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flohogun2  
#1 Posted : Friday, October 3, 2014 3:18:58 AM(UTC)
flohogun2

Rank: Member

Groups: Registered
Joined: 12/23/2010(UTC)
Posts: 24
Location: rennes

Thanks: 8 times
Hello,

With the CAPICOM SDK I m able to retrieve for a certificat Email and Serial number :

ISignedDataPtr oSignedData = NULL;
ISignerPtr oSigner = oSignedData->Signers->Item[1];
_bstr_t bstrMail=oSigner->Certificate->GetInfo(CAPICOM_CERT_INFO_SUBJECT_EMAIL_NAME);
_bstr_t bstrSerial=oSigner->Certificate->SerialNumber;


Is it possible to do the same with the EAGetMailObjLib::ICertificatePtr?

Best regards,

florent
ivan  
#2 Posted : Friday, October 3, 2014 7:13:24 PM(UTC)
ivan

Rank: Administration

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Joined: 11/11/2010(UTC)
Posts: 1,014

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Was thanked: 41 time(s) in 41 post(s)
I am sorry it doesn't support this feature. I will add those features at next version.

However, you can implement it like this in your code:

include the following headers:

Code:

#include <Wincrypt.h>
#pragma comment( lib, "Crypt32.lib" )



Code:

//oCert is EAGetMailObjLib::ICertitificatePtr;
	
	// get serial number
	PCERT_CONTEXT pCertContext = (PCERT_CONTEXT)oCert->Handle;
	int len = pCertContext->pCertInfo->SerialNumber.cbData;
	TCHAR* pszSerial = new TCHAR[2*len+1];
	pszSerial[2*len] = _T('\0');
	TCHAR* pszBuf = pszSerial;

	for( int i = len-1; i >= 0 ; i-- )
	{
		::_stprintf( pszBuf, _T("%02x"), pCertContext->pCertInfo->SerialNumber.pbData[i] );
		pszBuf +=2;
	}
	//pszSerial is the serial number
	// please use delete [] pszSerial to free the memory.

	delete [] pszSerial;

	// get email address;
	DWORD dwOut = 0;
	dwOut = ::CertGetNameString(
		pCertContext,
		CERT_NAME_EMAIL_TYPE, 
		0,
		0,
		NULL,
		0 );

	if( dwOut == 0 )
	{
		DWORD dwLastError = ::GetLastError();
		return;
	}

	TCHAR* pszEmail = new TCHAR[dwOut+1];
	pszEmail[dwOut] = _T('\0');

	dwOut = ::CertGetNameString(
		pCertContext,
		CERT_NAME_EMAIL_TYPE, 
		0,
		0,
		pszEmail,
		dwOut );

	if( dwOut == 0 )
	{
		DWORD dwLastError = ::GetLastError();
		delete []pszEmail;
		return;
	}

	// please use delete [] szEmail to free the memory.

	delete []pszEmail;
	

thanks 1 user thanked ivan for this useful post.
flohogun2 on 10/7/2014(UTC)
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