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;
}
/// <summary>
/// Submit a certificate signing request to a certificate authority, such as a server running Active Directory Certificate Services, and return the certificate or response.
/// </summary>
/// <param name="csr">Certificate signing request to be submitted.</param>
/// <param name="friendlyName">The friendly name of the certificate.</param>
/// <param name="caServer">The certificate authority server instance.</param>
/// <param name="csrResponse">Response from the certificate signing request, represented as a CsrResponse enum.</param>
/// <param name="dispositionMessage">Message returned when a certificate signing fails.</param>
public X509Certificate2 SubmitCertificateSigningRequest(CX509CertificateRequestCertificate csr, string friendlyName, string caServer, out CsrResponse csrResponse, out string dispositionMessage)
{
// Convert the certificate signing request to base-64..
CX509Enrollment enrollment = new CX509Enrollment();
enrollment.InitializeFromRequest(csr);
enrollment.CertificateFriendlyName = friendlyName;
string csrText = enrollment.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64);
// Submit the request to the certificate authority.
CCertRequest certRequest = new CCertRequest();
int csrResponseCode = certRequest.Submit(CR_IN_BASE64 | CR_IN_FORMATANY, csrText, string.Empty, caServer);
// React to our response response from the certificate authority.
switch (csrResponseCode)
{
case 3: // Issued.
csrResponse = CsrResponse.CR_DISP_ISSUED;
dispositionMessage = "";
return new X509Certificate2(Encoding.UTF8.GetBytes(certRequest.GetCertificate(CR_OUT_BASE64 | CR_OUT_CHAIN)));
case 5: // Pending.
csrResponse = CsrResponse.CR_DISP_UNDER_SUBMISSION;
dispositionMessage = "";
return null;
default: // Failure.
csrResponse = CsrResponse.CR_DISP_FAILED;
dispositionMessage = certRequest.GetDispositionMessage();
return null;
}
}
private string BuildEncodedCsr(CX509CertificateRequestPkcs10 pkcs10)
{
CX509Enrollment enrollment = new CX509Enrollment();
enrollment.InitializeFromRequest(pkcs10);
return(enrollment.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64));
}
// create a certificate for testing
// https://stackoverflow.com/q/18339706
static public X509Certificate2 CreateSelfSignedCertificate(string subjectName, TimeSpan expirationLength)
{
// create DN for subject and issuer
var dn = new CX500DistinguishedName();
dn.Encode("CN=" + subjectName, X500NameFlags.XCN_CERT_NAME_STR_NONE);
CX509PrivateKey privateKey = new CX509PrivateKey
{
ProviderName = "Microsoft Strong Cryptographic Provider",
Length = 2048,
KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE,
KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_DECRYPT_FLAG | X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_KEY_AGREEMENT_FLAG,
MachineContext = true,
ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG
};
privateKey.Create();
// Use the stronger SHA512 hashing algorithm
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
AlgorithmFlags.AlgorithmFlagsNone, "SHA512");
// Create the self signing request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, "");
cert.Subject = dn;
cert.Issuer = dn; // the issuer and the subject are the same
cert.NotBefore = DateTime.Now.Date;
// this cert expires immediately. Change to whatever makes sense for you
cert.NotAfter = cert.NotBefore + expirationLength;
cert.HashAlgorithm = hashobj; // Specify the hashing algorithm
cert.Encode(); // encode the certificate
// Do the final enrollment process
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert); // load the certificate
enroll.CertificateFriendlyName = subjectName; // Optional: add a friendly name
string csr = enroll.CreateRequest(); // Output the request in base64
// and install it back as the response
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate,
csr, EncodingType.XCN_CRYPT_STRING_BASE64, ""); // no password
// output a base64 encoded PKCS#12 so we can import it back to the .Net security classes
var base64encoded = enroll.CreatePFX("", // no password, this is for internal consumption
PFXExportOptions.PFXExportChainWithRoot);
// instantiate the target class with the PKCS#12 data (and the empty password)
return(new System.Security.Cryptography.X509Certificates.X509Certificate2(
System.Convert.FromBase64String(base64encoded), "",
// mark the private key as exportable (this is usually what you want to do)
// mark private key to go into the Machine store instead of the current users store
X509KeyStorageFlags.Exportable | X509KeyStorageFlags.MachineKeySet | X509KeyStorageFlags.PersistKeySet
));
}
/// <summary>
/// Submit a certificate signing request to a certificate authority, such as a server running Active Directory Certificate Services, and return the certificate or response.
/// </summary>
/// <param name="csr">Certificate signing request to be submitted.</param>
/// <param name="friendlyName">The friendly name of the certificate.</param>
/// <param name="caServer">The certificate authority server instance.</param>
/// <param name="csrResponse">Response from the certificate signing request, represented as a CsrResponse enum.</param>
/// <param name="dispositionMessage">Message returned when a certificate signing fails.</param>
public X509Certificate2 SubmitCertificateSigningRequest(CX509CertificateRequestCertificate csr, string friendlyName, string caServer, out CsrResponse csrResponse, out string dispositionMessage)
{
// Convert the certificate signing request to base-64..
CX509Enrollment enrollment = new CX509Enrollment();
enrollment.InitializeFromRequest(csr);
enrollment.CertificateFriendlyName = friendlyName;
string csrText = enrollment.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64);
// Submit the request to the certificate authority.
CCertRequest certRequest = new CCertRequest();
int csrResponseCode = certRequest.Submit(CR_IN_BASE64 | CR_IN_FORMATANY, csrText, string.Empty, caServer);
// React to our response response from the certificate authority.
switch (csrResponseCode)
{
case 3: // Issued.
csrResponse = CsrResponse.CR_DISP_ISSUED;
dispositionMessage = "";
return(new X509Certificate2(Encoding.UTF8.GetBytes(certRequest.GetCertificate(CR_OUT_BASE64 | CR_OUT_CHAIN))));
case 5: // Pending.
csrResponse = CsrResponse.CR_DISP_UNDER_SUBMISSION;
dispositionMessage = "";
return(null);
default: // Failure.
csrResponse = CsrResponse.CR_DISP_FAILED;
dispositionMessage = certRequest.GetDispositionMessage();
return(null);
}
}
/// <summary>
/// Creates a self signed certificate given the parameters.
/// </summary>
/// <param name="subject"></param>
/// <param name="cipher"></param>
/// <param name="keysize"></param>
/// <param name="api"></param>
/// <returns></returns>
public X509Certificate2 CreateSelfSignedCertificate(CertificateSubject subject, CipherAlgorithm cipher, int keysize, WindowsApi api)
{
CX509PrivateKey privateKey = CreatePrivateKey(cipher, keysize);
CX509CertificateRequestCertificate pkcs10 = NewCertificateRequestCrc(subject, privateKey);
pkcs10.Issuer = pkcs10.Subject;
pkcs10.NotBefore = DateTime.Now.AddDays(-1);
pkcs10.NotAfter = DateTime.Now.AddYears(20);
var sigoid = new CObjectId();
var alg = new Oid("SHA256");
sigoid.InitializeFromValue(alg.Value);
pkcs10.SignatureInformation.HashAlgorithm = sigoid;
pkcs10.Encode();
CX509Enrollment enrollment = new CX509Enrollment();
enrollment.InitializeFromRequest(pkcs10);
string csr = enrollment.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64);
InstallResponseRestrictionFlags restrictionFlags = InstallResponseRestrictionFlags.AllowUntrustedCertificate;
enrollment.InstallResponse(restrictionFlags, csr, EncodingType.XCN_CRYPT_STRING_BASE64, string.Empty);
string pwd = secret.NewSecret(16);
string pfx = enrollment.CreatePFX(pwd, PFXExportOptions.PFXExportChainWithRoot, EncodingType.XCN_CRYPT_STRING_BASE64);
return(new X509Certificate2(Convert.FromBase64String(pfx), pwd));
}
/// <summary>
/// Generate a self-signed certificate and add it to the Windows certificate store.
/// </summary>
/// <param name="subjectName">The subject name of the certificate.</param>
/// <param name="friendlyName">The friendly name of the certificate.</param>
/// <param name="location">Location of the certificate; either the Current User or Local Machine.</param>
/// <param name="addAsTrustedRoot">Whether to add the generated certificate as a trusted root.</param>
/// <param name="keyLength">Size of the key in bits.</param>
/// <param name="durationYears">Duration of the certificate, specified in years.</param>
/// <param name="oids">Collection of OIDs identifying certificate usage.</param>
public static X509Certificate2 CreateSelfSignedCertificate(string subjectName, string friendlyName, StoreLocation location, bool addAsTrustedRoot, int keyLength, int durationYears, List <string> oids)
{
// Create the self-signing request.
