cpgpkeyjoiner.cpp

PGP8.0源码 请认真阅读您的文件包然后写出其具体功能

/*____________________________________________________________________________
		Copyright (C) 2002 PGP Corporation
        All rights reserved.

        $Id: CPGPKeyJoiner.cpp,v 1.4 2002/08/06 20:09:23 dallen Exp $
____________________________________________________________________________*/

#include "pgpClassesConfig.h"

#include "CArray.h"
#include "CSecureString.h"

#include "pgpClientLib.h"
#include "CPGPContext.h"
#include "CPGPData.h"
#include "CPGPdiskEngine.h"
#include "CPGPKeyDB.h"
#include "CPGPtlsContext.h"
#include "UCommonStrings.h"

#include "CPGPKeyJoiner.h"
#include "CPGPKeyPicker.h"

_USING_PGP

// Class CPGPKeyJoiner public member functions

void 
CPGPKeyJoiner::AskForJoinedKey(
	const CPGPdiskContext&	context, 
	HWND					parentWnd, 
	const CPGPKeySet&		splitKeys, 
	CPGPKey&				splitKey, 
	CSecureString&			secPassphrase,
	PGPByte					**ppPassphrase,
	PGPUInt32				*plength)
{
	pgpAssert(IsWindow(parentWnd));

	CPGPContext	pgpContext(context.PGPContext());
	CPGPKeyList	splitKeysList(splitKeys, kPGPKeyOrdering_Any);
	CPGPKeyIter	splitKeysIter(splitKeysList);

	if (splitKeys.Count() > 1)
	{
		using namespace UCommonStrings;

		// Ask user to choose from split keys.
		CPGPKeyPicker	keyPickerDlg;
		CPGPKeySet		pickedKeys;
		
		pickedKeys.CreateEmpty(splitKeys.KeyDB());

		keyPickerDlg.Display(context, parentWnd, Get(kKeyJoinerDialogTitle), 
			Get(kKeyJoinerDialogMessage), splitKeys, pickedKeys, TRUE);

		// Return picked key.
		pgpAssert(pickedKeys.Count() == 1);

		CPGPKeyList	pickedKeysList(pickedKeys, kPGPKeyOrdering_Any);
		CPGPKeyIter	pickedKeysIter(pickedKeysList);

		pickedKeysIter.Next(splitKey);
	}
	else if (splitKeys.Count() == 1)
	{
		splitKeysIter.Next(splitKey);
	}
	else
	{
		THROW_PGPERROR(kPGPError_BadParams);
	}

	pgpAssert(splitKey.GetBooleanProp(kPGPKeyProperty_IsSecretShared));

	// Ask to join key.
	CPGPKeySet		pgpKeys(context.PGPKeyDB());
	CPGPtlsContext	tlsContext(pgpContext);

//	PGPByte		*pPassphrase;
//	PGPUInt32	length;

	PGPError	pgpErr	= PGPclReconstituteKey(pgpContext, tlsContext, 
		parentWnd, pgpKeys.KeyDB(), splitKey, ppPassphrase, plength);
	THROW_IF_PGPERROR(pgpErr);

//	CPGPData	passphrase(pPassphrase, length, TRUE);
//	secPassphrase.Assign(static_cast<const char *>(passphrase.Get()));
}