C / C++ / MFC

19-Apr-06 4:45

Hi all,

I have an MFC app that was written in VC++6 that I'd like to run under VS 2003. Is there anything available that I can use to convert the code so I can compile it straight off?, or is it just plain wishful thinking?

Thanks,

Jimmy

Mila02519-Apr-06 4:51

Mila025

19-Apr-06 4:51

VS2003 will convert your project automatically. It can display some errors in your code, but surely nothing what you can't correct.

-----------
Mila

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'

David Crow19-Apr-06 5:22

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

DodgyG19-Apr-06 5:27

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

David Crow19-Apr-06 5:33

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

DodgyG19-Apr-06 5:58

19-Apr-06 5:58

It does

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

DodgyG19-Apr-06 5:59

19-Apr-06 5:59

Thanks Mike, I'll go do that now.

VC++ Encryption using CryptoAPI and Decryption on smartcard

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

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

Re: please help without MFCs

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.

David Crow19-Apr-06 3:44