CX509CertificateRequestCertificate cert = CreateCertificateSigningRequest(subjectName, keyLength, durationYears, oids);
// Enroll based on the certificate signing request.
CX509Enrollment enrollment = new CX509Enrollment();
enrollment.InitializeFromRequest(cert);
enrollment.CertificateFriendlyName = friendlyName;
string csrText = enrollment.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64);
// Install the certificate chain. Note that no password is specified.
enrollment.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate, csrText, EncodingType.XCN_CRYPT_STRING_BASE64, "");
// Base-64 encode the PKCS#12 certificate in order to re-import it.
string pfx = enrollment.CreatePFX("", PFXExportOptions.PFXExportChainWithRoot);
// Instantiate the PKCS#12 certificate.
X509Certificate2 certificate = new X509Certificate2(System.Convert.FromBase64String(pfx), "", X509KeyStorageFlags.Exportable);
// If specified, also install the certificate to the trusted root store.
if (addAsTrustedRoot)
{
X509Store rootStore = new X509Store(StoreName.Root, location);
rootStore.Open(OpenFlags.ReadWrite);
rootStore.Add(certificate);
rootStore.Close();
}
return(certificate);
}
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, "");
}
private string CreateCertificate(string publisherName)
{
var cert = CreateCertificateRequest(publisherName);
AddKeyUsage(cert);
AddExtendedKeyUsage(cert);
AddBasicConstraints(cert);
// Specify the hashing algorithm
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
AlgorithmFlags.AlgorithmFlagsNone, "SHA256");
cert.HashAlgorithm = hashobj;
cert.Encode();
// Do the final enrollment process
var enrollment = new CX509Enrollment();
enrollment.InitializeFromRequest(cert); // load the certificate
enrollment.CertificateFriendlyName = cert.Subject.Name;
var request = enrollment.CreateRequest();
enrollment.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate, request, EncodingType.XCN_CRYPT_STRING_BASE64, "");
var base64Encoded = enrollment.CreatePFX("", PFXExportOptions.PFXExportChainWithRoot);
return(base64Encoded);
}
public static X509Certificate2 CreateSelfSignedCertificate(string subjectName)
{
//To make a certificate was used system library from CERTENROLLLib
//This lib provides methods for creation certificates in windows envinronment
//Defines the subject and issuer of the cert
CX500DistinguishedName dn = new CX500DistinguishedName();
dn.Encode("CN=" + subjectName, X500NameFlags.XCN_CERT_NAME_STR_NONE);
//Create a new private key for the certificate
//Was decided not to make them variably in this progr
CX509PrivateKey privateKey = new CX509PrivateKey();
privateKey.ProviderName = "Microsoft Base Cryptographic Provider v1.0"; //issuer for a selfsigned certificate
privateKey.MachineContext = true;
privateKey.Length = 2048;
privateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE; //Use is not limited
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG;
privateKey.Create();
//Use trong SHA512 hashing algorithm
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
AlgorithmFlags.AlgorithmFlagsNone, "SHA512");
// Create the self signing request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, "");
cert.Subject = dn;
cert.Issuer = dn; // The issuer and the subject are the same
cert.NotBefore = DateTime.Now;
cert.NotAfter = new DateTime(2018, 12, 31); // I don't think that anybody cares about using this cert longer than this period
cert.HashAlgorithm = hashobj; // Specify the hashing algorithm
cert.Encode(); // Encode the certificate
// Do the final stuff
//Enroll is
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert); // load the certificate
string csr = enroll.CreateRequest(); // Output the request in base64
// and install it back as the response
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate,
csr, EncodingType.XCN_CRYPT_STRING_BASE64, ""); // no password
// output a base64 encoded PKCS#12 so we can import it back to the .Net security classes
var base64encoded = enroll.CreatePFX("", // password isn't possible
PFXExportOptions.PFXExportChainWithRoot);
// instantiate the target class with the PKCS#12 data (and the empty password)
return(new X509Certificate2(Convert.FromBase64String(base64encoded), "",
// mark the private key as exportable, coz we want to put it into registry
X509KeyStorageFlags.Exportable));
}
public static X509Certificate2 CreateSelfSignedCertificate(string issuer, string name)
{
try
{
// create a DN for issuer and subject
var dn = new CX500DistinguishedName();
dn.Encode("CN=" + issuer, X500NameFlags.XCN_CERT_NAME_STR_NONE);
// create a private key for the certificate
var privateKey = new CX509PrivateKey();
privateKey.ProviderName = "Microsoft Base Cryptographic Provider v1.0";
privateKey.MachineContext = true;
privateKey.Length = 2048;
privateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE;
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG;
privateKey.Create();
// use the stronger SHA512 hashing algorithm
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID, ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY, AlgorithmFlags.AlgorithmFlagsNone, "SHA512");
// add extended key usage (look at MSDN for a list of possible OIDs)
var oid = new CObjectId();
oid.InitializeFromValue("1.3.6.1.5.5.7.3.1"); // SSL server
var oidlist = new CObjectIds();
oidlist.Add(oid);
var eku = new CX509ExtensionEnhancedKeyUsage();
eku.InitializeEncode(oidlist);
// create the self signing request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, "");
cert.Issuer = dn;
cert.Subject = dn;
cert.NotBefore = DateTime.Now;
cert.NotAfter = DateTime.Now.AddYears(1); // 1 year expiration
cert.X509Extensions.Add((CX509Extension)eku);
cert.HashAlgorithm = hashobj;
cert.Encode();
// do the final enrollment process
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert);
enroll.CertificateFriendlyName = name;
string csr = enroll.CreateRequest();
// output a base64 encoded PKCS#12
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate, csr, EncodingType.XCN_CRYPT_STRING_BASE64, "");
var base64encoded = enroll.CreatePFX("", PFXExportOptions.PFXExportChainWithRoot);
// return the certificate
return(new X509Certificate2(Convert.FromBase64String(base64encoded), "", X509KeyStorageFlags.Exportable));
}
catch (Exception exc)
{
Trace.TraceError("Failed to create a self-signed certificate ({0})", exc);
throw;
}
}
public static X509Certificate2 CreateSelfSignedCertificate(string subjectName, DateTime startDate, DateTime endDate, String password)
{
// Create DistinguishedName for subject and issuer
var name = new CX500DistinguishedName();
name.Encode("CN=" + subjectName, X500NameFlags.XCN_CERT_NAME_STR_NONE);
// Create a new Private Key for the certificate
CX509PrivateKey privateKey = new CX509PrivateKey();
privateKey.ProviderName = "Microsoft RSA SChannel Cryptographic Provider";
privateKey.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE;
privateKey.Length = 2048;
privateKey.SecurityDescriptor = "D:PAI(A;;0xd01f01ff;;;SY)(A;;0xd01f01ff;;;BA)(A;;0x80120089;;;NS)";
privateKey.MachineContext = true;
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG;
privateKey.Create();
// Define the hashing algorithm
var serverauthoid = new CObjectId();
serverauthoid.InitializeFromValue("1.3.6.1.5.5.7.3.1"); // Server Authentication
var ekuoids = new CObjectIds();
ekuoids.Add(serverauthoid);
var ekuext = new CX509ExtensionEnhancedKeyUsage();
ekuext.InitializeEncode(ekuoids);
// Create the self signing request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, String.Empty);
cert.Subject = name;
cert.Issuer = cert.Subject;
cert.NotBefore = startDate;
cert.NotAfter = endDate;
cert.X509Extensions.Add((CX509Extension)ekuext);
cert.Encode();
// Enroll the certificate
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert);
string certData = enroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64HEADER);
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate,
certData, EncodingType.XCN_CRYPT_STRING_BASE64HEADER, String.Empty);
var base64encoded = enroll.CreatePFX(password, PFXExportOptions.PFXExportChainWithRoot);
// Instantiate the target class with the PKCS#12 data
return(new X509Certificate2(
System.Convert.FromBase64String(base64encoded), password,
System.Security.Cryptography.X509Certificates.X509KeyStorageFlags.Exportable));
}
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);
}
private X509Certificate2 CreateNewCertificate(CX509CertificateRequestCertificate cert)
{
var enr = new CX509Enrollment
{
CertificateFriendlyName = FriendlyName
};
enr.InitializeFromRequest(cert);
string endCert = enr.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64);
enr.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate, endCert, EncodingType.XCN_CRYPT_STRING_BASE64, string.Empty);
byte[] certBytes = Convert.FromBase64String(endCert);
return(new X509Certificate2(certBytes));
}
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);
}
/// <summary>
/// Creates a certificate request with the given name.
