Ссылка на объект не установлена ​​на экземпляр объекта при получении токена с сертификатом

Question

Я пытаюсь получить токен авторизации с Azure AD и сертификатом и приложением consolo. когда я пытаюсь получить токен авторизации, я получаю «Object C Ссылка на объект не установлена ​​на экземпляр объекта».

это код

string _path = @"path_to_cert_file";

// Load the certificate into an X509Certificate object.
var cert_file = System.IO.File.ReadAllBytes(_path);
X509Certificate2 cert = new X509Certificate2(cert_file);

//byte[] certificateContents = Convert.FromBase64String(_options.Certificate);
//X509Certificate2 certificate = new X509Certificate2(certificateContents);
ClientCertificate = new ClientAssertionCertificate("clint_id", cert);

TokenCache cache = new TokenCache();
AuthenticationContext authContext = new AuthenticationContext("https://login.microsoftonline.com/{tenant_id}/oauth2/v2.0/token", false, cache);
AuthenticationResult result = null;
string o365Token = "";

try
{

    result = await authContext.AcquireTokenAsync("https://graph.microsoft.com", ClientCertificate);

    o365Token = result.AccessToken;
}
catch (Exception ex)
{
    throw;
}

, когда я пытаюсь чтобы получить токен, у меня есть ошибка с этой трассировкой стека

   at Microsoft.IdentityModel.Clients.ActiveDirectory.Internal.Platform.SigningHelper.SignWithCertificate(String message, X509Certificate2 certificate)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.ClientAssertionCertificate.Sign(String message)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.Internal.ClientCreds.JsonWebToken.Sign(IClientAssertionCertificate credential, Boolean sendX5c)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.Internal.ClientCreds.ClientKey.AddToParameters(IDictionary`2 parameters)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.Internal.DictionaryRequestParameters..ctor(String resource, ClientKey clientKey)
   at Microsoft.IdentityModel.Clients.ActiveDirectory.Internal.Flows.AcquireTokenHandlerBase.<SendTokenRequestAsync>d__72.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Microsoft.IdentityModel.Clients.ActiveDirectory.Internal.Flows.AcquireTokenHandlerBase.<CheckAndAcquireTokenUsingBrokerAsync>d__62.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult()
   at Microsoft.IdentityModel.Clients.ActiveDirectory.Internal.Flows.AcquireTokenHandlerBase.<RunAsync>d__60.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationContext.<AcquireTokenForClientCommonAsync>d__37.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationContext.<AcquireTokenAsync>d__61.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at TestTeams.Program.<GetTokenAsync>d__10.MoveNext() in 

Answer 1

Неправильный URL-адрес , должен быть https://login.microsoftonline.com/{tenant_id}.

AuthenticationContext authContext = new AuthenticationContext({authority url});

. Вы можете посмотреть эту статью .