I have purchased an app service wildcard certificate and would like to import this cert into Azure Key vault for other purposes. Once I export/import the cert into Azure key vault and use for other custom domains (for example: APIM) will the auto renew ability continue to work as expected (automatically) or will I be forced to manage the cert differently now stored in key vault?
Key Vault Certificates support automatic renewal with selected issuers - Key Vault partner X509 certificate providers / certificate authorities.
Non-partnered providers/authorities are also allowed but, will not support the auto renewal feature.
So, the cert imported into key vault will auto renew the cert instead of manually renewing it.
The renewal process of the certificate is managed on key vault, so doesn't matter where you use it, it will be the same renewal process.
Related
Is it supposed to be done in Azure since its SharePoint or is it in a different server. I have looked into Azure Key Vault but before proceeding need confirmation if this is correct. And if so how to go about generating it.
Please check if the below points are helpful:
For a simple way to create a CSR that works on any Microsoft server
platform, you can use the DigiCert.Azure Key Vault partners with the
following certificate authorities to simplify certificate creation.
DigiCert, GlobalSign.( offers OV TLS/SSL certificates with
DigiCert /GlobalSign)
Azure Key Vault supports storing digital certificates issued by any
certificate authority (CA). It supports (CSR) with a private/public
key pair.
If you are a Microsoft azure user you can create csr in keyvault.The thing we need to make sure is that the private key and resulting public key are a matching pair.( AFAIK CSR need not have to be
generated on SharePoint. )
One of the biggest advantage of managing certificates through Key
Vault is the Private Key of the certificate is never exposed outside
the Key Vault Security World. reference
The Private Key would be stored within Key Vault, and Public Key would
be attached to CSR and submitted to the CA.
During certificate
Import, the Public Key (attached with the certificate) would be
matched against the Private Key (stored within Key Vault) to complete
the Key Pair.
Steps to generate csr in azure keyvault :
Sign into the Azure portal and select the key vault where you wish
to install your certificate.
Select Certificates in the right-hand Settings menu.
Click the Generate/Import button to open the Create a certificate
window.
Enter or select the details in the Create a certificate form fields
Select Certificate issued by a integrated CA / non- integrated CA and
other fields Click the Create button to generate your new key pair and
CSR.
And check this blog / Creating and merging a certificate
signing request in Azure Key Vault | Microsoft Docs for complete
details of steps.
References:
Get started with Key Vault certificates | Microsoft Docs
Access SharePoint online content using Azure key vault certificate
and Azure function app | Sundar’s blog (sundarcloud.com)
Created a self signed certificate in Azure KeyVault as below with DNS
Azure KeyVault Certificate
Have added the certificate to Azure Kubernetes Service as a secret using secret-store-csi-driver and added to ingress
Problem is while opening the DNS in browser it shows certificate is not valid as below
Certificate Not valid
The Certificate is already added to Trusted store and shows as below
Certificate Details
Certificate Details
Also, the certificate in browser is the one in Azure Keyvault certificate as evident from the validity date
What could be the issue?
When you use self sign a certificate, your Operating System or Browser wont trust this Cert, as it is self signed and considered insecure for the Internet.
You need to use a Cert from a valid Certification Authority or import your CA root cert that created the cert into your OS or Browser. But every user need to so this.
A better approach is Cert-Manager ff you are using AKS. Cert-Manager can issue certificates from LetsEncrypt. Here is a workflow from Microsoft for this.
I have to take my Root CA from Azure key vault inside the Azure APIM inbound policy and verify my requested client certificate inside the policy.
For this I have followed the link and able to get the certificate
https://github.com/galiniliev/api-management-policy-snippets/blob/galin/AkvCert/examples/Look%20up%20Key%20Vault%20certificate%20using%20Managed%20Service%20Identity%20and%20call%20backend.policy.xml
But I am not able to validate the client certificate by using My Root CA that I have fetched from Azure key vault
Following is the values of Root CA that I am getting from Azure key vault
{"id":"https://newdev-keyvault.vault.azure.net/certificates/MyRootCA/bf34888e**********","kid":"https://newdev-keyvault.vault.azure.net/keys/MyRootCA/bf34888e*************","sid":"https://newdev-keyvault.vault.azure.net/secrets/MyRootCA/bf34888**************","x5t":"gYbnPUooh4D5_ogrmWCEvfDjYXo","cer":"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","attributes":{"enabled":true,"nbf":1587025108,"exp":1902385108,"created":1587036499,"updated":1587036499,"recoveryLevel":"Recoverable+Purgeable"}}
Can anyone help me to verify the client certificates inside the Inbound policy?
Certificate you obtain dynamically from AKV cannot be used at the moment to validate client certificate from request. The only way is to upload CA certificate to APIM and then call .Validate on request certificate. That will require you to export certificate from AKV and refresh it in APIM every time it changes.
I have uploaded the issuer certificate in the azure key vault and now i want to send a CSR generated in my system to azure and get it signed by the Issuer certificate in the KV and return me back the signed certificate. Any idea on how to accomplish it?
I am sorry that you are not able to accomplish it. For Azure Key Vault's usage scenario, you may refer to What is Azure Key Vault?.
Just as explained in that article, for Certificate, Azure Key Vault lets you easily provision, manage, and deploy public and private Transport Layer Security/Secure Sockets Layer (TLS/SSL) certificates for use with Azure and your internal connected resources.
You can generate a new certificate from Public CA (DigiCert or GlobalSign).
If you want to use custom CA, you can only create a CSR, and get your certificate from that CA, and finally update your certificate to Azure Key Vault. Refer to: Create a certificate manually and get signed by a CA
I am not a professional with certificates, however, I am trying to understand how to get this working with Azure Key Vault.
Use case: I have a website having a SSL certificate signed by a CA. (Not supported by Azure Key Vault)
I want to have that root certificate in my key vault and generate client certificates as needed for our customers. (They need to be able to validate that the certificate they retrieved, came from our Root Certificate).
My questions:
1 - Am I correct when assuming the following:
I can generate a certificate with the Azure key vault, export the CSR, and get the CSR signed by my CA. Importing the output file provided by my CA, will result in having the correct root certificate stored in the Key Vault.
2 - To generate client certificates, I need to repeat the process described in question 1, however, I do not need to get signed by the CA, but rather by my new certificate that was created above? This way, I can create many client certificates in a secure way.