public string CreateRequest(string cn, string ou, string o, string l, string s, string c, string oid, int keylength)
{
var objCSPs = new CCspInformations();
objCSPs.AddAvailableCsps();
var objPrivateKey = new CX509PrivateKey();
objPrivateKey.Length = keylength;
objPrivateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE; //http://msdn.microsoft.com/en-us/library/windows/desktop/aa379409(v=vs.85).aspx
objPrivateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES; //http://msdn.microsoft.com/en-us/library/windows/desktop/aa379417(v=vs.85).aspx
objPrivateKey.MachineContext = false; //http://msdn.microsoft.com/en-us/library/windows/desktop/aa379024(v=vs.85).aspx
objPrivateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG; //http://msdn.microsoft.com/en-us/library/windows/desktop/aa379412(v=vs.85).aspx
objPrivateKey.CspInformations = objCSPs;
objPrivateKey.Create();
var objPkcs10 = new CX509CertificateRequestPkcs10();
objPkcs10.InitializeFromPrivateKey(
X509CertificateEnrollmentContext.ContextUser, //http://msdn.microsoft.com/en-us/library/windows/desktop/aa379399(v=vs.85).aspx
objPrivateKey,
string.Empty);
var objExtensionKeyUsage = new CX509ExtensionKeyUsage();
objExtensionKeyUsage.InitializeEncode(
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_DIGITAL_SIGNATURE_KEY_USAGE | // http://msdn.microsoft.com/en-us/library/windows/desktop/aa379410(v=vs.85).aspx
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_NON_REPUDIATION_KEY_USAGE | // http://msdn.microsoft.com/en-us/library/windows/desktop/aa379410(v=vs.85).aspx
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_KEY_ENCIPHERMENT_KEY_USAGE | // http://msdn.microsoft.com/en-us/library/windows/desktop/aa379410(v=vs.85).aspx
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_DATA_ENCIPHERMENT_KEY_USAGE); // http://msdn.microsoft.com/en-us/library/windows/desktop/aa379410(v=vs.85).aspx
objPkcs10.X509Extensions.Add((CX509Extension)objExtensionKeyUsage);
var objObjectId = new CObjectId();
var objObjectIds = new CObjectIds();
var objX509ExtensionEnhancedKeyUsage = new CX509ExtensionEnhancedKeyUsage();
//objObjectId.InitializeFromValue("1.3.6.1.5.5.7.3.1");
objObjectId.InitializeFromValue(oid); //Some info about OIDS: http://www.alvestrand.no/objectid/1.3.6.1.5.5.7.3.html
objObjectIds.Add(objObjectId);
objX509ExtensionEnhancedKeyUsage.InitializeEncode(objObjectIds);
objPkcs10.X509Extensions.Add((CX509Extension)objX509ExtensionEnhancedKeyUsage);
// TODO: Create CERTS with SAN: http://msdn.microsoft.com/en-us/library/windows/desktop/aa378081(v=vs.85).aspx
/*
var test3 = new CX509ExtensionAlternativeNames();
var test4 = new CAlternativeName();
var test2 = new CAlternativeNames();
test4.InitializeFromString(AlternativeNameType.XCN_CERT_ALT_NAME_DNS_NAME,"CRAP.no");
test2.Add(test4);
test3.InitializeEncode(test2);
*/
//objPkcs10.X509Extensions.Add((CX509Extension));
var objDN = new CX500DistinguishedName();
var subjectName = "CN = " + cn + ",OU = " + ou + ",O = " + o + ",L = " + l + ",S = " + s + ",C = " + c;
objDN.Encode(subjectName, X500NameFlags.XCN_CERT_NAME_STR_NONE); //http://msdn.microsoft.com/en-us/library/windows/desktop/aa379394(v=vs.85).aspx
objPkcs10.Subject = objDN;
var objEnroll = new CX509Enrollment();
objEnroll.InitializeFromRequest(objPkcs10);
var strRequest = objEnroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64); //http://msdn.microsoft.com/en-us/library/windows/desktop/aa374936(v=vs.85).aspx
return strRequest;
}
private void button1_Click(object sender, EventArgs e)
{
const int ECDSA_PRIVATE_P256_MAGIC = 0x32534345;
if (saveFileDialog1.ShowDialog() != DialogResult.OK)
{
return;
}
KeyPair key = (KeyPair)comboBox1.SelectedItem;
