value type objects in C# style. More...

static const TypeInfo &	Type ()
	Implements C# typeof(System.Object) construct. More...

template<>
bool	Equals (float const &objA, float const &objB)
	Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. More...

template<>
bool	Equals (double const &objA, double const &objB)
	Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. More...

Static Public Attributes inherited from System::IO::Stream
static const System::SharedPtr< Stream >	Null
	A stream with no underlying storage. More...

Protected Member Functions inherited from System::IO::Stream
virtual void	Dispose (bool disposing)
	Releases all resources used by the current object and closes the stream. More...

virtual int32_t	ReadImpl (const ArrayPtr< uint8_t > &buffer, int32_t offset, int32_t count)
	Reads the specified number of bytes from the stream and writes them to the specified buffer. More...

Detailed Description

Stream implementation that wraps existing stream with a cryptographic function. Objects of this class should only be allocated using System::MakeObject() function. Never create instance of this type on stack or using operator new, as it will result in runtime errors and/or assertion faults. Always wrap this class into System::SmartPtr pointer and use this pointer to pass it to functions as argument.

Constructor & Destructor Documentation

◆ CryptoStream()

System::Security::Cryptography::CryptoStream::CryptoStream	(	const SharedPtr< System::IO::Stream > &	stream,
		const SharedPtr< ICryptoTransform > &	transform,
		CryptoStreamMode	mode
	)

Constructor.

Parameters

stream	Stream to wrap.
transform	Transformation function to process data with when sending/reading it to/from stream.
mode	Stream direction.

Member Function Documentation

◆ Close()

void System::Security::Cryptography::CryptoStream::Close ( )

overridevirtual

Closes connection.

Reimplemented from System::IO::Stream.

◆ Flush()

void System::Security::Cryptography::CryptoStream::Flush ( )

overridevirtual

Empties buffer into wrapped stream. Does nothing as transform algorithm can be still waiting for more data.

Implements System::IO::Stream.

◆ FlushFinalBlock()

void System::Security::Cryptography::CryptoStream::FlushFinalBlock ( )

Writes the data which is still in the buffer to stream.

◆ get_CanRead()

bool System::Security::Cryptography::CryptoStream::get_CanRead ( ) const

overridevirtual

Checks if stream is readable.

Returns: True if stream was created with CryptoStreamMode::Read, false otherwise.

Implements System::IO::Stream.

◆ get_CanSeek()

bool System::Security::Cryptography::CryptoStream::get_CanSeek ( ) const

overridevirtual

Checks if stream is seekable.

Returns: Always returns false.

Implements System::IO::Stream.

◆ get_CanWrite()

bool System::Security::Cryptography::CryptoStream::get_CanWrite ( ) const

overridevirtual

Checks if stream is writable.

Returns: True if stream was created with CryptoStreamMode::Write, false otherwise.

Implements System::IO::Stream.

◆ get_Length()

int64_t System::Security::Cryptography::CryptoStream::get_Length ( ) const

overridevirtual

Gets length of stream. Not supported.

Exceptions

NotSupportedException Unconditionally as operation is not supported.

Implements System::IO::Stream.

◆ get_Position()

int64_t System::Security::Cryptography::CryptoStream::get_Position ( ) const

overridevirtual

Gets current position in stream. Not supported.

Exceptions

NotSupportedException Unconditionally as operation is not supported.

Implements System::IO::Stream.

◆ Read()

int System::Security::Cryptography::CryptoStream::Read	(	ArrayPtr< uint8_t >	buffer,
		int	offset,
		int	count
	)

overridevirtual

Reads data from stream.

Parameters

buffer	Destination data buffer.
offset	Offset in destination buffer.
count	Number of bytes to read.

Returns: Number of bytes being read actually.

Implements System::IO::Stream.

◆ Seek()

int64_t System::Security::Cryptography::CryptoStream::Seek	(	int64_t	offset,
		IO::SeekOrigin	origin
	)

overridevirtual

Seeks position in stream. Not supported.

Exceptions

NotSupportedException Unconditionally as operation is not supported.

Implements System::IO::Stream.

◆ set_Position()

void System::Security::Cryptography::CryptoStream::set_Position ( int64_t value )

overridevirtual

Seeks position in stream. Not supported.

Exceptions

NotSupportedException Unconditionally as operation is not supported.

Implements System::IO::Stream.

◆ SetLength()

void System::Security::Cryptography::CryptoStream::SetLength ( int64_t value )

overridevirtual

Seeks size of stream. Not supported.

Exceptions

NotSupportedException Unconditionally as operation is not supported.

Implements System::IO::Stream.

◆ Write()

void System::Security::Cryptography::CryptoStream::Write	(	ArrayPtr< uint8_t >	buffer,
		int	offset,
		int	count
	)

overridevirtual

Writes data to stream.

Parameters

buffer	Source data buffer.
offset	Offset in source buffer.
count	Number of bytes to write.

Implements System::IO::Stream.

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ CryptoStream()

Member Function Documentation

◆ Close()

◆ Flush()

◆ FlushFinalBlock()

◆ get_CanRead()

◆ get_CanSeek()

◆ get_CanWrite()

◆ get_Length()

◆ get_Position()

◆ Read()

◆ Seek()

◆ set_Position()

◆ SetLength()

◆ Write()