I have installed an x509 cert following these directions; http://www.vandyke.com/products/vshell/docs/windows/Use_X.509_Certificates.htm
This istalls it into the trusted root certification authorities store, AuthRoot.
When trying to find the cert;
open the store:X509Store store = new X509Store(StoreName.AuthRoot)
loop through, find one with X thumbprint. This works fine when it is installed into the trusted root cert auth store.
When I try to do the same but install it into the personal store, change opening the store to
X509Store store = new X509Store(StoreName.My) I can not find the cert.
Looking in the certmgr I can see it under personal->certificates.
Is there configuration required in IIS7 for personal cert? Could anyone help explain what I'm missing?
It's StoreName.Root, not StoreName.AuthRoot, for Trusted Root Certification Authorities.
For the personal store, you have to use the X509Store constructor with the StoreLocation parameter to use the Local Computer, Personal store, otherwise you are searching in the Current User, Personal store.
Try:
var store = new X509Store(StoreName.My, StoreLocation.LocalMachine);
Related
I have an SSL cert stored in the Web Hosting Folder of the Certificate Store. I cannot seem to be able to access this store from C#. Does anyone know how to do this?
X509Store store = new X509Store("Web Hosting");
store.Open(OpenFlags.ReadOnly);
var t = store.Certificates.GetEnumerator();
while (t.MoveNext())
{
//this is always empty
}
Additional Detail
I need this cert for a gRPC service that I am writing. gRPC requires a certificate for the SSL connection. In the mean time aka development I am using Let's Encrypt to generate the certificate. When the cert was generated the cert was put into the Web Hosting folder of the cert store.
It turns out you can drag and drop the certs to a different location in the cert manager. I relocated the cert to the Personal folder and I was able to access it by:
X509Store store = new X509Store(StoreLocation.LocalMachine);
store.Open(OpenFlags.ReadOnly);
Try removing the space; e.g., try the name as webhosting (no space)
In PowerShell, to display certs in this store location:
dir cert:\localmachine\webhosting
I hope I can explain this correctly. I inherited a couple of windows applications that need a certificate installed to the local cert store in order to access an Azure Key Vault's Secret to do what the applications do. Currently everything is working correctly. The cert in Azure is set to expire on 10/31/2019.
A new certificate has been created with an expiration in September of 2020.
When I had these applications dumped on me I was give the cert to use but it has a .p12 extension. I can only export the new Azure certificate as .cer or .pfx.
When I install the newly exported cert as either .pfx or .cer the applications fail. If I install the old cert with .p12 extension they work.
Both apps use the code below to get (I think) the local cert that is current via the "Issuer" which is CN = Value. I've checked both the old and new values of "Issuer/CN =" and they are identical.
Does the cert exported in Azure need to have a .p12 extension? If so how do I do that.
If the cert in Azure exported is okay as a .pfx where might my problem(s) be?
C# code in apps that get local cert to in turn gets the necessary Azure secret to do the work:
private static X509Certificate2 ReadCertificateFromStore(string certName)
{
X509Certificate2 cert = null;
try
{
using (X509Store store = new X509Store(StoreName.My, StoreLocation.CurrentUser))
{
store.Open(OpenFlags.ReadOnly);
X509Certificate2Collection certCollection = store.Certificates;
// Find unexpired certificates.
X509Certificate2Collection currentCerts = certCollection.Find(X509FindType.FindByTimeValid, DateTime.Now, false);
// From the collection of unexpired certificates, find the ones with the correct name.
X509Certificate2Collection signingCert = currentCerts.Find(X509FindType.FindBySubjectDistinguishedName, certName, false);
// Return the first certificate in the collection, has the right name and is current.
cert = signingCert.OfType<X509Certificate2>().OrderByDescending(c => c.NotBefore).FirstOrDefault();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return cert;
}
First .p12 as well as .pfx are extension for the PKCS#12 format.
Both apps use the code below to get (I think) the local cert that is current via the "Issuer" which is CN = Value. I've checked both the old and new values of "Issuer/CN =" and they are identical.
Based on your code that is not true
// From the collection of unexpired certificates, find the ones with the correct name.