byte[] pubkey = key.PublicKey.EncodePoint(false).Skip(1).ToArray();
byte[] prikey = BitConverter.GetBytes(ECDSA_PRIVATE_P256_MAGIC).Concat(BitConverter.GetBytes(32)).Concat(pubkey).Concat(key.PrivateKey).ToArray();
CX509PrivateKey x509key = new CX509PrivateKey();
x509key.AlgorithmName = "ECDSA_P256";
x509key.Import("ECCPRIVATEBLOB", Convert.ToBase64String(prikey));
Array.Clear(prikey, 0, prikey.Length);
CX509CertificateRequestPkcs10 request = new CX509CertificateRequestPkcs10();
request.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextUser, x509key, null);
request.Subject = new CX500DistinguishedName();
request.Subject.Encode($"CN={textBox1.Text},C={textBox2.Text},S={textBox3.Text},SERIALNUMBER={textBox4.Text}");
request.Encode();
File.WriteAllText(saveFileDialog1.FileName, "-----BEGIN NEW CERTIFICATE REQUEST-----\r\n" + request.RawData + "-----END NEW CERTIFICATE REQUEST-----\r\n");
Close();
}
static void Main()
{
CX509Enrollment enroll = new CX509Enrollment();
CX509PrivateKey pri = new CX509PrivateKey();
CX509CertificateRequestPkcs10 request = new CX509CertificateRequestPkcs10();
CX500DistinguishedName dn = new CX500DistinguishedName();
pri.ProviderName = "eToken Base Cryptographic Provider";
pri.Length = 2048;
pri.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE;
//pri.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_DECRYPT_FLAG;
pri.ProviderType = X509ProviderType.XCN_PROV_RSA_FULL;
pri.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_NONE;
request.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextUser, pri, "");
dn.Encode("CN=KimiNoNaWa", X500NameFlags.XCN_CERT_NAME_STR_DISABLE_UTF8_DIR_STR_FLAG);
request.Subject = dn;
enroll.InitializeFromRequest(request);
string pkcs10 = enroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64);
Console.WriteLine(pkcs10);
//Do Enrollment
//Install certificate
//enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedRoot, pkcs10, EncodingType.XCN_CRYPT_STRING_BASE64REQUESTHEADER, "");
}
internal static Pkcs10CertificationRequest createKeyPair()
{
var objCSPs = new CCspInformations();
objCSPs.AddAvailableCsps();
var objPrivateKey = new CX509PrivateKey();
objPrivateKey.Length = 1024;
objPrivateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE;
objPrivateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES;
objPrivateKey.MachineContext = false;
objPrivateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG;
objPrivateKey.CspInformations = objCSPs;
objPrivateKey.Create();
var objPkcs10 = new CX509CertificateRequestPkcs10();
objPkcs10.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextUser,
objPrivateKey,
string.Empty);
//var objExtensionKeyUsage = new CX509ExtensionKeyUsage();
//objExtensionKeyUsage.InitializeEncode(
// CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_KEY_CERT_SIGN_KEY_USAGE |
// CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_CRL_SIGN_KEY_USAGE);
//objPkcs10.X509Extensions.Add((CX509Extension)objExtensionKeyUsage);
//var objObjectId = new CObjectId();
//var objObjectIds = new CObjectIds();
//var objX509ExtensionEnhancedKeyUsage = new CX509ExtensionEnhancedKeyUsage();
//objObjectId.InitializeFromValue("1.3.6.1.5.5.7.3.2");
//objObjectIds.Add(objObjectId);
//objX509ExtensionEnhancedKeyUsage.InitializeEncode(objObjectIds);
//objPkcs10.X509Extensions.Add((CX509Extension)objX509ExtensionEnhancedKeyUsage);
var objDN = new CX500DistinguishedName();
var subjectName = "CN = shaunxu.me, OU = ADCS, O = Blog, L = Beijng, S = Beijing, C = CN";
objDN.Encode(subjectName, X500NameFlags.XCN_CERT_NAME_STR_NONE);
objPkcs10.Subject = objDN;
var objEnroll = new CX509Enrollment();
