SHA256 Class Reference

SHA-256 secure hash generator. More...

Public Member Functions
	SHA256 () noexcept
	Creates an empty SHA256 object. More...
	~SHA256 () noexcept
	Destructor. More...
	SHA256 (const SHA256 &other) noexcept
	Creates a copy of another SHA256. More...
SHA256 &	operator= (const SHA256 &other) noexcept
	Copies another SHA256. More...
	SHA256 (const MemoryBlock &data)
	Creates a hash from a block of raw data. More...
	SHA256 (const void *data, size_t numBytes)
	Creates a hash from a block of raw data. More...
	SHA256 (InputStream &input, int64 maxBytesToRead=-1)
	Creates a hash from the contents of a stream. More...
	SHA256 (const File &file)
	Reads a file and generates the hash of its contents. More...
	SHA256 (CharPointer_UTF8 utf8Text) noexcept
	Creates a checksum from a UTF-8 buffer. More...
MemoryBlock	getRawData () const
	Returns the hash as a 32-byte block of data. More...
String	toHexString () const
	Returns the checksum as a 64-digit hex string. More...
bool	operator== (const SHA256 &) const noexcept
bool	operator!= (const SHA256 &) const noexcept

Detailed Description

SHA-256 secure hash generator.

Create one of these objects from a block of source data or a stream, and it calculates the SHA-256 hash of that data.

You can retrieve the hash as a raw 32-byte block, or as a 64-digit hex string.

See also

MD5

Constructor & Destructor Documentation

SHA256::SHA256 ( )

noexcept

Creates an empty SHA256 object.

The default constructor just creates a hash filled with zeros. (This is not equal to the hash of an empty block of data).

SHA256::~SHA256 ( )

noexcept

Destructor.

SHA256::SHA256 ( const SHA256 &  other )

noexcept

Creates a copy of another SHA256.

SHA256::SHA256 ( const MemoryBlock &  data )

explicit

Creates a hash from a block of raw data.

SHA256::SHA256	(	const void *	data,
		size_t	numBytes
	)

Creates a hash from a block of raw data.

SHA256::SHA256	(	InputStream &	input,
		int64	maxBytesToRead = -1
	)

Creates a hash from the contents of a stream.

This will read from the stream until the stream is exhausted, or until maxBytesToRead bytes have been read. If maxBytesToRead is negative, the entire stream will be read.

SHA256::SHA256 ( const File &  file )

explicit

Reads a file and generates the hash of its contents.

If the file can't be opened, the hash will be left uninitialised (i.e. full of zeros).

SHA256::SHA256 ( CharPointer_UTF8  utf8Text )

explicitnoexcept

Creates a checksum from a UTF-8 buffer.

E.g.

SHA256 checksum (myString.toUTF8());

Member Function Documentation

SHA256& SHA256::operator= ( const SHA256 &  other )

noexcept

Copies another SHA256.

MemoryBlock SHA256::getRawData

(

)

const

Returns the hash as a 32-byte block of data.

String SHA256::toHexString

(

)

const

Returns the checksum as a 64-digit hex string.

bool SHA256::operator== ( const SHA256 &  ) const

noexcept

bool SHA256::operator!= ( const SHA256 &  ) const

noexcept

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

• juce_SHA256.h