/// </summary>
/// <param name="name"></param>
public void CreateCertificateRequest(String name)
{
try
{
// Initialize cryptographic provider
objCSP.InitializeFromName(this.CryptographicProviderName);
objCSPs.Add(objCSP);
// Set CX509PrivateKey values and create
objPrivateKey.CspInformations = objCSPs;
objPrivateKey.Length = this.KeySize;
objPrivateKey.KeySpec = this.KeySpec;
objPrivateKey.KeyUsage = this.KeyUsage;
objPrivateKey.MachineContext = this.MachineContext;
objPrivateKey.ExportPolicy = this.ExportPolicy;
objPrivateKey.Create();
// Initalize CX509CertificateRequestCertificate.
objCertRequest.InitializeFromPrivateKey(this.EnrollmentContextMachine, objPrivateKey, "");
objObjectId.InitializeFromAlgorithmName(this.ObjectIdGroupId,
this.ObjectIdPublicKeyFlags,
this.AlgorithmFlags, this.AlgorithmName);
// Add the name passed in
objDN.Encode(
"CN=" + name,
X500NameFlags.XCN_CERT_NAME_STR_NONE
);
objCertRequest.Subject = objDN;
objCertRequest.Issuer = objDN;
objCertRequest.HashAlgorithm = objObjectId;
objCertRequest.NotBefore = DateTime.Now;
objCertRequest.NotAfter = DateTime.Now + (DateTime.Now.Date.AddDays(this.ExpirationLengthInDays) - DateTime.Now.Date);
objEnroll.InitializeFromRequest(objCertRequest);
objEnroll.CertificateFriendlyName = this.FriendlyName;
stringResponse = objEnroll.CreateRequest(this.EncodingType);
}
catch (Exception ex)
{
throw ex;
}
}
//rennew certficiate that expired
public int RenewCert(string Cert, int reqid)
{
int iDisposition;
string CertifcateStr;
string status;
string HostName;
CX509CertificateRequestPkcs10 objPkcs10 = new CX509CertificateRequestPkcs10();
CX509Enrollment objEnroll = new CX509Enrollment();
CCertConfig objCertConfig = new CCertConfig();
CX500DistinguishedName objDN = new CX500DistinguishedName();
CCertAdmin objCertAdmin = new CCertAdmin();
string strCAConfig;
var inheritOptions = X509RequestInheritOptions.InheritPrivateKey | X509RequestInheritOptions.InheritSubjectFlag | X509RequestInheritOptions.InheritExtensionsFlag | X509RequestInheritOptions.InheritSubjectAltNameFlag;
try
{
strCAConfig = objCertConfig.GetConfig(CC_DEFAULTCONFIG); //connect to the ca
InstallCert(Cert);
objPkcs10.InitializeFromCertificate(X509CertificateEnrollmentContext.ContextUser, Cert, EncodingType.XCN_CRYPT_STRING_BASE64HEADER, inheritOptions); //create new cert request from exists expired cert
objDN = objPkcs10.Subject; //getting old cert subject (hostname)
HostName = objDN.Name.ToString().Substring(3);
objEnroll.InitializeFromRequest(objPkcs10); //create enroll rquest
CertifcateStr = objEnroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64); //crearte new cert request
Database db = new Database();
var cert = db.ReturnCertificateInformation(HostName);
db.DeleteCertificateRecordFromDb(reqid);
// revokeCert(cert.serialnumber);
iDisposition = SubmitRequest(CertifcateStr, HostName); //submit cert to the ca
objCertAdmin.ResubmitRequest(strCAConfig, iDisposition); //issue the Certificate
if (iDisposition > 0) //if cert was created delete the old cert from the table
{
DeleteCertificateFromStore(objDN.Name.ToString());
return(iDisposition);
}
return(0);
}
catch (Exception ex)
{
status = ex.Message;
Database db = new Database();
db.InsertToErrorMessageTable("", reqid, ex.Message, "RenewCert");//insert Error Message into The Error Table Log In The DataBase
return(1);
}
}
public virtual string CreateRequest()
{
Trace.TraceInformation(Resources.CertificateCreateRequest);
if (Request == null)
{
Trace.TraceError(Resources.CertificateCreateRequestNull);
throw new InvalidOperationException(Resources.CertificateCreateRequestNull);
}
var enrollment =
new CX509Enrollment();
enrollment.InitializeFromRequest(Request);
var request =
enrollment.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64REQUESTHEADER);
return(request);
}
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);
}
}
/// <summary>
/// Generates a certificate signing request for use with Xbox Live.
/// </summary>
public string GenerateCertRequest()
{
this.EnsureAdmin();
CX509CertificateRequestCertificate certRequest = new CX509CertificateRequestCertificate();
certRequest.Initialize(X509CertificateEnrollmentContext.ContextMachine);
certRequest.PrivateKey.Length = 2048;
certRequest.PrivateKey.ProviderName = "Microsoft Enhanced RSA and AES Cryptographic Provider";
certRequest.PrivateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG;
CX500DistinguishedName subject = new CX500DistinguishedName();
subject.Encode("CN=NOT USED");
certRequest.Subject = subject;
CX509Enrollment enroll = new CX509Enrollment();
enroll.InitializeFromRequest(certRequest);
enroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64HEADER);
this.privateKey = certRequest.PrivateKey.Export("PRIVATEBLOB", EncodingType.XCN_CRYPT_STRING_BASE64).ToSecureString();
return(certRequest.PrivateKey.Export("PUBLICBLOB", EncodingType.XCN_CRYPT_STRING_BASE64 | EncodingType.XCN_CRYPT_STRING_NOCRLF));
}
private static StoreName store = StoreName.My; // Store as a personal certificate
private static X509Certificate2 CreateSelfSignedCertificate(string Operator, string SiteId, int SeqNo, bool isServerCert, string SAN)
{
// Create a custom subject name & friendly name
string distName = $"CN={FriendlyName.ToLower()}_{SiteId}_{SeqNo}, OU={Operator}_{SiteId}, O={Operator}, C=GB";
// create DN for subject and issuer
// var dn = new X500DistinguishedName(distName);
// dn.Encode(distName, X500NameFlags.XCN_CERT_NAME_STR_NONE);
var dn = new CX500DistinguishedName();
dn.Encode(distName, X500NameFlags.XCN_CERT_NAME_STR_NONE);
// create a new private key for the certificate
//CX509PrivateKey privateKey = new CX509PrivateKey();
//var privateKey = new CX509PrivateKey();
var typeName = "X509Enrollment.CX509PrivateKey";
var type = Type.GetTypeFromProgID(typeName);
if (type == null)
{
throw new Exception(typeName + " is not available on your system: 0x80040154 (REGDB_E_CLASSNOTREG)");
}
var privateKey = Activator.CreateInstance(type) as IX509PrivateKey;
if (privateKey == null)
{
throw new Exception("Your certlib does not know an implementation of " + typeName +
" (in HKLM:\\SOFTWARE\\Classes\\Interface\\)!");
}
privateKey.ProviderName = "Microsoft Base Cryptographic Provider v1.0";
privateKey.MachineContext = true;
privateKey.Length = 2048;
privateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE; // use is not limited
// privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG;
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG;
privateKey.Create();
// Use the stronger SHA512 hashing algorithm
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
AlgorithmFlags.AlgorithmFlagsNone, "SHA512");
// add extended key usage if you want - look at MSDN for a list of possible OIDs
var oid = new CObjectId();
// oid.InitializeFromValue("1.3.6.1.5.5.7.3.1"); // SSL server
if (isServerCert)
{
oid.InitializeFromValue("1.3.6.1.5.5.7.3.1"); // SSL Server
}
else
{
oid.InitializeFromValue("1.3.6.1.5.5.7.3.2"); // SSL client
}
var oidlist = new CObjectIds();
oidlist.Add(oid);
var eku = new CX509ExtensionEnhancedKeyUsage();
eku.InitializeEncode(oidlist);
// Create the self signing request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, "");
if (!string.IsNullOrEmpty(SAN))
{
CAlternativeName objRfc822Name = new CAlternativeName();
CAlternativeNames objAlternativeNames = new CAlternativeNames();
CX509ExtensionAlternativeNames objExtensionAlternativeNames = new CX509ExtensionAlternativeNames();
// Set Alternative RFC822 Name
objRfc822Name.InitializeFromString(AlternativeNameType.XCN_CERT_ALT_NAME_DNS_NAME, SAN);
// Set Alternative Names
objAlternativeNames.Add(objRfc822Name);
objExtensionAlternativeNames.InitializeEncode(objAlternativeNames);
cert.X509Extensions.Add((CX509Extension)objExtensionAlternativeNames);
}
cert.Subject = dn;
