OFSHA256 Class Reference

Public Member Functions
	OFSHA256 ()
	default constructor
void	init ()
	initialize instance, i.e. reset to initial state
void	update (const void *data, size_t len)
	feed bytes to the hash algorithm
void	final (void *hash)
	finalize and return hash

Private Member Functions
void	transform ()
	transform hash key state based on the content of the data buffer

Private Attributes
Uint8	data_ [64]
	data buffer
Uint32	datalen_
	number of bytes in data buffer
unsigned long long	bitlen_
	total number of bits that have been fed into the hash algorithm
Uint32	state_ [8]
	state information for the hash key

Member Function Documentation

final()

void OFSHA256::final

(

void *

hash

)

finalize and return hash

Parameters

hash	pointer to memory block of at least 32 bytes. The SHA-256 hash is copied into this block.

update()

void OFSHA256::update	(	const void *	data,
		size_t	len )

feed bytes to the hash algorithm

Parameters

data	bytes to feed
len	number of bytes

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

• ofstd/include/dcmtk/ofstd/ofsha256.h