// create the certifcate request
public string createCertifcate(string hostName)
{
// Create all the objects that will be required
CX509CertificateRequestPkcs10 objPkcs10 = new CX509CertificateRequestPkcs10();
CX509PrivateKey objPrivateKey = new CX509PrivateKey();
CCspInformation objCSP = new CCspInformation();
CCspInformations objCSPs = new CCspInformations();
CX500DistinguishedName objDN = new CX500DistinguishedName();
CX509Enrollment objEnroll = new CX509Enrollment();
CObjectIds objObjectIds = new CObjectIds();
CObjectId objObjectId = new CObjectId();
CX509ExtensionKeyUsage objExtensionKeyUsage = new CX509ExtensionKeyUsage();
CX509ExtensionEnhancedKeyUsage objX509ExtensionEnhancedKeyUsage = new CX509ExtensionEnhancedKeyUsage();
string CertifcateStr;
try
{
SqlLite sql = new SqlLite();
/*Check if there is allready request for the hostname so we dont need to create new one*/
if (sql.checkCertExsits(hostName) == 1)
{
return("Exsits");
}
if (sql.checkCertExsits(hostName) == 2)
{
return("Issued");
}
//create the private key (CX509CertificateRequestPkcs10 will initilizae from the private key)
objCSP.InitializeFromName("Microsoft Enhanced Cryptographic Provider v1.0");
objCSPs.Add(objCSP);
objPrivateKey.Length = 1024;
objPrivateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE;
objPrivateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES;
objPrivateKey.MachineContext = false;
objPrivateKey.CspInformations = objCSPs;
objPrivateKey.Create();
//create pkc10 object from the privaet key
objPkcs10.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextUser, objPrivateKey, "");
objExtensionKeyUsage.InitializeEncode(CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_DIGITAL_SIGNATURE_KEY_USAGE | CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_NON_REPUDIATION_KEY_USAGE |
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_KEY_ENCIPHERMENT_KEY_USAGE | CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_DATA_ENCIPHERMENT_KEY_USAGE);
// objPkcs10.X509Extensions.Add((CX509Extension)objExtensionKeyUsage);
// objObjectId.InitializeFromValue("1.3.6.1.5.5.7.3.2");
// objObjectIds.Add(objObjectId);
// objX509ExtensionEnhancedKeyUsage.InitializeEncode(objObjectIds);
// objPkcs10.X509Extensions.Add((CX509Extension)objX509ExtensionEnhancedKeyUsage);
objDN.Encode("CN=" + hostName, X500NameFlags.XCN_CERT_NAME_STR_NONE); //create DistinguishedName
objPkcs10.Subject = objDN; //initial the DistinguishedName
objEnroll.InitializeFromRequest(objPkcs10); //init enrollement request
CertifcateStr = objEnroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64); //Certifcate Request
return(CertifcateStr);
}
catch (Exception ex)
{
return("Error" + ex.Message);
}
}