cert.Issuer = dn; // the issuer and the subject are the same
cert.NotBefore = DateTime.Today;
cert.NotAfter = DateTime.Today.AddYears(10); // expire in 10 years time
cert.X509Extensions.Add((CX509Extension)eku); // add the EKU
cert.HashAlgorithm = hashobj; // Specify the hashing algorithm
cert.Encode(); // encode the certificate
// Do the final enrollment process
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert); // load the certificate
enroll.CertificateFriendlyName = FriendlyName; // Optional: add a friendly name
string csr = enroll.CreateRequest(); // Output the request in base64
// and install it back as the response
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate,
csr, EncodingType.XCN_CRYPT_STRING_BASE64, ""); // no password
// output a base64 encoded PKCS#12 so we can import it back to the .Net security classes
var base64encoded = enroll.CreatePFX("", // no password, this is for internal consumption
PFXExportOptions.PFXExportChainWithRoot);
// instantiate the target class with the PKCS#12 data (and the empty password)
X509Certificate2 newCert = new X509Certificate2(System.Convert.FromBase64String(base64encoded), "",
// mark the private key as exportable (this is usually what you want to do)
System.Security.Cryptography.X509Certificates.X509KeyStorageFlags.Exportable
// Ensure the machine key is created and retained
// http://stackoverflow.com/questions/425688/how-to-set-read-permission-on-the-private-key-file-of-x-509-certificate-from-ne
| X509KeyStorageFlags.MachineKeySet | X509KeyStorageFlags.PersistKeySet);
return(newCert);
}
public static X509Certificate2 CreateCertificate(string certSubject, bool isCA)
{
string CAsubject = certSubject;
CX500DistinguishedName dn = new CX500DistinguishedName();
dn.Encode("CN=" + CAsubject, X500NameFlags.XCN_CERT_NAME_STR_NONE);
string strRfc822Name = certSubject;
CAlternativeName objRfc822Name = new CAlternativeName();
CAlternativeNames objAlternativeNames = new CAlternativeNames();
CX509ExtensionAlternativeNames objExtensionAlternativeNames = new CX509ExtensionAlternativeNames();
// Set Alternative RFC822 Name
objRfc822Name.InitializeFromString(AlternativeNameType.XCN_CERT_ALT_NAME_DNS_NAME, strRfc822Name);
// Set Alternative Names
objAlternativeNames.Add(objRfc822Name);
objExtensionAlternativeNames.InitializeEncode(objAlternativeNames);
//objPkcs10.X509Extensions.Add((CX509Extension)objExtensionAlternativeNames);
//Issuer Property for cleanup
string issuer = "__Interceptor_Trusted_Root";
CX500DistinguishedName issuerdn = new CX500DistinguishedName();
issuerdn.Encode("CN=" + issuer, X500NameFlags.XCN_CERT_NAME_STR_NONE);
// Create a new Private Key
CX509PrivateKey key = new CX509PrivateKey();
key.ProviderName = "Microsoft Enhanced RSA and AES Cryptographic Provider"; //"Microsoft Enhanced Cryptographic Provider v1.0"
// Set CAcert to 1 to be used for Signature
if (isCA)
{
key.KeySpec = X509KeySpec.XCN_AT_SIGNATURE;
}
else
{
key.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE;
}
key.Length = 2048;
key.MachineContext = true;
key.Create();
// Create Attributes
//var serverauthoid = new X509Enrollment.CObjectId();
CObjectId serverauthoid = new CObjectId();
serverauthoid.InitializeFromValue("1.3.6.1.5.5.7.3.1");
CObjectIds ekuoids = new CObjectIds();
ekuoids.Add(serverauthoid);
CX509ExtensionEnhancedKeyUsage ekuext = new CX509ExtensionEnhancedKeyUsage();
ekuext.InitializeEncode(ekuoids);
CX509CertificateRequestCertificate cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, key, "");
cert.Subject = dn;
cert.Issuer = issuerdn;
cert.NotBefore = (DateTime.Now).AddDays(-1); //Backup One day to Avoid Timing Issues
cert.NotAfter = cert.NotBefore.AddDays(90); //Arbitrary... Change to persist longer...
//Use Sha256
CObjectId hashAlgorithmObject = new CObjectId();
hashAlgorithmObject.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID, 0, 0, "SHA256");
cert.HashAlgorithm = hashAlgorithmObject;
cert.X509Extensions.Add((CX509Extension)ekuext);
cert.X509Extensions.Add((CX509Extension)objExtensionAlternativeNames);
//https://blogs.msdn.microsoft.com/alejacma/2011/11/07/how-to-add-subject-alternative-name-to-your-certificate-requests-c/
if (isCA)
{
CX509ExtensionBasicConstraints basicConst = new CX509ExtensionBasicConstraints();
basicConst.InitializeEncode(true, 1);
cert.X509Extensions.Add((CX509Extension)basicConst);
}
else
{
var store = new X509Store(StoreName.My, StoreLocation.LocalMachine);
store.Open(OpenFlags.ReadOnly);
X509Certificate2Collection signer = store.Certificates.Find(X509FindType.FindBySubjectName, "__Interceptor_Trusted_Root", false);
CSignerCertificate signerCertificate = new CSignerCertificate();
signerCertificate.Initialize(true, 0, EncodingType.XCN_CRYPT_STRING_HEX, signer[0].Thumbprint);
cert.SignerCertificate = signerCertificate;
}
cert.Encode();
CX509Enrollment enrollment = new CX509Enrollment();
enrollment.InitializeFromRequest(cert);
string certdata = enrollment.CreateRequest(0);
enrollment.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate, certdata, 0, "");
if (isCA)
{
//Install CA Root Certificate
X509Store store = new X509Store(StoreName.My, StoreLocation.LocalMachine);
store.Open(OpenFlags.ReadOnly);
X509Certificate2Collection certList = store.Certificates.Find(X509FindType.FindBySubjectName, "__Interceptor_Trusted_Root", false);
store.Close();
X509Store rootStore = new X509Store(StoreName.Root, StoreLocation.LocalMachine);
rootStore.Open(OpenFlags.ReadWrite);
X509Certificate2Collection rootcertList = rootStore.Certificates.Find(X509FindType.FindBySubjectName, "__Interceptor_Trusted_Root", false);
rootStore.Add(certList[0]);
rootStore.Close();
return(certList[0]);
}
else
{
//Return Per Domain Cert
X509Store xstore = new X509Store(StoreName.My, StoreLocation.LocalMachine);
xstore.Open(OpenFlags.ReadOnly);
X509Certificate2Collection certList = xstore.Certificates.Find(X509FindType.FindBySubjectName, certSubject, false);
xstore.Close();
return(certList[0]);
}
}
private static string CreateCertContent(string cn, TimeSpan expirationLength, string pwd)
{
var base64encoded = string.Empty;
var dn = new CX500DistinguishedName();
dn.Encode("CN=" + cn, X500NameFlags.XCN_CERT_NAME_STR_NONE);
var privateKey = new CX509PrivateKey();
privateKey.ProviderName = "Microsoft Strong Cryptographic Provider";
privateKey.Length = 2048;
privateKey.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE;
privateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_DECRYPT_FLAG |
X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_KEY_AGREEMENT_FLAG;
privateKey.MachineContext = true;
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG;
privateKey.Create();
// Use the stronger SHA512 hashing algorithm
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
AlgorithmFlags.AlgorithmFlagsNone, "SHA256");
// Create the self signing request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, "");
cert.Subject = dn;
cert.Issuer = dn; // the issuer and the subject are the same
cert.NotBefore = DateTime.Now.Date;
// this cert expires immediately. Change to whatever makes sense for you
cert.NotAfter = cert.NotBefore + expirationLength;
cert.HashAlgorithm = hashobj; // Specify the hashing algorithm
cert.Encode(); // encode the certificate
// Do the final enrollment process
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert); // load the certificate
enroll.CertificateFriendlyName = cn; // Optional: add a friendly name
var csr = enroll.CreateRequest(); // Output the request in base64
// and install it back as the response
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate,
csr, EncodingType.XCN_CRYPT_STRING_BASE64, pwd); // no password
// output a base64 encoded PKCS#12 so we can import it back to the .Net security classes
base64encoded = enroll.CreatePFX(pwd, // no password, this is for internal consumption