objEnroll.InitializeFromRequest(objPkcs10);
var strRequest = objEnroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64);
Pkcs10CertificationRequest p10 = new Pkcs10CertificationRequest(Convert.FromBase64String(strRequest));
return(p10);
}
protected static string GenerateCSR()
{
var objPrivateKey = new CX509PrivateKey();
objPrivateKey.MachineContext = false;
objPrivateKey.Length = 2048;
objPrivateKey.ProviderType = X509ProviderType.XCN_PROV_RSA_AES;
objPrivateKey.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE;
objPrivateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES;
objPrivateKey.CspInformations = new CCspInformations();
objPrivateKey.CspInformations.AddAvailableCsps();
objPrivateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG;
objPrivateKey.Create();
var cert = new CX509CertificateRequestPkcs10();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextUser, objPrivateKey, string.Empty);
var objExtensionKeyUsage = new CX509ExtensionKeyUsage();
objExtensionKeyUsage.InitializeEncode((X509KeyUsageFlags)X509KeyUsageFlags.XCN_CERT_DIGITAL_SIGNATURE_KEY_USAGE |
X509KeyUsageFlags.XCN_CERT_NON_REPUDIATION_KEY_USAGE |
X509KeyUsageFlags.XCN_CERT_KEY_ENCIPHERMENT_KEY_USAGE |
X509KeyUsageFlags.XCN_CERT_DATA_ENCIPHERMENT_KEY_USAGE
);
cert.X509Extensions.Add((CX509Extension)objExtensionKeyUsage);
var cobjectId = new CObjectId();
cobjectId.InitializeFromName(CERTENROLL_OBJECTID.XCN_OID_PKIX_KP_CLIENT_AUTH);
var cobjectIds = new CObjectIds();
cobjectIds.Add(cobjectId);
var pValue = cobjectIds;
var cx509ExtensionEnhancedKeyUsage = new CX509ExtensionEnhancedKeyUsage();
cx509ExtensionEnhancedKeyUsage.InitializeEncode(pValue);
cert.X509Extensions.Add((CX509Extension)cx509ExtensionEnhancedKeyUsage);
var cx509Enrollment = new CX509Enrollment();
cx509Enrollment.InitializeFromRequest(cert);
var output = cx509Enrollment.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64);
return(output);
}
private CX509CertificateRequestPkcs10 NewCertificateRequestPkcs10(CertificateSubject subject, CX509PrivateKey privateKey)
{
CX509CertificateRequestPkcs10 pkcs10 = new CX509CertificateRequestPkcs10();
pkcs10.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, "");
if (subject.ContainsSubjectAlternativeName)
{
pkcs10.X509Extensions.Add(GetQualifiedSan(subject.SubjectAlternativeName));
}
pkcs10.X509Extensions.Add(GetKeyUsage());
pkcs10.Subject = GetEncodedSubject(subject);
return(pkcs10);
}
public string CreateTemplateRequest(string cn, string ou, string o, string l, string s, string c,
int keyLength,
string templateName)
{
var csp = new CCspInformations();
csp.AddAvailableCsps();
var privateKey = new CX509PrivateKey();
privateKey.Length = keyLength;
privateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE;
privateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES;
privateKey.MachineContext = false;
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG;
privateKey.CspInformations = csp;
privateKey.Create();
var pkcs10 = new CX509CertificateRequestPkcs10();
pkcs10.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextUser,
privateKey,
templateName);
var san = GetSAN(cn);
pkcs10.X509Extensions.Add((CX509Extension)san);
var distinguishedName = new CX500DistinguishedName();
var subjectName = $"{cn},OU = {ou},O = {o} ,L = {l},S = {s},C = {c}";
distinguishedName.Encode(subjectName);
pkcs10.Subject = distinguishedName;
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(pkcs10);
var strRequest = enroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64HEADER);
return(strRequest);
}
/// <summary>
/// The create active directory certificate request.
/// </summary>
/// <param name="templateName">
/// The template name.
