class SHA256

A standard SHA256 digest calculator. More...

Full nameTelEngine::SHA256
Definition#include <yateclass.h>
InheritsTelEngine::Hasher [public ]
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Detailed Description

A class to compute and check SHA256 digests

 SHA256 ()

SHA256

Construct a fresh initialized instance

 SHA256 (const SHA256& original)

SHA256

Copy constructor

Parameters:
originalSHA256 instance to copy

 SHA256 (const void* buf, unsigned int len)

SHA256

Construct a digest from a buffer of data

Parameters:
bufPointer to the data to be included in digest
lenLength of data in the buffer

 SHA256 (const DataBlock& data)

SHA256

Construct a digest from a binary DataBlock

Parameters:
dataBinary data to be included in digest

 SHA256 (const String& str)

SHA256

Construct a digest from a String

Parameters:
strString to be included in digest

SHA256&  operator= (const SHA256& original)

operator=

Assignment operator.

 ~SHA256 ()

~SHA256

[virtual]

Destroy the instance, free allocated memory

void  clear ()

clear

[virtual]

Clear the digest and prepare for reuse

Reimplemented from Hasher.

void  finalize ()

finalize

[virtual]

Finalize the digest computation, make result ready. Subsequent calls to update() will fail

Reimplemented from Hasher.

const unsigned char*  rawDigest ()

rawDigest

[virtual]

Returns a pointer to the raw 32-byte binary value of the message digest. The digest is finalized if if wasn't already

Returns: Pointer to the raw digest data or NULL if some error occured

Reimplemented from Hasher.

inline unsigned int  rawLength ()

rawLength

[static]

Return the length of the raw binary digest

Returns: Constant value of 32

unsigned int  hashLength ()

hashLength

[const virtual]

Return the length of the raw binary digest

Returns: Length of the digest in octets

Reimplemented from Hasher.

bool  updateInternal (const void* buf, unsigned int len)

updateInternal

[protected]

Reimplemented from Hasher.


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