Exporting a Public Key

Example

The following code snippet shows how to set a file system session object, list the keys in the keystore and then export the selected public key.

//Create a file system session object
RFs iFs;
CleanupClosePushL(&iFs);


//Initialise the keystore and member functions
CUnifiedKeyStore* keyStore = CUnifiedKeyStore::NewL(iFs);
keyStore->Initialize(iStatus); //iStatus is a TRequestStatus object


//List the keys of the keystore
RPointerArray<CCTKeyInfo> iKeys; // This variable will contain the result after the completion of the export operation
TCTKeyAttributeFilter  filter.iUsage = EPKCS15UsageAll;
keyStore->List(iKeys, filter, iStatus);

...


//Retrieve the handle of the public key to be exported
_LIT(KLabel,”keylabel”);


//Select the key with the label you are looking for
TInt keyIndex;
for (TInt j = 0; j < iKeys.Count(); j++)
    {
    if (iKeys[j]->Label() == KLabel) 
        {
         keyIndex = j;
         break;
        }
    }


...


//Export the key 
HBufC8* iKeyData = NULL;
TCTTokenObjectHandle aHandle = iKeys[keyIndex]->Handle();
keyStore->ExportPublic(aHandle, iKeyData, iStatus);


//Clean up
CleanupStack::PopAndDestroy(); // iFs