SiMDMAC Class Reference

a class implementing all supported hash functions using the OpenSSL EVP_MD high level API. More...

Inheritance diagram for SiMDMAC:

Public Member Functions
	SiMDMAC (E_MACType mactype)
	default constructor
virtual	~SiMDMAC ()
	destructor
virtual OFCondition	initialize ()
	initializes the MAC algorithm. More...
virtual OFCondition	digest (const unsigned char *data, unsigned long length)
	feeds data into the MAC algorithm More...
virtual OFCondition	finalize (unsigned char *result)
	finalizes the MAC and writes it to the given output array, which must be at least getSize() bytes large. More...
virtual unsigned long	getSize () const
	returns the size of a MAC in bytes. More...
virtual E_MACType	macType () const
	returns the type of MAC algorithm computed by this object More...
virtual const char *	getDefinedTerm () const
	returns the DICOM identifier for this MAC algorithm More...
Public Member Functions inherited from SiMAC
	SiMAC ()
	default constructor
virtual	~SiMAC ()
	destructor

Private Member Functions
	SiMDMAC (SiMDMAC &arg)
	private undefined copy constructor
SiMDMAC &	operator= (SiMDMAC &arg)
	private undefined copy assignment operator

Private Attributes
EVP_MD_CTX *	ctx
	OpenSSL MAC context.
E_MACType	macType_
	MAC type.

Detailed Description

a class implementing all supported hash functions using the OpenSSL EVP_MD high level API.

Remarks

this class is only available if DCMTK is compiled with OpenSSL support enabled.

Member Function Documentation

digest()

virtual OFCondition SiMDMAC::digest ( const unsigned char *  data, unsigned long  length  )

virtual

feeds data into the MAC algorithm

Parameters

data	pointer to raw data to be fed into the MAC, must not be NULL
length	number of bytes in raw data array

Returns

status code

Implements SiMAC.

finalize()

virtual OFCondition SiMDMAC::finalize ( unsigned char *  result )

virtual

finalizes the MAC and writes it to the given output array, which must be at least getSize() bytes large.

After a call to finalize, the MAC algorithm must be initialized again, see initialize().

Parameters

result

pointer to array of getSize() bytes into which the MAC is written

Returns

status code

Implements SiMAC.

getDefinedTerm()

virtual const char* SiMDMAC::getDefinedTerm ( ) const

virtual

returns the DICOM identifier for this MAC algorithm

Returns

DICOM defined term for algorithm

Implements SiMAC.

getSize()

virtual unsigned long SiMDMAC::getSize ( ) const

virtual

returns the size of a MAC in bytes.

Returns

block size for this MAC algorithm

Implements SiMAC.

initialize()

virtual OFCondition SiMDMAC::initialize ( )

virtual

initializes the MAC algorithm.

Returns

status code

Implements SiMAC.

macType()

virtual E_MACType SiMDMAC::macType ( ) const

virtual

returns the type of MAC algorithm computed by this object

Returns

type of MAC algorithm

Implements SiMAC.

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

• dcmsign/include/dcmtk/dcmsign/simdmac.h