SiMAC Class Reference

a base class for all classes that implement hash functions. More...

Inheritance diagram for SiMAC:

Public Member Functions
	SiMAC ()
	default constructor
virtual	~SiMAC ()
	destructor
virtual OFCondition	initialize ()=0
	initializes the MAC algorithm. More...
virtual OFCondition	digest (const unsigned char *data, unsigned long length)=0
	feeds data into the MAC algorithm More...
virtual OFCondition	finalize (unsigned char *result)=0
	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 =0
	returns the size of a MAC in bytes. More...
virtual E_MACType	macType () const =0
	returns the type of MAC algorithm computed by this object More...
virtual const char *	getDefinedTerm () const =0
	returns the DICOM identifier for this MAC algorithm More...

Detailed Description

a base class for all classes that implement hash functions.

Member Function Documentation

digest()

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

pure 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

Implemented in SiMD5, SiRIPEMD160, SiSHA1, SiSHA256, SiSHA384, and SiSHA512.

finalize()

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

pure 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

Implemented in SiMD5, SiRIPEMD160, SiSHA1, SiSHA256, SiSHA384, and SiSHA512.

getDefinedTerm()

virtual const char* SiMAC::getDefinedTerm ( ) const

pure virtual

returns the DICOM identifier for this MAC algorithm

Returns

DICOM defined term for algorithm

Implemented in SiMD5, SiRIPEMD160, SiSHA1, SiSHA256, SiSHA384, and SiSHA512.

getSize()

virtual unsigned long SiMAC::getSize ( ) const

pure virtual

returns the size of a MAC in bytes.

Returns

block size for this MAC algorithm

Implemented in SiMD5, SiRIPEMD160, SiSHA1, SiSHA256, SiSHA384, and SiSHA512.

initialize()

virtual OFCondition SiMAC::initialize ( )

pure virtual

initializes the MAC algorithm.

Returns

status code

Implemented in SiMD5, SiRIPEMD160, SiSHA1, SiSHA256, SiSHA384, and SiSHA512.

macType()

virtual E_MACType SiMAC::macType ( ) const

pure virtual

returns the type of MAC algorithm computed by this object

Returns

type of MAC algorithm

Implemented in SiMD5, SiRIPEMD160, SiSHA1, SiSHA256, SiSHA384, and SiSHA512.

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

• dcmsign/include/dcmtk/dcmsign/simac.h