(VB.NET) Easy Method to Import Certificate to Azure Key Vault

Demonstrates an easier method to import certificate with private key to an Azure key vault.

Note: This example requires Chilkat v9.5.0.96 or later.

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Dim cert As New Chilkat.Cert

' The certificate must originate from a source where the private key material is available to be included
' in the upload to Azure Key Vault.

Dim success As Boolean = cert.LoadPfxFile("qa_data/pfx/myCert.pfx","pfx_password")
If (success = False) Then
    Debug.WriteLine(cert.LastErrorText)
    Exit Sub
End If


Dim json As New Chilkat.JsonObject

' Indicate this request is to upload to Azure Key Vault.
json.UpdateString("service","azure-keyvault")

' Provide your OAuth2 client credentials for your Azure App (service principal) that has
' the required Role-Based Access Control (RBAC) permissions.
json.UpdateString("auth.client_id","APP_ID")
json.UpdateString("auth.client_secret","APP_PASSWORD")
json.UpdateString("auth.tenant_id","TENANT_ID")

' Indicate the key vault name
json.UpdateString("vault_name","VAULT_NAME")

' When you import a certificate into an Azure Key Vault, the certificate name and vault name are included as 
' parts of the URL to specify the target location where the certificate should be stored. 
' The URL follows a specific format to identify the target Key Vault and the certificate within it. 
' Here's how the certificate name and vault name are incorporated into the URL:
' https://VAULT_NAME.vault.azure.net//certificates/CERT_NAME/import?api-version=7.4

' Specify an arbitrary certificate name, but one that can be used in a URL as shown above.  (i.e. alphanumeric with no SPACE chars)
json.UpdateString("cert_name","CERT_NAME")

' Add optional tags if desired. Tags can be anything you want.   
json.UpdateString("tags.serial",cert.SerialNumber)
json.UpdateString("tags.issuer",cert.IssuerCN)
json.UpdateString("tags.subject",cert.SubjectCN)

' OK.. everything is specified.  Simply call UploadToCloud.
Dim jsonOut As New Chilkat.JsonObject
jsonOut.EmitCompact = False
success = cert.UploadToCloud(json,jsonOut)
If (success = False) Then
    Debug.WriteLine(cert.LastErrorText)
    Debug.WriteLine(jsonOut.Emit())
    Exit Sub
End If


' Success!  Go to the Azure portal and refresh to see the certificate has been uploaded.
' The jsonOut provides the JSON response from the Azure server.
Debug.WriteLine(jsonOut.Emit())
Debug.WriteLine("Success")

' Here is sample jsonOut

' {
'   "id": "https://kvchilkat.vault.azure.net/certificates/ChilkatTestCert123/b6e997db70144435a49d924be9f260ef",
'   "kid": "https://kvchilkat.vault.azure.net/keys/ChilkatTestCert123/b6e997db70144435a49d924be9f260ef",
'   "sid": "https://kvchilkat.vault.azure.net/secrets/ChilkatTestCert123/b6e997db70144435a49d924be9f260ef",
'   "x5t": "I_e3776K5Q_6PN1HHvJoI2ZGQRQ",
'   "cer": "MIIGXjCCBMagAw ... z50cjTsi7yIY=",
'   "attributes": {
'     "enabled": true,
'     "nbf": 1633996800,
'     "exp": 1728691199,
'     "created": 1697754785,
'     "updated": 1697754785,
'     "recoveryLevel": "CustomizedRecoverable+Purgeable",
'     "recoverableDays": 7
'   },
'   "tags": {
'     "serial": "3FF5B69109BFD4046C92CC0D18EE23C2",
'     "issuer": "Sectigo Public Code Signing CA R36",
'     "subject": "Chilkat Software, Inc."
'   },
'   "policy": {
'     "id": "https://kvchilkat.vault.azure.net/certificates/ChilkatTestCert123/policy",
'     "key_props": {
'       "exportable": true,
'       "kty": "RSA",
'       "key_size": 4096,
'       "reuse_key": false
'     },
'     "secret_props": {
'       "contentType": "application/x-pkcs12"
'     },
'     "x509_props": {
'       "subject": "CN=\"Chilkat Software, Inc.\", O=\"Chilkat Software, Inc.\", S=Illinois, C=US",
'       "ekus": [
'         "1.3.6.1.5.5.7.3.3"
'       ],
'       "key_usage": [
'         "digitalSignature"
'       ],
'       "validity_months": 37,
'       "basic_constraints": {
'         "ca": false
'       }
'     },
'     "lifetime_actions": [
'       {
'         "trigger": {
'           "lifetime_percentage": 80
'         },
'         "action": {
'           "action_type": "EmailContacts"
'         }
'       }
'     ],
'     "issuer": {
'       "name": "Unknown"
'     },
'     "attributes": {
'       "enabled": true,
'       "created": 1697754785,
'       "updated": 1697754785
'     }
'   }
' }