/// </param>
/// <returns>
/// The <see cref="string"/>.
/// </returns>
public string CreateActiveDirectoryCertificateRequest(string templateName)
{
//// https://blogs.msdn.microsoft.com/alejacma/2008/09/05/how-to-create-a-certificate-request-with-certenroll-and-net-c/
//// http://geekswithblogs.net/shaunxu/archive/2012/01/13/working-with-active-directory-certificate-service-via-c.aspx
this.LastError.Clear();
try
{
var cspInformations = new CCspInformations();
cspInformations.AddAvailableCsps();
var privateKey = new CX509PrivateKey // Создали приватный ключ
{
Length = 2048,
KeySpec = X509KeySpec.XCN_AT_SIGNATURE,
KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES,
MachineContext = false,
ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG,
CspInformations = cspInformations
};
privateKey.Create();
var objPkcs10 = new CX509CertificateRequestPkcs10();
objPkcs10.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextUser, privateKey, templateName);
var objEnroll = new CX509Enrollment();
objEnroll.InitializeFromRequest(objPkcs10);
var strRequest = objEnroll.CreateRequest(); // Значение по уолчанию: EncodingType.XCN_CRYPT_STRING_BASE64
return(strRequest);
}
catch (Exception ex)
{
this.LastError.Add(ex.Message);
return(string.Empty);
}
}
public string CreateTemplateRequest(string cn, string ou, string o, string l, string s, string c, int keylength, string template)
{
var objCSPs = new CCspInformations();
objCSPs.AddAvailableCsps();
var objPrivateKey = new CX509PrivateKey();
objPrivateKey.Length = keylength;
objPrivateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE;
objPrivateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES;
objPrivateKey.MachineContext = false;
objPrivateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG;
objPrivateKey.CspInformations = objCSPs;
objPrivateKey.Create();
var objPkcs10 = new CX509CertificateRequestPkcs10();
objPkcs10.InitializeFromPrivateKey(
X509CertificateEnrollmentContext.ContextUser,
objPrivateKey,
template);
var objDN = new CX500DistinguishedName();
var subjectName = "CN = " + cn + ",OU = " + ou + ",O = " + o + ",L = " + l + ",S = " + s + ",C = " + c;
objDN.Encode(subjectName, X500NameFlags.XCN_CERT_NAME_STR_NONE);
objPkcs10.Subject = objDN;
var objEnroll = new CX509Enrollment();
objEnroll.InitializeFromRequest(objPkcs10);
var strRequest = objEnroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64);
return strRequest;
}
// 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
{
Database db = new Database();
/*Check if there is allready request for the hostname so we dont need to create new one*/
if (db.CheckIfCertificateExists(hostName) == 1)
{
return("Exsits");
}
if (db.CheckIfCertificateExists(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)
{
Database db = new Database();
db.InsertToErrorMessageTable(hostName, 0, ex.Message, "CreateCertifcate");//insert Error Message into The Error Table Log In The DataBase
return("Error" + ex.Message);
}
}
public void GenerateCsr(SSLCertificate cert)
{
// Create all the objects that will be required
CX509CertificateRequestPkcs10 pkcs10 = Activator.CreateInstance(Type.GetTypeFromProgID("X509Enrollment.CX509CertificateRequestPkcs10", true)) as CX509CertificateRequestPkcs10;
CX509PrivateKey privateKey = Activator.CreateInstance(Type.GetTypeFromProgID("X509Enrollment.CX509PrivateKey", true)) as CX509PrivateKey;
CCspInformation csp = Activator.CreateInstance(Type.GetTypeFromProgID("X509Enrollment.CCspInformation", true)) as CCspInformation;
CCspInformations csPs = Activator.CreateInstance(Type.GetTypeFromProgID("X509Enrollment.CCspInformations", true)) as CCspInformations;
CX500DistinguishedName dn = Activator.CreateInstance(Type.GetTypeFromProgID("X509Enrollment.CX500DistinguishedName", true)) as CX500DistinguishedName;