PFXExportOptions.PFXExportChainWithRoot);
return base64encoded;
}
// https://github.com/asafga-gsr-it/CertIntegration/blob/master/CertificateAdmin/CertificateAdmin/obj/Release/Package/PackageTmp/Certificate.cs
// https://www.sysadmins.lv/blog-en/introducing-to-certificate-enrollment-apis-part-2-creating-offline-requests.aspx
/*
* public static X509Certificate2 CreateSelfSignedCA(string subjectName, DateTime notAfterUtc, bool machineContext)
* {
* // create DN for subject and issuer
* var dn = new CX500DistinguishedName();
* dn.Encode("CN=" + EscapeDNComponent(subjectName), X500NameFlags.XCN_CERT_NAME_STR_NONE);
*
* // create a new private key for the certificate
* CX509PrivateKey privateKey = new CX509PrivateKey();
* privateKey.ProviderName = "Microsoft Base Cryptographic Provider v1.0";
* privateKey.MachineContext = machineContext;
* privateKey.Length = 2048;
* privateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE; // use is not limited
* privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG;
* privateKey.Create();
*
* var hashobj = new CObjectId();
* hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
* ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
* AlgorithmFlags.AlgorithmFlagsNone, "SHA256"); // https://docs.microsoft.com/en-us/windows/win32/seccng/cng-algorithm-identifiers
*
* CX509ExtensionKeyUsage keyUsage = new CX509ExtensionKeyUsage();
* keyUsage.InitializeEncode(
* CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_DIGITAL_SIGNATURE_KEY_USAGE |
* CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_KEY_CERT_SIGN_KEY_USAGE |
* CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_CRL_SIGN_KEY_USAGE |
* CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_OFFLINE_CRL_SIGN_KEY_USAGE);
*
* CX509ExtensionBasicConstraints bc = new CX509ExtensionBasicConstraints();
* bc.InitializeEncode(true, -1); // None
* bc.Critical = true;
*
* // add extended key usage if you want - look at MSDN for a list of possible OIDs
* var oid = new CObjectId();
* oid.InitializeFromValue("1.3.6.1.5.5.7.3.1"); // Server Authentication
* var oidlist = new CObjectIds();
* oidlist.Add(oid);
* var eku = new CX509ExtensionEnhancedKeyUsage();
* eku.InitializeEncode(oidlist);
*
* // Create the self signing request
* var cert = new CX509CertificateRequestCertificate();
*
* cert.InitializeFromPrivateKey(machineContext ? X509CertificateEnrollmentContext.ContextMachine: X509CertificateEnrollmentContext.ContextUser, privateKey, "");
* cert.Subject = cert.Issuer = dn; // the issuer and the subject are the same
* cert.NotBefore = DateTime.UtcNow.AddDays(-1);
* cert.NotAfter = notAfterUtc;
* cert.X509Extensions.Add((CX509Extension)keyUsage);
* cert.X509Extensions.Add((CX509Extension)eku); // add the EKU
* cert.X509Extensions.Add((CX509Extension)bc);
* cert.HashAlgorithm = hashobj; // Specify the hashing algorithm
* cert.Encode(); // encode the certificate
*
* // Do the final enrollment process
* var enroll = new CX509Enrollment();
* enroll.InitializeFromRequest(cert); // load the certificate
* enroll.CertificateFriendlyName = subjectName; // Optional: add a friendly name
* string csr = enroll.CreateRequest(); // Output the request in base64
*
* // install to MY store
* enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate, csr, EncodingType.XCN_CRYPT_STRING_BASE64, ""); // no password
*
* // output a base64 encoded PKCS#12 so we can import it back to the .Net security classes
* var base64encoded = enroll.CreatePFX("", // no password, this is for internal consumption
* PFXExportOptions.PFXExportChainWithRoot);
*
* // instantiate the target class with the PKCS#12 data (and the empty password)
* var x509Certificate2 = new X509Certificate2(
* System.Convert.FromBase64String(base64encoded), "",
* // mark the private key as exportable (this is usually what you want to do)
* X509KeyStorageFlags.Exportable
* );
*
* X509Store rootStore = null;
* try
* {
* rootStore = new X509Store(StoreName.Root, machineContext ? StoreLocation.LocalMachine : StoreLocation.CurrentUser);
* rootStore.Open(OpenFlags.ReadWrite);
* // install to CA store
* var crtPub = new X509Certificate2(x509Certificate2) { PrivateKey = null };
* rootStore.Add(crtPub);
* crtPub.Reset();
* }
* catch
* {
* // ignore when adding to trust root failed
* }
* finally
* {
* rootStore?.Close();
* }
*
* return x509Certificate2;
* }
*/
public static X509Certificate2 CreateCertificate(string subjectName, string hostname, DateTime notAfterUtc, X509Certificate issuer, bool machineContext)
{
CSignerCertificate signerCertificate = new CSignerCertificate();
signerCertificate.Initialize(false, X509PrivateKeyVerify.VerifyNone, EncodingType.XCN_CRYPT_STRING_HEX, issuer.GetRawCertDataString());
// create DN for subject and issuer
var dn = new CX500DistinguishedName();
dn.Encode("CN=" + EscapeDNComponent(subjectName), X500NameFlags.XCN_CERT_NAME_STR_NONE);
// create a new private key for the certificate
CX509PrivateKey privateKey = new CX509PrivateKey();
privateKey.ProviderName = "Microsoft Base Cryptographic Provider v1.0";
privateKey.MachineContext = machineContext;
privateKey.Length = 2048;
privateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE; // use is not limited
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG;
privateKey.Create();
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
AlgorithmFlags.AlgorithmFlagsNone, "SHA256");
CX509ExtensionKeyUsage keyUsage = new CX509ExtensionKeyUsage();
keyUsage.InitializeEncode(
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_DATA_ENCIPHERMENT_KEY_USAGE |
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_KEY_ENCIPHERMENT_KEY_USAGE |
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_DIGITAL_SIGNATURE_KEY_USAGE);
CX509ExtensionBasicConstraints bc = new CX509ExtensionBasicConstraints();
bc.InitializeEncode(false, 0);
bc.Critical = false;
// SAN
CX509ExtensionAlternativeNames san = null;
if (!string.IsNullOrEmpty(hostname))
{
CAlternativeNames ians;
if (IPAddress.TryParse(hostname, out var ip))
{
var ian = new CAlternativeName();
ian.InitializeFromRawData(AlternativeNameType.XCN_CERT_ALT_NAME_IP_ADDRESS, EncodingType.XCN_CRYPT_STRING_BASE64, Convert.ToBase64String(ip.GetAddressBytes()));
ians = new CAlternativeNames {
ian
};
}
else
{
var ian = new CAlternativeName();
ian.InitializeFromString(AlternativeNameType.XCN_CERT_ALT_NAME_DNS_NAME, hostname);
var ianStar = new CAlternativeName();
ianStar.InitializeFromString(AlternativeNameType.XCN_CERT_ALT_NAME_DNS_NAME, "*." + hostname); // wildcard
ians = new CAlternativeNames {
ian, ianStar
};
}
san = new CX509ExtensionAlternativeNames();
san.InitializeEncode(ians);
}
// add extended key usage if you want - look at MSDN for a list of possible OIDs
var oid = new CObjectId();
oid.InitializeFromValue("1.3.6.1.5.5.7.3.1"); // SSL server
var oidlist = new CObjectIds();
oidlist.Add(oid);
var eku = new CX509ExtensionEnhancedKeyUsage();
eku.InitializeEncode(oidlist);
var dnIssuer = new CX500DistinguishedName();
dnIssuer.Encode(issuer.Subject, X500NameFlags.XCN_CERT_NAME_STR_NONE);
// Create the self signing request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(machineContext ? X509CertificateEnrollmentContext.ContextMachine : X509CertificateEnrollmentContext.ContextUser, privateKey, "");
cert.Subject = dn;
cert.Issuer = dnIssuer;
cert.SignerCertificate = signerCertificate;
cert.NotBefore = DateTime.UtcNow.AddDays(-1);
cert.NotAfter = notAfterUtc;
cert.X509Extensions.Add((CX509Extension)keyUsage);
cert.X509Extensions.Add((CX509Extension)eku); // EnhancedKeyUsage
cert.X509Extensions.Add((CX509Extension)bc); // ExtensionBasicConstraints
if (san != null)
{
cert.X509Extensions.Add((CX509Extension)san); // SAN
}
cert.HashAlgorithm = hashobj; // Specify the hashing algorithm
cert.Encode(); // encode the certificate
