CSHA2 Class Reference

class CSHA2 : public CMessageDigest

A SHA-2 message digest

SHA-2 comprises of SHA-224, SHA256, SHA384 and SHA512

Inherits from

Constructor & Destructor Documentation

~CSHA2(void)

IMPORT_C~CSHA2(void)

Destructor

Parameters

void

Member Functions Documentation

BlockSize(void)

IMPORT_C TIntBlockSize(void)[virtual]

Gets the internal block size of the message digest.

Parameters

void

ConstructL(TSH2Algo)

voidConstructL(TSH2AlgoaAlgorithmId)[private]

Parameters

TSH2Algo aAlgorithmId

ConstructL(const CSHA2 &)

voidConstructL(const CSHA2 &aSHA512)[private]

Parameters

const CSHA2 & aSHA512

CopyL(void)

IMPORT_C CMessageDigest *CopyL(void)[virtual]

Creates a new CMessageDigest object with the exact same state as the current object.

This function copies all internal state of the message digest. To create a new CMessageDigest object without the state of the current object, see ReplicateL().

Parameters

void

Final(const TDesC8 &)

IMPORT_C TPtrC8Final(const TDesC8 &aMessage)[virtual]

Adds aMessage to the internal representation of data to be hashed, returns a TPtrC8 of the finalised hash of all the previously appended messages, and calls Reset().

Since
v8.0

Parameters

const TDesC8 & aMessageData to be included in the hash

Final()

IMPORT_C TPtrC8Final()[virtual]

Gets a TPtrC8 of the finalised hash of all the previously appended messages and then calls Reset().

Since
v8.0

Hash(const TDesC8 &)

IMPORT_C TPtrC8Hash(const TDesC8 &aMessage)[virtual]

Adds aMessage to the internal representation of data to be hashed, then returns a TPtrC8 of the finalised hash of all the previously appended messages.

Parameters

const TDesC8 & aMessageData to be included in the hash.

HashSize(void)

IMPORT_C TIntHashSize(void)[virtual]

Gets the size of the message digest output.

Parameters

void

NewL(TSH2Algo)

IMPORT_C CSHA2 *NewL(TSH2AlgoaAlgorithmId)[static]

Parameters

TSH2Algo aAlgorithmId

NewLC(TSH2Algo)

IMPORT_C CSHA2 *NewLC(TSH2AlgoaAlgorithmId)[static]

Parameters

TSH2Algo aAlgorithmId

ReplicateL(void)

IMPORT_C CMessageDigest *ReplicateL(void)[virtual]

Creates a brand new reset CMessageDigest object containing no state information from the current object.

To make a copy of a message digest with its internal state intact, see CopyL().

Parameters

void

Reset(void)

IMPORT_C voidReset(void)[virtual]

Resets the internal state of the message digest.

A reset hash object loses all internal state representing the hashed data. A reset message digest is suitable to begin a new, distinct hash of different data. Any previously returned TPtrC8 from a call to Final() remains valid until any subsequent call to Update() or Final().

Parameters

void

RestoreState()

voidRestoreState()[virtual]

Restores the internal state of the message digest to a previously stored state.

StoreState()

StoreState()

voidStoreState()[virtual]

Stores the internal state of the message digest.

Update(const TDesC8 &)

IMPORT_C voidUpdate(const TDesC8 &aMessage)[virtual]

Adds data to the internal representation of messages to be hashed.

Since
v8.0

Parameters

const TDesC8 & aMessageData to be included in the hash.

Member Data Documentation

TSH2Algo iAlgorithmType

TSH2Algo iAlgorithmType[private]

TUint iHashSize

TUint iHashSize[private]

MSHA2Impl * iImplementation

MSHA2Impl *iImplementation[private]

const TAny * iInitValues

const TAny *iInitValues[private]