CX509Enrollment enroll = Activator.CreateInstance(Type.GetTypeFromProgID("X509Enrollment.CX509Enrollment", true)) as CX509Enrollment;
CObjectIds objectIds = Activator.CreateInstance(Type.GetTypeFromProgID("X509Enrollment.CObjectIds", true)) as CObjectIds;
CObjectId objectId = Activator.CreateInstance(Type.GetTypeFromProgID("X509Enrollment.CObjectId", true)) as CObjectId;
CX509ExtensionKeyUsage extensionKeyUsage = Activator.CreateInstance(Type.GetTypeFromProgID("X509Enrollment.CX509ExtensionKeyUsage", true)) as CX509ExtensionKeyUsage;
CX509ExtensionEnhancedKeyUsage x509ExtensionEnhancedKeyUsage = Activator.CreateInstance(Type.GetTypeFromProgID("X509Enrollment.CX509ExtensionEnhancedKeyUsage", true)) as CX509ExtensionEnhancedKeyUsage;
try
{
// Initialize the csp object using the desired Cryptograhic Service Provider (CSP)
csp.InitializeFromName("Microsoft RSA SChannel Cryptographic Provider");
// Add this CSP object to the CSP collection object
csPs.Add(csp);
// Provide key container name, key length and key spec to the private key object
privateKey.Length = cert.CSRLength;
privateKey.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE;
privateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES;
privateKey.ExportPolicy =
X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG
| X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_ARCHIVING_FLAG
| X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_ARCHIVING_FLAG
| X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG;
privateKey.MachineContext = true;
// Provide the CSP collection object (in this case containing only 1 CSP object)
// to the private key object
privateKey.CspInformations = csPs;
// Create the actual key pair
privateKey.Create();
// Initialize the PKCS#10 certificate request object based on the private key.
// Using the context, indicate that this is a user certificate request and don't
// provide a template name
pkcs10.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, "");
cert.PrivateKey = privateKey.ToString();
// Key Usage Extension
extensionKeyUsage.InitializeEncode(
CertEnrollInterop.X509KeyUsageFlags.XCN_CERT_DIGITAL_SIGNATURE_KEY_USAGE |
CertEnrollInterop.X509KeyUsageFlags.XCN_CERT_NON_REPUDIATION_KEY_USAGE |
CertEnrollInterop.X509KeyUsageFlags.XCN_CERT_KEY_ENCIPHERMENT_KEY_USAGE |
CertEnrollInterop.X509KeyUsageFlags.XCN_CERT_DATA_ENCIPHERMENT_KEY_USAGE
);
pkcs10.X509Extensions.Add((CX509Extension)extensionKeyUsage);
// Enhanced Key Usage Extension
objectId.InitializeFromName(CertEnrollInterop.CERTENROLL_OBJECTID.XCN_OID_PKIX_KP_SERVER_AUTH);
objectIds.Add(objectId);
x509ExtensionEnhancedKeyUsage.InitializeEncode(objectIds);
pkcs10.X509Extensions.Add((CX509Extension)x509ExtensionEnhancedKeyUsage);
// Encode the name in using the Distinguished Name object
string request = String.Format(@"CN={0}, O={1}, OU={2}, L={3}, S={4}, C={5}", cert.Hostname, cert.Organisation, cert.OrganisationUnit, cert.City, cert.State, cert.Country);
dn.Encode(request, X500NameFlags.XCN_CERT_NAME_STR_NONE);
// enable SMIME capabilities
pkcs10.SmimeCapabilities = true;
// Assing the subject name by using the Distinguished Name object initialized above
pkcs10.Subject = dn;
// Create enrollment request
enroll.InitializeFromRequest(pkcs10);
enroll.CertificateFriendlyName = cert.FriendlyName;
cert.CSR = enroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64REQUESTHEADER);
}
catch (Exception ex)
{
Log.WriteError("Error creating CSR", ex);
}
}
/// <summary>
/// Function used to create a certificate signing request using the OS.
/// Note that this function will place a certificate in the "Certificate Enrollment Requests" folder
/// of the certificate store specified in loc. You can view this by running either
/// certmgr or mmc from the command line.