// Do the final enrollment process
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert); // load the certificate
//enroll.CertificateFriendlyName = subjectName; // Optional: add a friendly name
string csr = enroll.CreateRequest(); // Output the request in base64
// and install it back as the response
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate, csr, EncodingType.XCN_CRYPT_STRING_BASE64, ""); // no password
// output a base64 encoded PKCS#12 so we can import it back to the .Net security classes
var base64encoded = enroll.CreatePFX("", // no password, this is for internal consumption
PFXExportOptions.PFXExportChainWithRoot);
// instantiate the target class with the PKCS#12 data (and the empty password)
var x509Certificate2 = new X509Certificate2(
Convert.FromBase64String(base64encoded), "",
X509KeyStorageFlags.Exportable); // mark the private key as exportable (this is usually what you want to do)
return(x509Certificate2);
}
// 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 static X509Certificate2 CreateCertificate(Certificate crt)
{
bool isCA = !crt.SignByCertificateAuthority;
// create DN for subject and issuer
var dn = new CX500DistinguishedName();
dn.Encode(GetEncodedDistinguishedName(crt), X500NameFlags.XCN_CERT_NAME_STR_NONE);
// create a new private key for the certificate
CX509PrivateKey privateKey = new CX509PrivateKey
{
ProviderName = "Microsoft Base Cryptographic Provider v1.0",
MachineContext = crt.MachineContext,
Length = crt.KeyLength,
KeySpec = X509KeySpec.XCN_AT_SIGNATURE, // use is not limited
ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG
};
privateKey.Create();
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
AlgorithmFlags.AlgorithmFlagsNone, crt.DigestAlgorithm);
CERTENROLLLib.X509KeyUsageFlags x509KeyUsageFlags;
CX509ExtensionBasicConstraints bc = new CX509ExtensionBasicConstraints();
if (isCA)
{
x509KeyUsageFlags =
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_DIGITAL_SIGNATURE_KEY_USAGE |
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_KEY_CERT_SIGN_KEY_USAGE |
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_CRL_SIGN_KEY_USAGE |
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_OFFLINE_CRL_SIGN_KEY_USAGE;
bc.InitializeEncode(true, -1);
bc.Critical = true;
}
else
{
x509KeyUsageFlags =
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_KEY_ENCIPHERMENT_KEY_USAGE |
CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_DIGITAL_SIGNATURE_KEY_USAGE;
if (crt.CertificateType == CertificateType.ClientCertificate)
{
x509KeyUsageFlags |= CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_NON_REPUDIATION_KEY_USAGE;
}
if (crt.CertificateType == CertificateType.ServerCertificate)
{
x509KeyUsageFlags |= CERTENROLLLib.X509KeyUsageFlags.XCN_CERT_NON_REPUDIATION_KEY_USAGE;
}
bc.InitializeEncode(false, -1);
bc.Critical = false;
}
CX509ExtensionKeyUsage keyUsage = new CX509ExtensionKeyUsage();
keyUsage.InitializeEncode(x509KeyUsageFlags);
keyUsage.Critical = false;
// SAN
var canList = new List <CAlternativeName>();
foreach (var sanItem in crt.SANList)
{
if (!string.IsNullOrWhiteSpace(sanItem.Value))
{
var can = new CAlternativeName();
switch (sanItem.Type)
{
case Certificate.SANType.DNS:
can.InitializeFromString(AlternativeNameType.XCN_CERT_ALT_NAME_DNS_NAME, sanItem.Value);
break;
case Certificate.SANType.IP:
can.InitializeFromRawData(AlternativeNameType.XCN_CERT_ALT_NAME_IP_ADDRESS, EncodingType.XCN_CRYPT_STRING_BASE64,
Convert.ToBase64String(IPAddress.Parse(sanItem.Value).GetAddressBytes()));
break;
case Certificate.SANType.URI:
can.InitializeFromString(AlternativeNameType.XCN_CERT_ALT_NAME_URL, sanItem.Value);
break;
case Certificate.SANType.email:
can.InitializeFromString(AlternativeNameType.XCN_CERT_ALT_NAME_RFC822_NAME, sanItem.Value);
break;
}
canList.Add(can);
}
}
CX509ExtensionAlternativeNames san = null;
if (canList.Any())
{
san = new CX509ExtensionAlternativeNames();
var cans = new CAlternativeNames();
foreach (var item in canList)
{
cans.Add(item);
}
san.InitializeEncode(cans);
}
CX509ExtensionEnhancedKeyUsage eku = null;
if (crt.CertificateType != CertificateType.None)
{
const string XCN_OID_PKIX_KP_SERVER_AUTH = "1.3.6.1.5.5.7.3.1";
const string XCN_OID_PKIX_KP_CLIENT_AUTH = "1.3.6.1.5.5.7.3.2";
var oid = new CObjectId();
if (crt.CertificateType == CertificateType.ServerCertificate)
{
oid.InitializeFromValue(XCN_OID_PKIX_KP_SERVER_AUTH);
}
if (crt.CertificateType == CertificateType.ClientCertificate)
{
oid.InitializeFromValue(XCN_OID_PKIX_KP_CLIENT_AUTH);
}
var oidlist = new CObjectIds();
oidlist.Add(oid);
eku = new CX509ExtensionEnhancedKeyUsage();
eku.InitializeEncode(oidlist);
}
// Create the self signing request
var cereq = new CX509CertificateRequestCertificate();
cereq.InitializeFromPrivateKey(crt.MachineContext ? X509CertificateEnrollmentContext.ContextMachine : X509CertificateEnrollmentContext.ContextUser, privateKey, "");
cereq.Subject = dn;
cereq.Issuer = dn;
cereq.NotBefore = DateTime.UtcNow.AddDays(-1);
cereq.NotAfter = DateTime.UtcNow.AddDays(crt.Lifetime.Value);
if (crt.SignByCertificateAuthority)
{
var issuer = MyCurrentUserX509Store.Certificates
.Find(X509FindType.FindByThumbprint, crt.CertificateAuthority, false)
.OfType <X509Certificate2>()
.Where(c => c.HasPrivateKey).FirstOrDefault() ?? throw new Exception("Issuer not found: " + crt.CertificateAuthority);
cereq.SignerCertificate = new CSignerCertificate();
cereq.SignerCertificate.Initialize(false, X509PrivateKeyVerify.VerifyNone, EncodingType.XCN_CRYPT_STRING_HEX, issuer.GetRawCertDataString());
cereq.Issuer = new CX500DistinguishedName();
cereq.Issuer.Encode(issuer.Subject, X500NameFlags.XCN_CERT_NAME_STR_NONE);
}
cereq.X509Extensions.Add((CX509Extension)keyUsage);
if (eku != null)
{
cereq.X509Extensions.Add((CX509Extension)eku); // EnhancedKeyUsage
}
if (bc != null)
{
cereq.X509Extensions.Add((CX509Extension)bc); // ExtensionBasicConstraints
}
if (san != null)
{
cereq.X509Extensions.Add((CX509Extension)san); // SAN
}
cereq.HashAlgorithm = hashobj; // Specify the hashing algorithm
cereq.Encode(); // encode the certificate
// Do the final enrollment process
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cereq); // load the certificate
//enroll.CertificateFriendlyName = subjectName; // Optional: add a friendly name
string csr = enroll.CreateRequest(); // Output the request in base64
// and install it back as the response
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate, csr, EncodingType.XCN_CRYPT_STRING_BASE64, ""); // no password
// output a base64 encoded PKCS#12 so we can import it back to the .Net security classes
var base64encoded = enroll.CreatePFX("", // no password, this is for internal consumption
PFXExportOptions.PFXExportChainWithRoot);
// instantiate the target class with the PKCS#12 data (and the empty password)
var x509Certificate2 = new X509Certificate2(
Convert.FromBase64String(base64encoded), "",
X509KeyStorageFlags.Exportable); // mark the private key as exportable (this is usually what you want to do)
if (isCA)
{
X509Store rootStore = null;
try
{
rootStore = new X509Store(StoreName.Root, crt.MachineContext ? StoreLocation.LocalMachine : StoreLocation.CurrentUser);
rootStore.Open(OpenFlags.ReadWrite);
// install to CA store
var crtPub = new X509Certificate2(x509Certificate2)
{
PrivateKey = null
};
rootStore.Add(crtPub);
crtPub.Reset();
}
catch
{
// ignore when adding to trust root failed
}
finally
{
rootStore?.Close();
}
}
crt.Value = x509Certificate2;
return(x509Certificate2);
}
/*
* http://stackoverflow.com/questions/13806299/how-to-create-a-self-signed-certificate-using-c
* This implementation uses the CX509CertificateRequestCertificate COM object (and friends - MSDN doc) from certenroll.dll to create a self signed certificate request and sign it.
