C++

CSR Get Extension Request

See more CSR Examples

If a CSR contains a 1.2.840.113549.1.9.14 extensionRequest, then this method will return the extension request in XML format.

Note: This example requires Chilkat v9.5.0.91 or greater.

C++

#include <CkCsr.h>
#include <CkFileAccess.h>
#include <CkXml.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  This requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    CkCsr csr;

    //  Load a CSR PEM file.  The file should contain content that looks like this:
    //  
    //  	-----BEGIN CERTIFICATE REQUEST-----
    //  	MII...
    //  	....
    //  	....
    //  	....
    //  	-----END CERTIFICATE REQUEST-----

    CkFileAccess fac;
    const char *csrPem = fac.readEntireTextFile("qa_data/csr/sample.pem","utf-8");

    success = csr.LoadCsrPem(csrPem);
    if (success != true) {
        std::cout << csr.lastErrorText() << "\r\n";
        return;
    }

    CkXml xml;

    success = csr.GetExtensionRequest(xml);
    if (success != true) {
        std::cout << "CSR has no extensionRequest." << "\r\n";
        return;
    }

    const char *xmlStr = xml.getXml();
    std::cout << xmlStr << "\r\n";

    //  Sample output:

    //  <?xml version="1.0" encoding="utf-8"?>
    //  <set>
    //      <sequence>
    //          <sequence>
    //              <oid>1.3.6.1.4.1.311.20.2</oid>
    //              <asnOctets>
    //                  <printable>ZATCA-Code-Signing</printable>
    //              </asnOctets>
    //          </sequence>
    //          <sequence>
    //              <oid>2.5.29.17</oid>
    //              <asnOctets>
    //                  <sequence>
    //                      <contextSpecific tag="4" constructed="1">
    //                          <sequence>
    //                              <set>
    //                                  <sequence>
    //                                      <oid>2.5.4.4</oid>
    //                                      <utf8>334623324234325</utf8>
    //                                  </sequence>
    //                              </set>
    //                              <set>
    //                                  <sequence>
    //                                      <oid>0.9.2342.19200300.100.1.1</oid>
    //                                      <utf8>310122393500003</utf8>
    //                                  </sequence>
    //                              </set>
    //                              <set>
    //                                  <sequence>
    //                                      <oid>2.5.4.12</oid>
    //                                      <utf8>0000</utf8>
    //                                  </sequence>
    //                              </set>
    //                              <set>
    //                                  <sequence>
    //                                      <oid>2.5.4.26</oid>
    //                                      <utf8>Sample E</utf8>
    //                                  </sequence>
    //                              </set>
    //                              <set>
    //                                  <sequence>
    //                                      <oid>2.5.4.15</oid>
    //                                      <utf8>Sample Business</utf8>
    //                                  </sequence>
    //                              </set>
    //                          </sequence>
    //                      </contextSpecific>
    //                  </sequence>
    //              </asnOctets>
    //          </sequence>
    //      </sequence>
    //  </set>

    //  Use this online tool to generate parsing code from sample XML: 
    //  Generate Parsing Code from XML
    }