C / C++ / MFC Discussion Boards

DodgyG19-Apr-06 4:58

19-Apr-06 4:58

Thanks for the reply Mila.

It does convert automatically but I'm getting errors with in afxwin.h Which, I'll have to admit, I wouldn't feel comfortable altering. I've attached the error below.

Cheers,

Jimmy

error C2259: 'CDocument' : cannot instantiate abstract class
due to following members:
'CDocument::~CDocument(void)' : pure virtual function was not defined
c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\atlmfc\include\afxwin.h(4863) : see declaration of 'CDocument::~CDocument'

Re: MFC Converter

David Crow19-Apr-06 5:22

David Crow

19-Apr-06 5:22

Do you have a CDocument-derived class, and not just an instance of CDocument?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: MFC Converter

DodgyG19-Apr-06 5:27

DodgyG

19-Apr-06 5:27

Hi David,

I do, I've got an SDI app using the doc/view architecture. I've done a bit of googling to try and solve this problem, one of the solutions was to change the doc class from DECLARE_DYNCREATE to DECLARE_DYNAMIC. I've done this but am still running in to the same problems as before.

Cheers,

Jimmy

Re: MFC Converter

David Crow19-Apr-06 5:33

David Crow

19-Apr-06 5:33

DodgyG wrote:
I do...

Does it have a destructor?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: MFC Converter

DodgyG19-Apr-06 5:58

DodgyG

19-Apr-06 5:58

It does

Re: MFC Converter

Mike Dimmick19-Apr-06 5:33

Mike Dimmick

19-Apr-06 5:33

CDocument has changed from MFC 6.0 to 7.x to be an abstract class; you can no longer create an instance of CDocument. You must create your own class derived from CDocument and use that instead.

Stability. What an interesting concept. -- Chris Maunder

Re: MFC Converter

DodgyG19-Apr-06 5:59

DodgyG

19-Apr-06 5:59

Thanks Mike, I'll go do that now.

Re: MFC Converter

Saurabh.Garg19-Apr-06 4:56

Saurabh.Garg

19-Apr-06 4:56

Just open project file in visual studio it will automatically convert it.

-Saurabh

VC++ Encryption using CryptoAPI and Decryption on smartcard

Malacitano19-Apr-06 4:26

Malacitano

19-Apr-06 4:26

I’m developing a Visual C++ application that uses MS CryptoAPI to encrypt a message and then sends encrypted message to a javacard (Cyberflex Access e-gate). The smartcard receives the message, decrypts it and send the decrypted message to Visual C++ application so vc++ application can compare what it receives to the original message and know if smartcard that received encrypted message is that should be because only one can decrypt the message.

I have developed a Java application that emulates Visual C++ application and encryption (off the card) and decryption (on the card) works… so I think that applet on the card is ok.

Moreover, I know that Java works in big endian and Visual C++ in little Indian so bytes have to be inverted. I know that modulus of the public key on card is the following:

0xAC,0x9B,0xFF,0x47,0xCF,0x0B,0x77,0x22,<br />
0x19,0x2A,0xBC,0x23,0x25,0x11,0x8D,0x3A,<br />
0x4C,0xAC,0xB5,0xB1,0x0C,0x50,0x5E,0x5E,<br />
0xC7,0x5E,0xC0,0x66,0xE5,0xA9,0x1B,0x6E,<br />
0xD2,0xE0,0xF7,0xA4,0x11,0x96,0x77,0x86,<br />
0x29,0xC1,0xD9,0xCC,0x30,0xCE,0x85,0x8D,<br />
0x37,0xFE,0x3E,0xFA,0x84,0x8B,0x26,0xB5,<br />
0xA0,0x44,0xCF,0x09,0x66,0x0A,0xCF,0x52,<br />
0xDF,0xBF,0xEE,0x7D,0x49,0xD6,0x5C,0xFE,<br />
0x0B,0x8C,0x16,0x0E,0x3F,0x5D,0xEA,0x23,<br />
0xB4,0x8A,0xDD,0x83,0x88,0x02,0xDC,0x1A,<br />
0xB9,0xED,0xB1,0x7A,0x88,0xFF,0x2F,0x44,<br />
0xDD,0x58,0xE8,0xFA,0x00,0x42,0x60,0x8E,<br />
0x77,0xC7,0x61,0xEA,0xFE,0x0E,0x8D,0xE9,<br />
0xC4,0xDD,0x60,0x3F,0x3C,0x9A,0x78,0x4F,<br />
0x93,0x45,0x2D,0x00,0xEC,0x59,0x04,0x95

I get this using APDU Manager in the Cyberflex Access SDK 4.5… so I have tried with that and with the inverted modulus:

0x95,0x04,0x59,0xEC,0x00,0x2D,0x45,0x93,<br />
0x4F,0x78,0x9A,0x3C,0x3F,0x60,0xDD,0xC4,<br />
0xE9,0x8D,0x0E,0xFE,0xEA,0x61,0xC7,0x77,<br />
0x8E,0x60,0x42,0x00,0xFA,0xE8,0x58,0xDD,<br />
0x44,0x2F,0xFF,0x88,0x7A,0xB1,0xED,0xB9,<br />
0x1A,0xDC,0x02,0x88,0x83,0xDD,0x8A,0xB4,<br />
0x23,0xEA,0x5D,0x3F,0x0E,0x16,0x8C,0x0B,<br />
0xFE,0x5C,0xD6,0x49,0x7D,0xEE,0xBF,0xDF,<br />
0x52,0xCF,0x0A,0x66,0x09,0xCF,0x44,0xA0,<br />
0xB5,0x26,0x8B,0x84,0xFA,0x3E,0xFE,0x37,<br />
0x8D,0x85,0xCE,0x30,0xCC,0xD9,0xC1,0x29,<br />
0x86,0x77,0x96,0x11,0xA4,0xF7,0xE0,0xD2,<br />
0x6E,0x1B,0xA9,0xE5,0x66,0xC0,0x5E,0xC7,<br />
0x5E,0x5E,0x50,0x0C,0xB1,0xB5,0xAC,0x4C,<br />
0x3A,0x8D,0x11,0x25,0x23,0xBC,0x2A,0x19,<br />
0x22,0x77,0x0B,0xCF,0x47,0xFF,0x9B,0xAC

Next, I show what I do to encrypt and send the message to the smartcard.

First of all, I initialise the public key and the message:

<code>BYTE rsaKeyBlob[] = {
	// BLOBHEADER
		0x06,		// PUBLICKEYBLOB
		0x02,		// CUR_BLOB_VERSION
		0x00,0x00,	// reserved
		0x00,0xa4,0x00,0x00, // CALG_RSA_KEYX
	// RSAPUBKEY
		0x52,0x53,0x41,0x31, // "RSA1" (public key)
		0x00,0x04,0x00,0x00, // bitlen = 1024
		0x01,0x00,0x01,0x00, // pubExp = 65537
	// inverted modulus
		0x95,0x04,0x59,0xEC,0x00,0x2D,0x45,0x93,
		0x4F,0x78,0x9A,0x3C,0x3F,0x60,0xDD,0xC4,
		0xE9,0x8D,0x0E,0xFE,0xEA,0x61,0xC7,0x77,
		0x8E,0x60,0x42,0x00,0xFA,0xE8,0x58,0xDD,
		0x44,0x2F,0xFF,0x88,0x7A,0xB1,0xED,0xB9,
		0x1A,0xDC,0x02,0x88,0x83,0xDD,0x8A,0xB4,
		0x23,0xEA,0x5D,0x3F,0x0E,0x16,0x8C,0x0B,
		0xFE,0x5C,0xD6,0x49,0x7D,0xEE,0xBF,0xDF,
		0x52,0xCF,0x0A,0x66,0x09,0xCF,0x44,0xA0,
		0xB5,0x26,0x8B,0x84,0xFA,0x3E,0xFE,0x37,
		0x8D,0x85,0xCE,0x30,0xCC,0xD9,0xC1,0x29,
		0x86,0x77,0x96,0x11,0xA4,0xF7,0xE0,0xD2,
		0x6E,0x1B,0xA9,0xE5,0x66,0xC0,0x5E,0xC7,
		0x5E,0x5E,0x50,0x0C,0xB1,0xB5,0xAC,0x4C,
		0x3A,0x8D,0x11,0x25,0x23,0xBC,0x2A,0x19,
		0x22,0x77,0x0B,0xCF,0x47,0xFF,0x9B,0xAC
    };
BYTE* pbContent; // The message
DWORD cbContent; // Size of message
pbContent = (BYTE*) "Security is our business..."; 
cbContent = strlen((char *)pbContent)+1; 

HCRYPTPROV hProv; // CSP handle
HCRYPTKEY hMyKey;</code>

Now I acquire context:

if(!CryptAcquireContext(
		&hProv, // Address for handle to be returned.
		NULL, // Use the current user's logon name.
		MS_DEF_PROV,
		PROV_RSA_FULL, // Need to both encrypt and sign.
		NULL)) {
	MessageBox("CryptAcquireContext failed.", "Error", MB_OK);
}

Everything seems to be ok because I don’t get error MessageBox so I import public key:

if (CryptImportKey (hProv, rsaKeyBlob, sizeof(rsaKeyBlob), 0,0, &hMyKey))
	{
		// OK so far
		MessageBox("Public key import success.", "OK", MB_OK);
	}
	else
	{
		MessageBox("Public key import failed.", "Error", MB_OK);
		exit(1); // Kaboooommmmmmm!
	}

