public void GetCertificatesSync() { // Environment variable with the Key Vault endpoint. string keyVaultUrl = Environment.GetEnvironmentVariable("AZURE_KEYVAULT_URL"); // Instantiate a certificate client that will be used to call the service. Notice that the client is using default Azure // credentials. To make default credentials work, ensure that environment variables 'AZURE_CLIENT_ID', // 'AZURE_CLIENT_KEY' and 'AZURE_TENANT_ID' are set with the service principal credentials. var client = new CertificateClient(new Uri(keyVaultUrl), new DefaultAzureCredential()); // Let's create two self-signed certificates using the default policy string certName1 = $"defaultCert-{Guid.NewGuid()}"; CertificateOperation certOp1 = client.StartCreateCertificate(certName1); string certName2 = $"defaultCert-{Guid.NewGuid()}"; CertificateOperation certOp2 = client.StartCreateCertificate(certName1); // Next let's wait on the certificate operation to complete. Note that certificate creation can last an indeterministic // amount of time, so applications should only wait on the operation to complete in the case the issuance time is well // known and within the scope of the application lifetime. In this case we are creating a self-signed certificate which // should be issued in a relatively short amount of time. while (!certOp1.HasCompleted) { certOp1.UpdateStatus(); Thread.Sleep(certOp1.PollingInterval); } while (!certOp2.HasCompleted) { certOp2.UpdateStatus(); Thread.Sleep(certOp2.PollingInterval); } // Let's list the certificates which exist in the vault along with their thumbprints foreach (CertificateBase cert in client.GetCertificates()) { Debug.WriteLine($"Certificate is returned with name {cert.Name} and thumbprint {BitConverter.ToString(cert.X509Thumbprint)}"); } // We need to create a new version of a certificate. Creating a certificate with the same name will create another version of the certificate CertificateOperation newCertOp = client.StartCreateCertificate(certName1); while (!newCertOp.HasCompleted) { newCertOp.UpdateStatus(); Thread.Sleep(newCertOp.PollingInterval); } // Let's print all the versions of this certificate foreach (CertificateBase cert in client.GetCertificateVersions(certName1)) { Debug.WriteLine($"Certificate {cert.Name} with name {cert.Version}"); } // The certificates are no longer needed. // You need to delete them from the Key Vault. client.DeleteCertificate(certName1); client.DeleteCertificate(certName2); // To ensure certificates are deleted on server side. Assert.IsTrue(WaitForDeletedCertificate(client, certName1)); Assert.IsTrue(WaitForDeletedCertificate(client, certName2)); // You can list all the deleted and non-purged certificates, assuming Key Vault is soft-delete enabled. foreach (DeletedCertificate deletedCert in client.GetDeletedCertificates()) { Debug.WriteLine($"Deleted certificate's recovery Id {deletedCert.RecoveryId}"); } // If the keyvault is soft-delete enabled, then for permanent deletion, deleted keys needs to be purged. client.PurgeDeletedCertificate(certName1); client.PurgeDeletedCertificate(certName2); }