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How to export issued certificates from a CA programatically (C#)

  • Artikel

Hi all,

 

The following sample is a simplification of How to get info from client certificates issued by a CA (C#), and gets all the issued certs in the CA database and copies them to a folder:

 

 using System;
 using System.Windows.Forms;
 using System.IO;
 using CERTADMINLib;
 
 …
 
 // Parameters
 string strServer = "myserver";
 string strCAName = "myserver-CA";
 string strPathForCerts = "c:\\test\\";
 
 // Constants
 const int CV_OUT_BASE64HEADER = 0;
 const int CV_OUT_BINARY = 2;
 
 // Variables
 CERTADMINLib.CCertView certView = null;
 CERTADMINLib.IEnumCERTVIEWROW certViewRow = null;
 CERTADMINLib.IEnumCERTVIEWCOLUMN certViewColumn = null;
 int iColumnCount = 0;
 object objValue = null;
 string strID = "";
 StreamWriter objFile = null;
 
 // Connecting to the Certificate Authority
 certView = new CERTADMINLib.CCertView();
 certView.OpenConnection(strServer + "\\" + strCAName);
 
 // Get a column count and place columns into the view
 iColumnCount = certView.GetColumnCount(0);
 certView.SetResultColumnCount(iColumnCount);
 
 // Place each column in the view.
 for (int x = 0; x < iColumnCount; x++)
 {
 certView.SetResultColumn(x);
 }
 
 // Open the View and reset the row position
 certViewRow = certView.OpenView();
 certViewRow.Reset();
 
 // Enumerate Row and Column Information
 
 // Rows (one per cert) 
 for (int x = 0; certViewRow.Next() != -1; x++)
 {
 // Columns with the info we need
 certViewColumn = certViewRow.EnumCertViewColumn();
 while (certViewColumn.Next() != -1)
 {
 switch (certViewColumn.GetDisplayName())
 {
 // Request ID
 case "Request ID":
 objValue = certViewColumn.GetValue(CV_OUT_BINARY);
 if (objValue != null)
 {
 strID = "Request ID " + objValue.ToString();
 }
 break;
 
 // Binary Certificate
 case "Binary Certificate":
 objValue = certViewColumn.GetValue(CV_OUT_BASE64HEADER);
 if (objValue != null)
 {
 // Write certificate to file
 objFile = File.CreateText(strPathForCerts + strID + ".cer");
 objFile.Write(objValue.ToString());
 objFile.Close(); 
 }
 break;
 
 default:
 break;
 }
 }
 }
 
 MessageBox.Show("We are done!\nCerts have been copied to " + strPathForCerts);

 

I hope this helps.

Regards,

 

Alex (Alejandro Campos Magencio)

Comments

  • Anonymous
    September 03, 2014
    Is it possible to export certificate in .pfx file from CA instead of .cert