Once again, it seems to be ok because I get “Public key import success”. So I can start to encrypt the message:

BYTE*    pbEncryptedBlob;
DWORD    cbEncryptedBlob;

CryptEncrypt(hMyKey, 0, TRUE, 0, NULL, &cbEncryptedBlob, cbContent); // we ask size

if(pbEncryptedBlob = (BYTE*)malloc(cbEncryptedBlob))
{
	MessageBox("Memory has been allocated for the encrypted BLOB.", "Info", MB_OK);
	memset(pbEncryptedBlob, '\0', cbEncryptedBlob);
	memcpy(pbEncryptedBlob, pbContent, cbContent); 
}
else
{
	MessageBox("Memory allocation error while encrypting.", "ERROR", MB_OK);
}

if(!CryptEncrypt(hMyKey, NULL, TRUE, NULL, pbEncryptedBlob, &cbContent, cbEncryptedBlob)) {
	MessageBox("CryptEncrypt failed.", "Error", MB_OK);
} else {
	char* EncryptedString = new char[(cbEncryptedBlob * 2) +1];
	ByteToStr(cbEncryptedBlob, pbEncryptedBlob, EncryptedString);
	wsprintf(informacion,"The size of encrypted message is %d bytes.\n%s",cbEncryptedBlob,EncryptedString);
		MessageBox(informacion, "Info", MB_OK);
}

Again, everything seems to be ok because I get “Memory has been allocated for the encrypted BLOB” and “The size of encrypted message is 128 bytes…”
Now I only should have to send it to the card to be decrypted:

// first, connect, select applet,...
try	{
	this->m_sCard = this->m_sIOP.Connect("axalto e-gate 0", false);
	this->m_VisaOP = this->m_sCard->GetVisaOP();
	BYTE aid[] = {0x55,0x44,0x33,0x22,0x11, 0x00, 0x22}; 
	try {
		this->m_VisaOP->SelectAID(aid,7);
	}
	catch(scu::Exception const &e)
	{
		MessageBox( e.Description(), "Error", MB_OK);
	}
} catch(scu::Exception const &e) {
	MessageBox( e.Description(), "Info", MB_OK);
}

// second, send PIN
this->bCLA = (byte)0x68;
this->bINS = (byte)0x30; // PIN
this->bP1  = (byte)0;
this->bP2  = (byte)0;
BYTE auxB[] = {0x00,0x00, 0x00,0x00};

try
{
	this->m_sCard->SendCardAPDU(this->bCLA,this->bINS,this->bP1,this->bP2,4,auxB,NULL,NULL);
}
catch(iop::CSmartCard::Exception const &e)
{
	WORD sw =  e.Status();
	if (sw == 0x6300) {
		MessageBox( "Wrong PIN.", "Error", MB_OK);
	}
	else {
		MessageBox( "Unknown error.", "Info", MB_OK);
	}
}

Until here I don’t get any error.

// third, send encrypted data
this->bCLA = (byte)0x68;
this->bINS = (byte)0x42; //decrypt
this->bP1  = (byte)0;
this->bP2  = (byte)0;

BYTE bDataBufferAux[1024];
memset(bDataBufferAux,'\0',1024);

BYTE* auxBuffer;
auxBuffer = pbEncryptedBlob;

for (int i=0; i<cbEncryptedBlob; i++){
	//this->bDataBuffer[cbEncryptedBlob-i] = auxBuffer[i];
	this->bDataBuffer[i] = auxBuffer[i];
}

try
{
// Encrypted message has 128 bytes long and decrypted has 28 bytes
	this->m_sCard->SendCardAPDU(this->bCLA,this->bINS,this->bP1,this->bP2,128,this->bDataBuffer,28,bDataBufferAux);
}
catch(iop::CSmartCard::Exception const &e)
{
	WORD sw =  e.Status();
	if (sw == 0x6300) {
		MessageBox("Wrong PIN.", "Error", MB_OK);
	}
	else if (sw == 0x6F00){
		MessageBox("SW_UNKNOWN", "Error", MB_OK);
	}
	else {
		MessageBox("Unknown error.", "Info", MB_OK);
	}
}

Here I get 0x6F00 error and because of that I need help.
I would be grateful if someone helps me. Thanks in advance.

Regards,
Manolo.

