/// <summary>
/// Authenticate using the secret for the specified client from the key store
/// </summary>
/// <param name="clientId">The active directory client id for the application.</param>
/// <param name="audience">The intended audience for authentication</param>
/// <param name="context">The AD AuthenticationContext to use</param>
/// <returns></returns>
public async Task <AuthenticationResult> AuthenticateAsync(string clientId, string audience, AuthenticationContext context)
{
var task = new Task <SecureString>(() =>
{
return(ServicePrincipalKeyStore.GetKey(clientId, _tenantId));
});
task.Start();
var key = await task.ConfigureAwait(false);
return(await context.AcquireTokenAsync(audience, new ClientCredential(clientId, key)));
}
private SecureString LoadAppKey(string appId, string tenantId)
{
return(ServicePrincipalKeyStore.GetKey(appId, tenantId));
}