Problem with signing pdf document

[stefan.cacek]

Hi,

I migrate functionality connected with PDF document signing from SDK 3.5 to 4.0.
Certificates in solution are created using makecert (makecert.exe –r –pe –ss my –n cn=”MyCertificate”).

My solution worked fine with SDK 3.5 but in the same code with SDK 4.0 I receive error 0x80091002 “Unknown cryptographic algorithm.”.
When I generate certificate with algorithm (sha256, sha512) other then sha1 it works. But it works too with some sha1 certificates too.

In this moment I can’t regenerate all certificates connected with this solution, so I have the problem. hav You any idea how to signe document with sha1 certificate with SDK 4.0


Regards,
Stefan

[Tracker Supp-Stefan]

Hello Stefan,

have you tried catching the piece of code that throws this error and see if you can tune it slightly so that it doesn't cause those errors any more?

Also - if you cna provide us a snippet - we should be able to check the problem in more details.
Please make sure that your serial and dev codes are NOT visible in the snippet or we will need to deactivate them.

Best,
Stefan

[stefan.cacek]

This is a sample code

Code: Select all

	HRESULT hr ;
	PDFDocument pdf;

	hr = PXCp_Init(&pdf, "", "");

	hr =  PXCp_ReadDocumentW(pdf, L"e:\\a.pdf", 0);

	HCERTSTORE       hCertStore = NULL;       
	PCCERT_CONTEXT   pCertContext = NULL;   
	hCertStore = CertOpenSystemStore(NULL, L"MY");

             pCertContext = CryptUIDlgSelectCertificateFromStore(
                               hCertStore,      
                               NULL,
                               NULL, 
                               NULL,
                               CRYPTUI_SELECT_LOCATION_COLUMN,
                               0,
                               NULL);

            PXC_RectF sr;
            sr.left = I2L(1);
            sr.right = I2L(4);
            sr.top = I2L(3);
            sr.bottom = I2L(4);

            hr = PXCp_SignDocumentW(pdf, pCertContext, 0, &sr,  L"Test Reason", L"Test Location", L"Test Contact Info", L"E:\\1.jpg",
                      Sign_GR_Name | Sign_TX_Name | Sign_TX_Date |Sign_TX_Location | Sign_TX_Reason | Sign_TX_DName);
            //hr = 0x80091002 “Unknown cryptographic algorithm.”. 		  

            hr =  PXCp_WriteDocumentW(pdf, L"e:\\a123A.pdf", PXCp_CreationDisposition_Overwrite, (int)PXCp_Write_Release);

[Tracker Supp-Stefan]

Thanks Stefan,

We will take a look at this and advise as soon as possible.

Best,
Stefan

[Ivan - Tracker Software]

To stefan.cacek: what OS do you use?

[stefan.cacek]

I tested it o English Windows Vista Business SP2 (x86) and Polish Window 7 SP1 (x86).

[Tracker Supp-Stefan]

Thanks for the update Stefan Cacek,

Ivan will take a look and reply as soon as possible.

Best,
Stefan

[Ivan - Tracker Software]

I tested it o English Windows Vista Business SP2 (x86) and Polish Window 7 SP1 (x86).

And the results are the same as on XP ?