/// </summary>
/// <param name="loc">Location to put certificate</param>
/// <param name="subject_line">The subject line of the certificate, fields should be ; seperated, i.e.: "C=US; ST=Minnesota; L=Eden Prairie; O=Forward Pay Systems, Inc.; OU=Forward Pay; CN=fps.com"</param>
/// <returns>The certificate signing request, if successful in PEM format</returns>
public string GenerateRequest()
{
//code originally came from: http://blogs.msdn.com/b/alejacma/archive/2008/09/05/how-to-create-a-certificate-request-with-certenroll-and-net-c.aspx
//modified version of it is here: http://stackoverflow.com/questions/16755634/issue-generating-a-csr-in-windows-vista-cx509certificaterequestpkcs10
//here is the standard for certificates: http://www.ietf.org/rfc/rfc3280.txt
//the PKCS#10 certificate request (http://msdn.microsoft.com/en-us/library/windows/desktop/aa377505.aspx)
CX509CertificateRequestPkcs10 objPkcs10 = new CX509CertificateRequestPkcs10();
//assymetric private key that can be used for encryption (http://msdn.microsoft.com/en-us/library/windows/desktop/aa378921.aspx)
CX509PrivateKey objPrivateKey = new CX509PrivateKey();
//access to the general information about a cryptographic provider (http://msdn.microsoft.com/en-us/library/windows/desktop/aa375967.aspx)
CCspInformation objCSP = new CCspInformation();
//collection on cryptographic providers available: http://msdn.microsoft.com/en-us/library/windows/desktop/aa375967(v=vs.85).aspx
CCspInformations objCSPs = new CCspInformations();
CX500DistinguishedName objDN = new CX500DistinguishedName();
//top level object that enables installing a certificate response http://msdn.microsoft.com/en-us/library/windows/desktop/aa377809.aspx
CX509Enrollment objEnroll = new CX509Enrollment();
CObjectIds objObjectIds = new CObjectIds();
CObjectId objObjectId = new CObjectId();
CObjectId objObjectId2 = new CObjectId();
CX509ExtensionKeyUsage objExtensionKeyUsage = new CX509ExtensionKeyUsage();
CX509ExtensionEnhancedKeyUsage objX509ExtensionEnhancedKeyUsage = new CX509ExtensionEnhancedKeyUsage();
string csr_pem = null;
// Initialize the csp object using the desired Cryptograhic Service Provider (CSP)
objCSPs.AddAvailableCsps();
//Provide key container name, key length and key spec to the private key object
objPrivateKey.ProviderName = providerName;
objPrivateKey.Length = KeyLength;
objPrivateKey.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE; //Must flag as XCN_AT_KEYEXCHANGE to use this certificate for exchanging symmetric keys (needed for most SSL cipher suites)
objPrivateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES;
if (Location == StoreLocation.LocalMachine)
{
objPrivateKey.MachineContext = true;
}
else
{
objPrivateKey.MachineContext = false; //must set this to true if installing to the local machine certificate store
}
objPrivateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG; //must set this if we want to be able to export it later. (for WinSIP maybe we don't want to be able to ever export the key??)
objPrivateKey.CspInformations = objCSPs;
// Create the actual key pair
objPrivateKey.Create();
// Initialize the PKCS#10 certificate request object based on the private key.