Re: VC++ Encryption using CryptoAPI and Decryption on smartcard

Malacitano19-Apr-06 10:13

Malacitano

19-Apr-06 10:13

I know I had to swap encrypted data but it didn't work when I tried because of my fault...
however I have found the problem now:

<br />
for (int i=0; i<cbEncryptedBlob; i++){<br />
        this->bDataBuffer[cbEncryptedBlob-i] = auxBuffer[i];<br />
<br />
}<br />

And it must be:

<br />
for (int i=0; i<cbEncryptedBlob; i++){<br />
        this->bDataBuffer[cbEncryptedBlob-i-1] = auxBuffer[i];<br />
<br />
}<br />

So now it works Smile | :)

)))

OpenGl

sataoa19-Apr-06 4:19

sataoa

19-Apr-06 4:19

Hello all of you,
During running the OpenGl programm on VC++ 6 on window 2000 i got an error that unable to locate Dll
what should i do?

-- modified at 10:20 Wednesday 19th April, 2006

Re: OpenGl

Cedric Moonen19-Apr-06 4:34

Cedric Moonen

19-Apr-06 4:34

sataoa wrote:
what should i do?

Provide more information. Which dll ? What is the exact error message ? Did you check if the required dll is present in the directory ?

about subclass windows.

FlyWithYou19-Apr-06 3:41

FlyWithYou

19-Apr-06 3:41

Hi.

1.If hook a thread all windows, use SetWindowsHookEx(WH_CALLWNDPROC,...) or SetWindowsHookEx(WH_CBT,...) is better?

2.How to fix unsubclass windows(1.if hook already hooked window, like I hook CWnd windows, or when i hooked window, other hook them, like i hook a window, the CWnd hook it.)

Thanks.

Upload files via HTTP

eusto19-Apr-06 3:22

eusto

19-Apr-06 3:22

I need to upload a file to a http server. In fact...i don't know if i need to upload it..Let me explain: I need to login to a http server, provide an username and a password to a html form (that is handled by a php script i guess) which will redirect me to a page containing a html form with a tag.
From the web users point of view..he logs in and the just hits the Upload button on the next page.

I managed to create the session and login to the website but i do not know what to do next. If anyone could point me into towards solving this i'd be forever in your debt Sniff | :^)

Re: Upload files via HTTP

includeh1019-Apr-06 3:49

includeh10

19-Apr-06 3:49

u may meet HOST professionals on this site
http://www.webhostingtalk.com/

here is VC forum, it is hard to say if people know ur question here.

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help on adding a progress control into status bar control

LordsAngel19-Apr-06 3:18

LordsAngel

19-Apr-06 3:18

Hi,

How do i add a progress control in status bar (something we see in MS IE), on win32 platform (using win32 apis) and c++. No MFC please.

Thanks in advance,

Angel

Re: help on adding a progress control into status bar control

David Crow19-Apr-06 3:27

David Crow

19-Apr-06 3:27

See here, here, and here. Although they do not meet your "no MFC" requirement, it should be easy enough to create a "msctls_progress32" window.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

please help without MFCs

LordsAngel19-Apr-06 3:40

LordsAngel

19-Apr-06 3:40

Thanks a bunch David.

But would like some help with out MFC.

Re: please help without MFCs

David Crow19-Apr-06 3:44

David Crow

19-Apr-06 3:44

LordsAngel wrote:
But would like some help with out MFC.

Understood, but the last time I did a progress control on the status bar sans MFC was back in 1993. That code has since faded away.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Got it.

LordsAngel19-Apr-06 4:49

LordsAngel

19-Apr-06 4:49

It was so simple. it was in front of me all the time. I just had to make the the progress control a child of the status bar. Simple. and specify the dimension when i create the window.

how to write to already opened console window

Bilge Kaan19-Apr-06 3:10

Bilge Kaan

19-Apr-06 3:10

Hello All,
I want to send cmds to previously opened console application

for instance ,sending dir cmd to already opened cmd prompt.

I got console window handle like below ,

HWND hwnd = ::FindWindow("ConsoleWindowClass","cmd.exe");

then how to write dir cmd to console?
how to retrieve console handle for input and output ?

Re: how to write to already opened console window

toxcct19-Apr-06 3:17

toxcct

19-Apr-06 3:17

is it important that is stays visible or do you only want to get the dir command's result ?

Re: how to write to already opened console window

Bilge Kaan19-Apr-06 3:37

Bilge Kaan

19-Apr-06 3:37

not only to get cmd result , i also want to keep it visible.

Re: how to write to already opened console window

Bilge Kaan19-Apr-06 3:42

Bilge Kaan

19-Apr-06 3:42

not only to get cmd result , i also want to keep it visible.

Re: how to write to already opened console window

Bilge Kaan19-Apr-06 3:53

Bilge Kaan

19-Apr-06 3:53

I found some samples in the net,where they create their own process and create pipe.
my problem is i want to write cmd to previously created console window and i dont know how to create pipe to this console

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