*/
public static X509Certificate2 CreateSelfSignedCertificateCOM(string subjectName)
{
// create DN for subject and issuer
var dn = new CX500DistinguishedName();
dn.Encode("CN=" + subjectName, X500NameFlags.XCN_CERT_NAME_STR_NONE);
// create a new private key for the certificate
CX509PrivateKey privateKey = new CX509PrivateKey();
privateKey.ProviderName = "Microsoft Enhanced RSA and AES Cryptographic Provider";
privateKey.MachineContext = true;
privateKey.Length = 2048;
privateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE; // use is not limited
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG;
privateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_SIGNING_FLAG;
privateKey.Create();
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
AlgorithmFlags.AlgorithmFlagsNone, "SHA256");
// add extended key usage if you want - look at MSDN for a list of possible OIDs
//var oid = new CObjectId();
//oid.InitializeFromValue("1.3.6.1.5.5.7.3.1"); // SSL server
//var oidlist = new CObjectIds();
//oidlist.Add(oid);
//var eku = new CX509ExtensionEnhancedKeyUsage();
//eku.InitializeEncode(oidlist);
// Create the self signing request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, "");
cert.Subject = dn;
cert.Issuer = dn; // the issuer and the subject are the same
cert.NotBefore = DateTime.Now.Subtract(new TimeSpan(1, 0, 0, 0));
cert.NotAfter = DateTime.Now.Add(new TimeSpan(30,0,0,0));
//cert.X509Extensions.Add((CX509Extension)eku); // add the EKU
cert.HashAlgorithm = hashobj; // Specify the hashing algorithm
cert.Encode(); // encode the certificate
// Do the final enrollment process
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert); // load the certificate
enroll.CertificateFriendlyName = subjectName; // Optional: add a friendly name
string csr = enroll.CreateRequest(); // Output the request in base64
// and install it back as the response
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate,
csr, EncodingType.XCN_CRYPT_STRING_BASE64, ""); // no password
// output a base64 encoded PKCS#12 so we can import it back to the .Net security classes
var base64encoded = enroll.CreatePFX("", // no password, this is for internal consumption
PFXExportOptions.PFXExportChainWithRoot);
// instantiate the target class with the PKCS#12 data (and the empty password)
return new System.Security.Cryptography.X509Certificates.X509Certificate2(
System.Convert.FromBase64String(base64encoded), "",
// mark the private key as exportable (this is usually what you want to do)
System.Security.Cryptography.X509Certificates.X509KeyStorageFlags.Exportable
);
}
private static string CreateCertContent(string cn, TimeSpan expirationLength, string pwd)
{
string base64encoded = string.Empty;
var dn = new CERTENROLLLib.CX500DistinguishedName();
dn.Encode("CN=" + cn, X500NameFlags.XCN_CERT_NAME_STR_NONE);
CX509PrivateKey privateKey = new CX509PrivateKey();
privateKey.ProviderName = "Microsoft Strong Cryptographic Provider";
privateKey.Length = 2048;
privateKey.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE;
privateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_DECRYPT_FLAG |
X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_KEY_AGREEMENT_FLAG;
privateKey.MachineContext = true;
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG;
privateKey.Create();
// Use the stronger SHA512 hashing algorithm
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
AlgorithmFlags.AlgorithmFlagsNone, "SHA512");
// Create the self signing request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, "");
cert.Subject = dn;
cert.Issuer = dn; // the issuer and the subject are the same
cert.NotBefore = DateTime.Now.Date;
var objExtensionAlternativeNames = new CX509ExtensionAlternativeNames();
{
var altNames = new CAlternativeNames();
//var dnsHostname = new CAlternativeName();
//dnsHostname.InitializeFromString(AlternativeNameType.XCN_CERT_ALT_NAME_DNS_NAME, Environment.MachineName);
//altNames.Add(dnsHostname);
//foreach (var ipAddress in Dns.GetHostAddresses(Dns.GetHostName()))
//{
// if ((ipAddress.AddressFamily == AddressFamily.InterNetwork ||
// ipAddress.AddressFamily == AddressFamily.InterNetworkV6) && !IPAddress.IsLoopback(ipAddress))
// {
// var dns = new CAlternativeName();
// dns.InitializeFromString(AlternativeNameType.XCN_CERT_ALT_NAME_DNS_NAME, ipAddress.ToString());
// altNames.Add(dns);
// }
//}
var dns1 = new CAlternativeName();
dns1.InitializeFromString(AlternativeNameType.XCN_CERT_ALT_NAME_DNS_NAME, "localhost");
altNames.Add(dns1);
objExtensionAlternativeNames.InitializeEncode(altNames);
}
cert.X509Extensions.Add((CX509Extension)objExtensionAlternativeNames);
// this cert expires immediately. Change to whatever makes sense for you
cert.NotAfter = cert.NotBefore + expirationLength;
cert.HashAlgorithm = hashobj; // Specify the hashing algorithm
cert.Encode(); // encode the certificate
// Do the final enrollment process
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert); // load the certificate
enroll.CertificateFriendlyName = cn; // Optional: add a friendly name
string csr = enroll.CreateRequest(); // Output the request in base64
// and install it back as the response
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate,
csr, EncodingType.XCN_CRYPT_STRING_BASE64, pwd); // no password
// output a base64 encoded PKCS#12 so we can import it back to the .Net security classes
base64encoded = enroll.CreatePFX(pwd, // no password, this is for internal consumption
PFXExportOptions.PFXExportChainWithRoot);
return(base64encoded);
}
public static X509Certificate2 CreateSelfSignedCertificate(string subjectName)
{
var distinguishedName = new CX500DistinguishedName();
distinguishedName.Encode(
"CN=" + subjectName,
X500NameFlags.XCN_CERT_NAME_STR_NONE);
CCspInformations objCSPs = new CCspInformations();
CCspInformation objCSP = new CCspInformation();
objCSP.InitializeFromName(
"Microsoft Enhanced RSA and AES Cryptographic Provider");
objCSPs.Add(objCSP);
// Build the private key
CX509PrivateKey privateKey = new CX509PrivateKey();
privateKey.MachineContext = false;
privateKey.Length = 2048;
privateKey.CspInformations = objCSPs;
privateKey.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE;
privateKey.KeyUsage = X509PrivateKeyUsageFlags.XCN_NCRYPT_ALLOW_ALL_USAGES;
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG;
// Create the private key in the CSP's protected storage
privateKey.Create();
// Build the algorithm identifier
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(
ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
AlgorithmFlags.AlgorithmFlagsNone,
"SHA256");
// Create the self-signing request from the private key
var certificateRequest = new CX509CertificateRequestCertificate();
certificateRequest.InitializeFromPrivateKey(
X509CertificateEnrollmentContext.ContextUser,
privateKey,
string.Empty);
certificateRequest.Subject = distinguishedName;
certificateRequest.Issuer = distinguishedName;
certificateRequest.NotBefore = DateTime.Now.AddDays(-1);
certificateRequest.NotAfter = DateTime.Now.AddYears(100);
certificateRequest.HashAlgorithm = hashobj;
certificateRequest.Encode();
var enrollment = new CX509Enrollment();
// Load the certificate request
enrollment.InitializeFromRequest(certificateRequest);
enrollment.CertificateFriendlyName = subjectName;
// Output the request in base64 and install it back as the response
string csr = enrollment.CreateRequest();
// Install the response
enrollment.InstallResponse(
InstallResponseRestrictionFlags.AllowUntrustedCertificate,
csr,
EncodingType.XCN_CRYPT_STRING_BASE64,
string.Empty);
// Get the new certificate without the private key
byte[] certificateData = Convert.FromBase64String(enrollment.Certificate);
return(new X509Certificate2(certificateData));
}
static void Main(string[] args)
{
string requesterName = @"DOMAIN\otherUser";
string caName = @"CA1.DOMAIN.LOCAL\DOMAIN-CA1-CA";
string template = "User";
// signerCertificate's private key must be accessible to this process
var signerCertificate = FindCertificateByThumbprint("3f817d138f32a9a8df2aa6e43b8aed76eb93a932");
// create a new private key for the certificate
CX509PrivateKey privateKey = new CX509PrivateKey();
// http://blogs.technet.com/b/pki/archive/2009/08/05/how-to-create-a-web-server-ssl-certificate-manually.aspx
privateKey.ProviderName = "Microsoft Enhanced Cryptographic Provider v1.0";
privateKey.MachineContext = false;
privateKey.Length = 2048;
privateKey.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE;
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_NONE;
privateKey.Create();
// PKCS 10 Request
// we use v1 to avoid compat issues on w2k8
IX509CertificateRequestPkcs10 req = (IX509CertificateRequestPkcs10) new CX509CertificateRequestPkcs10();
req.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextUser, privateKey, template);
// PKCS 7 Wrapper
var signer = new CSignerCertificate();
