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Software components for data protection, secure storage and transfer

Digital Signing on PDFs

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#31713
Posted: 12/19/2014 10:01:08
by sowjanya  (Standard support level)
Joined: 06/24/2014
Posts: 37

I am facing this problem again, I followed your article but I couldn't understand which part I missed in above code. Could you help me with this error "object reference not set to an instance of an object ". Which part I have missed in above code
#31714
Posted: 12/19/2014 10:10:57
by Eugene Mayevski (EldoS Corp.)

Please run the code in debugger and once the exception happens and debugger stops, capture the call stack and post it here.


Sincerely yours
Eugene Mayevski
#31716
Posted: 12/19/2014 23:54:37
by sowjanya  (Standard support level)
Joined: 06/24/2014
Posts: 37

at SBPKCS11Base.__Global.PKCS11CheckError(Int64 HLib, Int32 FunctionCode, UInt32 ResultCode)
at SBPKCS11Base.TElPKCS11SessionInfo.Login(Int32 UserType, String PIN)
at Sign_Pdf.Program.ReadCertificateData() in C:\DigitalSignature-USBToken\DigitalSignature\Sign_Pdf\Sign_Pdf\Program.cs:line 240

Hi, i am getting this msg at stack interface: line 240 is:
sessioninfo.Login(0, "12345678");

please refer sample above code
#31718
Posted: 12/20/2014 00:45:37
by sowjanya  (Standard support level)
Joined: 06/24/2014
Posts: 37

"pkcs11error ckR_session_read_only_ exists in c_login function"
I am getting this error in above stack interface
#31719
Posted: 12/20/2014 02:26:09
by Eugene Mayevski (EldoS Corp.)

Please use search sometimes.

The result code is returned by your device. It says "A read-only session already exists, and so the SO cannot be logged in". Most likely you are trying to login several times (probably from different threads).


Sincerely yours
Eugene Mayevski
#31720
Posted: 12/20/2014 02:56:18
by sowjanya  (Standard support level)
Joined: 06/24/2014
Posts: 37

I have searched this topic, but didn't found any result so i posted here.

I am trying to login only once, here is my code, i am getting same issue

pkcs11CertStorage.MonitorSlotEvents = true;
pkcs11CertStorage.DLLName = @"C:\Windows\System32\eps2003csp11.dll";
try
{
pkcs11CertStorage.Open();
TElPKCS11SlotInfo Slot = pkcs11CertStorage.Module.get_Slot(0);
// pkcs11CertStorage.Open();
try
{
sessioninfo = pkcs11CertStorage.OpenSession(0, true);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
sdata.StatusCode = -1;
sdata.Message = ex.Message;
return sdata;
}

sessioninfo.Login((0), "12345678");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
sdata.StatusCode = -1;
sdata.Message = ex.Message;
return sdata;
}


memoryCertStorage.Add(pkcs11CertStorage.get_Certificates(0), true);
sessioninfo.Close();

pkcs11CertStorage.Close();
#31721
Posted: 12/20/2014 04:05:58
by Eugene Mayevski (EldoS Corp.)

I meant searching Google for the PKCS#11 error code. The codes are standard, not ours.

I guess that maybe you are trying to pass the user PIN and not a security office PIN, while passing the user type as SecurityOffice (0 as the first parameter in Login method). Try passing 1 (regular user).


Sincerely yours
Eugene Mayevski
#31723
Posted: 12/20/2014 06:31:38
by sowjanya  (Standard support level)
Joined: 06/24/2014
Posts: 37

Thanks for your solution.
Sorry for bothering you again, In signing process i am getting an error that "Pkcs11 module not found"

sig.SigningTime = DateTime.UtcNow;
sig.Handler = publicKeyHandler;

// certStorage should contain at least one certificate with an associated private key.
publicKeyHandler.CertStorage = memoryCertStorage;
sig.WidgetProps.Locked = false;
sig.WidgetProps.AutoPos = false;
sig.WidgetProps.AutoSize = false;

sig.WidgetProps.Width = 40;
sig.WidgetProps.Height = 20;

sig.WidgetProps.AutoFontSize = false;
sig.WidgetProps.TitleFontSize = 5.0;
sig.WidgetProps.SectionTextFontSize = 3.0;
sig.WidgetProps.ShowTimestamp = false;
sig.WidgetProps.TimestampFontSize = 3;
sig.WidgetProps.SectionTitleFontSize = 5;
sig.WidgetProps.OffsetX = xpositionValue;
sig.WidgetProps.OffsetY = ypositionValue;
sig.WidgetProps.Print = true;
sig.WidgetProps.BackgroundStyle = TSBPDFWidgetBackgroundStyle.pbsDefault;
sig.WidgetProps.Background.Width = 20;
sig.WidgetProps.Background.Height = 20;
publicKeyHandler.CustomName = "Adobe.PPKMS";
//publicKeyHandler.SignatureType = TSBPDFPublicKeySignatureType.pstX509RSASHA1;
publicKeyHandler.SignatureType = TSBPDFPublicKeySignatureType.pstX509RSASHA1;
doc.Close(true);

Do i need to add module anywhere here??
#31724
Posted: 12/20/2014 07:41:13
by Dmytro Bogatskyy (EldoS Corp.)

Hello,

Quote
Sorry for bothering you again, In signing process i am getting an error that "Pkcs11 module not found"

You shouldn't close PKCS#11 session or dispose TElPKCS11CertStorage object while selected certificate is in use.
#31731
Posted: 12/21/2014 23:43:44
by sowjanya  (Standard support level)
Joined: 06/24/2014
Posts: 37

Thanks
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Access locked and protected files in Windows, read and write disks and partitions and more.

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