SHA-512 hash algorithm. More...

#include <SHA512.h>

Inheritance diagram for SHA512:

Public Member Functions
	SHA512 ()
	Constructs a SHA-512 hash object.

virtual	~SHA512 ()
	Destroys this SHA-512 hash object after clearing sensitive information.

size_t	hashSize () const
	Size of the hash result from finalize(). More...

size_t	blockSize () const
	Size of the internal block used by the hash algorithm. More...

void	reset ()
	Resets the hash ready for a new hashing process. More...

void	update (const void *data, size_t len)
	Updates the hash with more data. More...

void	finalize (void *hash, size_t len)
	Finalizes the hashing process and returns the hash. More...

void	clear ()
	Clears the hash state, removing all sensitive data, and then resets the hash ready for a new hashing process. More...

Public Member Functions inherited from Hash
	Hash ()
	Constructs a new hash object.

virtual	~Hash ()
	Destroys this hash object. More...

Detailed Description

SHA-512 hash algorithm.

Reference: http://en.wikipedia.org/wiki/SHA-2

See Also: SHA256, SHA1

Definition at line 28 of file SHA512.h.

Member Function Documentation

size_t SHA512::blockSize ( ) const

virtual

Size of the internal block used by the hash algorithm.

See Also: update(), hashSize()

Implements Hash.

Definition at line 61 of file SHA512.cpp.

void SHA512::clear ( )

virtual

Clears the hash state, removing all sensitive data, and then resets the hash ready for a new hashing process.

See Also: reset()

Implements Hash.

Definition at line 145 of file SHA512.cpp.

void SHA512::finalize	(	void *	hash,
		size_t	len
	)

virtual

Finalizes the hashing process and returns the hash.

Parameters

hash	The buffer to return the hash value in.
len	The length of the hash buffer, normally hashSize().

If len is less than hashSize(), then the hash value will be truncated to the first len bytes. If len is greater than hashSize(), then the remaining bytes will left unchanged.

If finalize() is called again, the same hash value is returned again until the next call to reset() or update().