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CMD5 Class Reference

class CMD5 : public CMessageDigest

An MD5 message digest

Takes a message of arbitrary length as input and produces a 128-bit message digest.

The length of input data should not be longer than 2^32 in bits(2^31 in bytes) which is roughly half a gig.

Inherits from

Public Member Functions
~CMD5 (void)
IMPORT_C TInt BlockSize (void)
IMPORT_C CMessageDigest * CopyL (void)
IMPORT_C TPtrC8 Final (const TDesC8 &)
IMPORT_C TPtrC8 Final ()
IMPORT_C TPtrC8 Hash (const TDesC8 &)
IMPORT_C TInt HashSize (void)
IMPORT_C CMD5 * NewL (void)
IMPORT_C CMessageDigest * ReplicateL (void)
IMPORT_C void Reset (void)
void RestoreState ()
void StoreState ()
IMPORT_C void Update (const TDesC8 &)
Private Member Functions
CMD5 (void)
CMD5 (const CMD5 &)
void Block ()
void DoFinal (void)
void DoUpdate (const TUint8 *, TUint )
Inherited Functions
CBase::CBase()
CBase::Delete(CBase *)
CBase::Extension_(TUint,TAny *&,TAny *)
CBase::operator new(TUint)
CBase::operator new(TUint,TAny *)
CBase::operator new(TUint,TLeave)
CBase::operator new(TUint,TLeave,TUint)
CBase::operator new(TUint,TUint)
CBase::~CBase()
CMessageDigest::CMessageDigest(const CMessageDigest &)
CMessageDigest::CMessageDigest(void)
CMessageDigest::~CMessageDigest(void)
Inherited Enumerations
CMessageDigest:THashId
Private Attributes
TUint iA
TUint iACopy
TUint iB
TUint iBCopy
TUint iC
TUint iCCopy
TUint iD
TUint iDCopy
TUint iData
TUint iDataCopy
TBuf8 < MD5_HASH > iHash
TUint iNh
TUint iNhCopy
TUint iNl
TUint iNlCopy

Constructor & Destructor Documentation

CMD5(void)

CMD5 ( void ) [private]

Parameters

void

CMD5(const CMD5 &)

CMD5 ( const CMD5 & aMD5 ) [private]

Parameters

const CMD5 & aMD5

~CMD5(void)

IMPORT_C ~CMD5 ( void )

Destructor

Parameters

void

Member Functions Documentation

Block()

void Block ( ) [private]

BlockSize(void)

IMPORT_C TInt BlockSize ( void ) [virtual]

Gets the internal block size of the message digest.

Parameters

void

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

DoFinal(void)

void DoFinal ( void ) [private]

Parameters

void

DoUpdate(const TUint8 *, TUint)

void DoUpdate ( const TUint8 * aData,
TUint aLength
) [private]

Parameters

const TUint8 * aData
TUint aLength

Final(const TDesC8 &)

IMPORT_C TPtrC8 Final ( 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 & aMessage Data to be included in the hash

Final()

IMPORT_C TPtrC8 Final ( ) [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 TPtrC8 Hash ( 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 & aMessage Data to be included in the hash.

HashSize(void)

IMPORT_C TInt HashSize ( void ) [virtual]

Gets the size of the message digest output.

Parameters

void

NewL(void)

IMPORT_C CMD5 * NewL ( void ) [static]

Creates a new MD5 object.

Parameters

void

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 void Reset ( 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()

void RestoreState ( ) [virtual]

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

StoreState()

StoreState()

void StoreState ( ) [virtual]

Stores the internal state of the message digest.

Update(const TDesC8 &)

IMPORT_C void Update ( const TDesC8 & aMessage ) [virtual]

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

Since
v8.0

Parameters

const TDesC8 & aMessage Data to be included in the hash.

Member Data Documentation

TUint iA

TUint iA [private]

TUint iACopy

TUint iACopy [private]

TUint iB

TUint iB [private]

TUint iBCopy

TUint iBCopy [private]

TUint iC

TUint iC [private]

TUint iCCopy

TUint iCCopy [private]

TUint iD

TUint iD [private]

TUint iDCopy

TUint iDCopy [private]

TUint iData

TUint iData [private]

TUint iDataCopy

TUint iDataCopy [private]

TBuf8< MD5_HASH > iHash

TBuf8 < MD5_HASH > iHash [private]

TUint iNh

TUint iNh [private]

TUint iNhCopy

TUint iNhCopy [private]

TUint iNl

TUint iNl [private]

TUint iNlCopy

TUint iNlCopy [private]

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All rights reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License v1.0.