X509Certificate2Collection signingCert =
currentCerts.Find(X509FindType.FindBySubjectDistinguishedName, certName, false);
It says FindBySubjectDistinguishedName which means that the subject of both certificates need to be exactly the same. Here is an example:
And another one with multiple elements in the subject:
You could also install both certificates and play around to figure the parameters to get the right certificate. I converted parts of your code to PowerShell:
$store =
new-object System.Security.Cryptography.X509Certificates.X509Store( `
[System.Security.Cryptography.X509Certificates.StoreName]::My, `
[System.Security.Cryptography.X509Certificates.StoreLocation]::CurrentUser);
$store.Open([System.Security.Cryptography.X509Certificates.OpenFlags]::ReadOnly);
$signingCert =
$store.Certificates.Find(
[System.Security.Cryptography.X509Certificates.X509FindType]::FindBySubjectDistinguishedName,
"CN=...", `
$false);
$signingCert
Mystery solved. In addition to installing the certificate on the machines in question you also need to register the cert (.cer portion) in Azure's App Registrations.
how can i install two certificates (pfx with password) during my setup is installing on pc? I need Two certificates located on personal->certificates because desktop program is used for all users on this pc.
I'm using .net 3.5
Thanks.
This below will extract the Public & Private key from the .PFX file and parse it into an X509Certificate2 object (X509Certificate type does not support Private keys and is unable understand V2 & V3 properties). You then pass X509Certificate2 object to the local certificate repository which is currently set to LocalMachine as I'm guessing that's where you want it according to the image you attached.
X509Certificate2 cert = new X509Certificate2(#"C:\key.pfx", "test1234", X509KeyStorageFlags.MachineKeySet | X509KeyStorageFlags.PersistKeySet); //Saves in the local machine store - accessible for all users
using (var store = new X509Store(StoreName.My, StoreLocation.LocalMachine))
{
store.Open(OpenFlags.ReadWrite); //Set to Write - You need Admin Permissions
store.Add(cert); //Add Private Cert to Store
}
I recommend that you read this post by Paul Stovell before diving head first as permissions could be nightmare especially within a domain environment (Active Directory).
I have a console application running on an Azure cloud service VM that need getting a management certificate.
My certificate is loaded on SETTINGS/CERTIFICATE but what should I do next?
I tried something like this:
X509Store certStore = new X509Store(StoreName.My, StoreLocation.LocalMachine);
certStore.Open(OpenFlags.OpenExistingOnly | OpenFlags.ReadOnly);
X509Certificate2Collection certCollection = certStore.Certificates
.Find(X509FindType.FindByThumbprint, certificateThumb, false);
X509Certificate2 certificate = certCollection[0];
Maybe I don't understand how works SETTINGS/CERTIFICATE but I only get an error message saying there are no certificate having this thumbprint.
EDIT: I complete my question.
Is this enough to make a declaration in SETTINGS/CERTIFICATE?
I answer my question.
In fact we have 2 way to use management certificate.
create a publishsetting file with the powershell command get-AzurePublishsettingsFile. The command adds a .cer certificate in management store as well. We just have to deserialize the base 64 certificate found into the file and add it in the credentials
create a certificate with makecert. Load the .cer in the azure management store and the .pfx in the local store from where the client application is installed
some links:
http://www.wadewegner.com/2011/11/programmatically-installing-and-using-your-management-certificate-with-the-new-publishsettings-file/
I am trying to add a certificate to a web request to connect to Azure services.
My code looks like this:
string certThumbprint = "thumbprint";
X509Store certStore = new X509Store(StoreName.My, StoreLocation.CurrentUser);
X509Certificate2Collection certCollection = certStore.Certificates.Find(
X509FindType.FindByThumbprint, certThumbprint, false);
Now I can confirm that the certificate does exist and the thumbprint is correct. However certCollection comes back empty.
Any ideas?
Update: here is how I open the cert store
certStore.Open(OpenFlags.ReadOnly);
You probably have a hidden character or two at the very beginning of your thumbprint. I've made this mistake many times before when copying the thumbprint from the certificate manager in MMC. Here is a link for more information on this issue.
http://support.microsoft.com/kb/2023835
A safe way to get the certificate thumbprints of the Personal Certificates store is to use an elevated instance of PowerShell.
PS C:\> dir cert:LocalMachine\My | select Thumbprint, FriendlyName, Subject
I encountered the same issue today, while it's possible that there are hidden characters before and after the thumbprint it's also possible that if your debugging runs under a different user, the StoreLocation.CurrentUser isn't the same Store as the one you open in Windows.
I had this issue running in Service Fabric on localhost