// Using the context, indicate that this is a user certificate request and don't
// provide a template name
if (Location == StoreLocation.LocalMachine)
{
objPkcs10.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, objPrivateKey, "");
}
else
{
objPkcs10.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextUser, objPrivateKey, "");
}
//Set has to sha256
CObjectId hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID, ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY, AlgorithmFlags.AlgorithmFlagsNone, "SHA256");
objPkcs10.HashAlgorithm = hashobj;
// Key Usage Extension -- we only need digital signature and key encipherment for TLS:
// NOTE: in openSSL, I didn't used to request any specific extensions. Instead, I let the CA add them
objExtensionKeyUsage.InitializeEncode(
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_DIGITAL_SIGNATURE_KEY_USAGE |
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_KEY_ENCIPHERMENT_KEY_USAGE
);
objPkcs10.X509Extensions.Add((CX509Extension)objExtensionKeyUsage);
// Enhanced Key Usage Extension
objObjectId.InitializeFromValue("1.3.6.1.5.5.7.3.1"); // OID for Server Authentication usage (see this: http://stackoverflow.com/questions/17477279/client-authentication-1-3-6-1-5-5-7-3-2-oid-in-server-certificates)
objObjectId2.InitializeFromValue("1.3.6.1.5.5.7.3.2"); // OID for Client Authentication usage (see this: http://stackoverflow.com/questions/17477279/client-authentication-1-3-6-1-5-5-7-3-2-oid-in-server-certificates)
objObjectIds.Add(objObjectId);
objObjectIds.Add(objObjectId2);
objX509ExtensionEnhancedKeyUsage.InitializeEncode(objObjectIds);
objPkcs10.X509Extensions.Add((CX509Extension)objX509ExtensionEnhancedKeyUsage);
// Encode the name in using the Distinguished Name object
// see here: http://msdn.microsoft.com/en-us/library/windows/desktop/aa379394(v=vs.85).aspx
/*objDN.Encode(
* "C=US, ST=Minnesota, L=Eden Prairie, O=Forward Pay Systems; Inc., OU=Forward Pay, CN=ERIC_CN",
* X500NameFlags.XCN_CERT_NAME_STR_NONE
* );*/
objDN.Encode(
Subject,
X500NameFlags.XCN_CERT_NAME_STR_SEMICOLON_FLAG
); //"C=US; ST=Minnesota; L=Eden Prairie; O=Forward Pay Systems, Inc.; OU=Forward Pay; CN=ERIC_CN"
// Assing the subject name by using the Distinguished Name object initialized above
objPkcs10.Subject = objDN;
//suppress extra attributes:
objPkcs10.SuppressDefaults = true;
// Create enrollment request
objEnroll.InitializeFromRequest(objPkcs10);
csr_pem = objEnroll.CreateRequest(
EncodingType.XCN_CRYPT_STRING_BASE64
);
csr_pem = "-----BEGIN CERTIFICATE REQUEST-----\r\n" + csr_pem + "-----END CERTIFICATE REQUEST-----";
return(csr_pem);
}
public void GenerateCsr(SSLCertificate cert)
{
// Create all the objects that will be required
CX509CertificateRequestPkcs10 pkcs10 = new CX509CertificateRequestPkcs10();
CX509PrivateKey privateKey = new CX509PrivateKey();
CCspInformation csp = new CCspInformation();
CCspInformations csPs = new CCspInformations();
CX500DistinguishedName dn = new CX500DistinguishedName();
CX509Enrollment enroll = new CX509Enrollment();
CObjectIds objectIds = new CObjectIds();
CObjectId clientObjectId = new CObjectId();
CObjectId serverObjectId = new CObjectId();
CX509ExtensionKeyUsage extensionKeyUsage = new CX509ExtensionKeyUsage();
CX509ExtensionEnhancedKeyUsage x509ExtensionEnhancedKeyUsage = new CX509ExtensionEnhancedKeyUsage();
try
{
// Initialize the csp object using the desired Cryptograhic Service Provider (CSP)
csp.InitializeFromName("Microsoft RSA SChannel Cryptographic Provider");
// Add this CSP object to the CSP collection object
csPs.Add(csp);
// Provide key container name, key length and key spec to the private key object
//objPrivateKey.ContainerName = "AlejaCMa";
privateKey.Length = cert.CSRLength;
privateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE;
privateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES;
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG | X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG;
privateKey.MachineContext = true;
// Provide the CSP collection object (in this case containing only 1 CSP object)
// to the private key object
privateKey.CspInformations = csPs;
// Create the actual key pair
privateKey.Create();
// Initialize the PKCS#10 certificate request object based on the private key.