signer.Initialize(false, X509PrivateKeyVerify.VerifyAllowUI, EncodingType.XCN_CRYPT_STRING_BASE64_ANY,
Convert.ToBase64String(signerCertificate.GetRawCertData()));
var wrapper = new CX509CertificateRequestPkcs7();
wrapper.InitializeFromInnerRequest(req);
wrapper.RequesterName = requesterName;
wrapper.SignerCertificate = signer;
// get CSR
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(wrapper);
var csr = enroll.CreateRequest();
//File.WriteAllText("csr.p7b", csr);
// submit
const int CR_IN_BASE64 = 1, CR_OUT_BASE64 = 1;
const int CR_IN_PKCS7 = 0x300;
ICertRequest2 liveCsr = new CCertRequest();
var disposition = (RequestDisposition)liveCsr.Submit(CR_IN_BASE64 | CR_IN_PKCS7, csr, null, caName);
if (disposition == RequestDisposition.CR_DISP_ISSUED)
{
string resp = liveCsr.GetCertificate(CR_OUT_BASE64);
//File.WriteAllText("resp.cer", resp);
// install the response
var install = new CX509Enrollment();
install.Initialize(X509CertificateEnrollmentContext.ContextUser);
install.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedRoot,
resp, EncodingType.XCN_CRYPT_STRING_BASE64_ANY, null);
}
else
{
Console.WriteLine("disp: " + disposition.ToString());
}
Console.WriteLine("done");
Console.ReadLine();
}
/// <summary>
/// Add Reference: COM > TypeLibraries > CertEnroll 1.0 Type Library
/// </summary>
/// <param name="subjectName"></param>
/// <returns></returns>
public static X509Certificate2 CreateSelfSignedCertificate(string subjectName, TimeSpan expiresIn)
{
// create DN for subject and issuer
var dn = new CX500DistinguishedName();
dn.Encode("CN=" + subjectName, X500NameFlags.XCN_CERT_NAME_STR_NONE);
// create a new private key for the certificate
CX509PrivateKey privateKey = new CX509PrivateKey();
privateKey.ProviderName = "Microsoft Base Cryptographic Provider v1.0";
privateKey.MachineContext = true;
privateKey.Length = 2048;
privateKey.KeySpec = X509KeySpec.XCN_AT_SIGNATURE; // use is not limited
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG;
privateKey.Create();
// Use the stronger SHA512 hashing algorithm
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
AlgorithmFlags.AlgorithmFlagsNone, "SHA512");
// add extended key usage if you want - look at MSDN for a list of possible OIDs
var oid = new CObjectId();
oid.InitializeFromValue("1.3.6.1.5.5.7.3.1"); // SSL server
var oidlist = new CObjectIds();
oidlist.Add(oid);
var eku = new CX509ExtensionEnhancedKeyUsage();
eku.InitializeEncode(oidlist);
// Create the self signing request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, "");
cert.Subject = dn;
cert.Issuer = dn; // the issuer and the subject are the same
cert.NotBefore = DateTime.Now;
// this cert expires immediately. Change to whatever makes sense for you
cert.NotAfter = DateTime.Now.Add(expiresIn);
cert.X509Extensions.Add((CX509Extension)eku); // add the EKU
cert.HashAlgorithm = hashobj; // Specify the hashing algorithm
cert.Encode(); // encode the certificate
// Do the final enrollment process
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert); // load the certificate
enroll.CertificateFriendlyName = subjectName; // Optional: add a friendly name
string csr = enroll.CreateRequest(); // Output the request in base64
// and install it back as the response
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate,
csr, EncodingType.XCN_CRYPT_STRING_BASE64, ""); // no password
// output a base64 encoded PKCS#12 so we can import it back to the .Net security classes
var base64encoded = enroll.CreatePFX("", // no password, this is for internal consumption
PFXExportOptions.PFXExportChainWithRoot);
// instantiate the target class with the PKCS#12 data (and the empty password)
return(new System.Security.Cryptography.X509Certificates.X509Certificate2(
System.Convert.FromBase64String(base64encoded), "",
// mark the private key as exportable (this is usually what you want to do)
System.Security.Cryptography.X509Certificates.X509KeyStorageFlags.Exportable
));
}
/// <summary>
/// Generate a self-signed certificate and add it to the Windows certificate store.
/// </summary>
/// <param name="subjectName">The subject name of the certificate.</param>
/// <param name="friendlyName">The friendly name of the certificate.</param>
/// <param name="location">Location of the certificate; either the Current User or Local Machine.</param>
/// <param name="addAsTrustedRoot">Whether to add the generated certificate as a trusted root.</param>
/// <param name="keyLength">Size of the key in bits.</param>
/// <param name="durationYears">Duration of the certificate, specified in years.</param>
/// <param name="oids">Collection of OIDs identifying certificate usage.</param>
public static X509Certificate2 CreateSelfSignedCertificate(string subjectName, string friendlyName, StoreLocation location, bool addAsTrustedRoot, int keyLength, int durationYears, List<string> oids)
{
// Create the self-signing request.
CX509CertificateRequestCertificate cert = CreateCertificateSigningRequest(subjectName, keyLength, durationYears, oids);
// Enroll based on the certificate signing request.
CX509Enrollment enrollment = new CX509Enrollment();
enrollment.InitializeFromRequest(cert);
enrollment.CertificateFriendlyName = friendlyName;
string csrText = enrollment.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64);
// Install the certificate chain. Note that no password is specified.
enrollment.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate, csrText, EncodingType.XCN_CRYPT_STRING_BASE64, "");
// Base-64 encode the PKCS#12 certificate in order to re-import it.
string pfx = enrollment.CreatePFX("", PFXExportOptions.PFXExportChainWithRoot);
// Instantiate the PKCS#12 certificate.
X509Certificate2 certificate = new X509Certificate2(System.Convert.FromBase64String(pfx), "", X509KeyStorageFlags.Exportable);
// If specified, also install the certificate to the trusted root store.
if (addAsTrustedRoot)
{
X509Store rootStore = new X509Store(StoreName.Root, location);
rootStore.Open(OpenFlags.ReadWrite);
rootStore.Add(certificate);
rootStore.Close();
}
return certificate;
}
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;
}
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>
/// CreateSelfSignedCertificate method implementation
/// </summary>
private static string InternalCreateSelfSignedCertificate(string subjectName, int years)
{
var dn = new CX500DistinguishedName();
var neos = new CX500DistinguishedName();
dn.Encode("CN=" + subjectName, X500NameFlags.XCN_CERT_NAME_STR_NONE);
neos.Encode("CN=MFA RSA Keys Certificate", X500NameFlags.XCN_CERT_NAME_STR_NONE);
CX509PrivateKey privateKey = new CX509PrivateKey();
privateKey.ProviderName = "Microsoft RSA SChannel Cryptographic Provider";
privateKey.MachineContext = true;
privateKey.Length = 2048;
privateKey.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE; // use is not limited
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG | X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG | X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_ARCHIVING_FLAG | X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_PLAINTEXT_ARCHIVING_FLAG;
privateKey.SecurityDescriptor = "D:PAI(A;;0xd01f01ff;;;SY)(A;;0xd01f01ff;;;BA)(A;;0x80120089;;;NS)";
privateKey.Create();
var hashobj = new CObjectId();
hashobj.InitializeFromAlgorithmName(ObjectIdGroupId.XCN_CRYPT_HASH_ALG_OID_GROUP_ID,
ObjectIdPublicKeyFlags.XCN_CRYPT_OID_INFO_PUBKEY_ANY,
AlgorithmFlags.AlgorithmFlagsNone, "SHA256");
var oid = new CObjectId();
oid.InitializeFromValue("1.3.6.1.5.5.7.3.1"); // SSL server
var oidlist = new CObjectIds();
oidlist.Add(oid);
var coid = new CObjectId();
coid.InitializeFromValue("1.3.6.1.5.5.7.3.2"); // Client auth
oidlist.Add(coid);
var eku = new CX509ExtensionEnhancedKeyUsage();
eku.InitializeEncode(oidlist);
// Create the self signing request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextAdministratorForceMachine, privateKey, "");
cert.Subject = dn;
cert.Issuer = neos;
cert.NotBefore = DateTime.Now.AddDays(-10);
cert.NotAfter = DateTime.Now.AddYears(years);
cert.X509Extensions.Add((CX509Extension)eku); // add the EKU
cert.HashAlgorithm = hashobj; // Specify the hashing algorithm
cert.Encode(); // encode the certificate
// Do the final enrollment process
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert); // load the certificate
enroll.CertificateFriendlyName = subjectName; // Optional: add a friendly name
string csr = enroll.CreateRequest(); // Output the request in base64
// and install it back as the response
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate, csr, EncodingType.XCN_CRYPT_STRING_BASE64, ""); // no password
// output a base64 encoded PKCS#12 so we can import it back to the .Net security classes
var base64encoded = enroll.CreatePFX("", PFXExportOptions.PFXExportChainWithRoot);
return(base64encoded);
}
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);
}
}