// Using the context, indicate that this is a user certificate request and don't
// provide a template name
pkcs10.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, "");
cert.PrivateKey = privateKey.ToString();
// Key Usage Extension
extensionKeyUsage.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
);
pkcs10.X509Extensions.Add((CX509Extension)extensionKeyUsage);
// Enhanced Key Usage Extension
clientObjectId.InitializeFromValue("1.3.6.1.5.5.7.3.2");
objectIds.Add(clientObjectId);
serverObjectId.InitializeFromValue("1.3.6.1.5.5.7.3.1");
objectIds.Add(serverObjectId);
x509ExtensionEnhancedKeyUsage.InitializeEncode(objectIds);
pkcs10.X509Extensions.Add((CX509Extension)x509ExtensionEnhancedKeyUsage);
// Encode the name in using the Distinguished Name object
string request = String.Format(@"CN={0}, O={1}, OU={2}, L={3}, S={4}, C={5}", cert.Hostname, cert.Organisation, cert.OrganisationUnit, cert.City, cert.State, cert.Country);
dn.Encode(request, X500NameFlags.XCN_CERT_NAME_STR_NONE);
// Assing the subject name by using the Distinguished Name object initialized above
pkcs10.Subject = dn;
// Create enrollment request
enroll.InitializeFromRequest(pkcs10);
enroll.CertificateFriendlyName = cert.FriendlyName;
cert.CSR = enroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64REQUESTHEADER);
}
catch (Exception ex)
{
Log.WriteError("Error creating CSR", ex);
}
}
public void GenerateCsr(SSLCertificate cert)
{
// Create all the objects that will be required
CX509CertificateRequestPkcs10 pkcs10 = new CX509CertificateRequestPkcs10();
CX509PrivateKey privateKey = new CX509PrivateKey();
CCspInformation csp = new CCspInformation();
CCspInformations csPs = new CCspInformations();
CX500DistinguishedName dn = new CX500DistinguishedName();
CX509Enrollment enroll = new CX509Enrollment();
CObjectIds objectIds = new CObjectIds();
CObjectId clientObjectId = new CObjectId();
CObjectId serverObjectId = new CObjectId();
CX509ExtensionKeyUsage extensionKeyUsage = new CX509ExtensionKeyUsage();
CX509ExtensionEnhancedKeyUsage x509ExtensionEnhancedKeyUsage = new CX509ExtensionEnhancedKeyUsage();
try
{
// Initialize the csp object using the desired Cryptograhic Service Provider (CSP)
csp.InitializeFromName("Microsoft RSA SChannel Cryptographic Provider");
// Add this CSP object to the CSP collection object
csPs.Add(csp);
// Provide key container name, key length and key spec to the private key object
//objPrivateKey.ContainerName = "AlejaCMa";
privateKey.Length = cert.CSRLength;
privateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE;
privateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES;
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG | X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG;
privateKey.MachineContext = true;
// Provide the CSP collection object (in this case containing only 1 CSP object)
// to the private key object
privateKey.CspInformations = csPs;
// Create the actual key pair
privateKey.Create();
// Initialize the PKCS#10 certificate request object based on the private key.
// Using the context, indicate that this is a user certificate request and don't
// provide a template name
pkcs10.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, "");
cert.PrivateKey = privateKey.ToString();
// Key Usage Extension
extensionKeyUsage.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
);
pkcs10.X509Extensions.Add((CX509Extension)extensionKeyUsage);
// Enhanced Key Usage Extension
clientObjectId.InitializeFromValue("1.3.6.1.5.5.7.3.2");
objectIds.Add(clientObjectId);
serverObjectId.InitializeFromValue("1.3.6.1.5.5.7.3.1");
objectIds.Add(serverObjectId);
x509ExtensionEnhancedKeyUsage.InitializeEncode(objectIds);
pkcs10.X509Extensions.Add((CX509Extension)x509ExtensionEnhancedKeyUsage);
// Encode the name in using the Distinguished Name object
string request = String.Format(@"CN={0}, O={1}, OU={2}, L={3}, S={4}, C={5}", cert.Hostname, cert.Organisation, cert.OrganisationUnit, cert.City, cert.State, cert.Country);
dn.Encode(request, X500NameFlags.XCN_CERT_NAME_STR_NONE);
// Assing the subject name by using the Distinguished Name object initialized above
pkcs10.Subject = dn;
// Create enrollment request
enroll.InitializeFromRequest(pkcs10);
enroll.CertificateFriendlyName = cert.FriendlyName;
cert.CSR = enroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64REQUESTHEADER);
}
catch (Exception ex)
{
Log.WriteError("Error creating CSR", ex);
}
}