> ## Documentation Index
> Fetch the complete documentation index at: https://auth0.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Inscription et authentifiants par défi-réponse avec courriel

> Décrit comment créer vos propres flux MFA à l’aide de SMS ou de la voix comme facteur d’authentification.

export const AuthCodeGroup = ({children, dropdown}) => {
  const [processedChildren, setProcessedChildren] = useState(children);
  useEffect(() => {
    let unsubscribe = null;
    function init() {
      unsubscribe = window.autorun(() => {
        const processChildren = node => {
          if (typeof node === "string") {
            let processedNode = node;
            for (const [key, value] of window.rootStore.variableStore.values.entries()) {
              const escapedKey = key.replaceAll(/[.*+?^${}()|[\]\\]/g, (String.raw)`\$&`);
              processedNode = processedNode.replaceAll(new RegExp(escapedKey, "g"), value);
            }
            return processedNode;
          } else if (Array.isArray(node)) {
            return node.map(processChildren);
          } else if (node && node.props && node.props.children) {
            return {
              ...node,
              props: {
                ...node.props,
                children: processChildren(node.props.children)
              }
            };
          }
          return node;
        };
        setProcessedChildren(processChildren(children));
      });
    }
    if (window.rootStore) {
      init();
    } else {
      window.addEventListener("adu:storeReady", init);
    }
    return () => {
      window.removeEventListener("adu:storeReady", init);
      unsubscribe?.();
    };
  }, [children]);
  return <CodeGroup dropdown={dropdown}>{processedChildren}</CodeGroup>;
};

export const AuthCodeBlock = ({filename, icon, language, highlight, children}) => {
  const [displayText, setDisplayText] = useState(children);
  const [copyText, setCopyText] = useState(children);
  const wrapperRef = React.useRef(null);
  useEffect(() => {
    let unsubscribe = null;
    function init() {
      if (!window.autorun || !window.rootStore) {
        return;
      }
      unsubscribe = window.autorun(() => {
        let processedChildrenForDisplay = children;
        let processedChildrenForCopy = children;
        for (const [key, value] of window.rootStore.variableStore.values.entries()) {
          const escapedKey = key.replaceAll(/[.*+?^${}()|[\]\\]/g, (String.raw)`\$&`);
          let displayValue = value;
          if (key === "{yourClientSecret}" && value !== "{yourClientSecret}") {
            displayValue = value.substring(0, 3) + "*****MASKED*****";
          }
          processedChildrenForDisplay = processedChildrenForDisplay.replaceAll(new RegExp(escapedKey, "g"), displayValue);
          processedChildrenForCopy = processedChildrenForCopy.replaceAll(new RegExp(escapedKey, "g"), value);
        }
        setDisplayText(processedChildrenForDisplay);
        setCopyText(processedChildrenForCopy);
      });
    }
    if (window.rootStore) {
      init();
    } else {
      window.addEventListener("adu:storeReady", init);
    }
    return () => {
      window.removeEventListener("adu:storeReady", init);
      unsubscribe?.();
    };
  }, [children]);
  useEffect(() => {
    if (!wrapperRef.current) return;
    const originalWriteText = navigator.clipboard.writeText.bind(navigator.clipboard);
    let isOverriding = false;
    const handleClick = e => {
      const button = e.target.closest('[data-testid="copy-code-button"]');
      if (!button || !wrapperRef.current.contains(button)) return;
      isOverriding = true;
      navigator.clipboard.writeText = text => {
        if (isOverriding) {
          isOverriding = false;
          navigator.clipboard.writeText = originalWriteText;
          return originalWriteText(copyText);
        }
        return originalWriteText(text);
      };
      setTimeout(() => {
        if (isOverriding) {
          isOverriding = false;
          navigator.clipboard.writeText = originalWriteText;
        }
      }, 100);
    };
    const wrapper = wrapperRef.current;
    wrapper.addEventListener('click', handleClick, true);
    return () => {
      wrapper.removeEventListener('click', handleClick, true);
      if (navigator.clipboard.writeText !== originalWriteText) {
        navigator.clipboard.writeText = originalWriteText;
      }
    };
  }, [copyText]);
  return <div ref={wrapperRef}>
      <CodeBlock filename={filename} icon={icon} language={language} lines highlight={highlight}>
        {displayText}
      </CodeBlock>
    </div>;
};

Auth0 offre un flux intégré d’enregistrement et d’authentification <Tooltip href="/docs/fr-ca/glossary?term=multifactor-authentication" tip="Authentification multifacteur (MFA)
Processus d’authentification de l’utilisateur qui utilise un facteur en plus du nom d’utilisateur et du mot de passe, tel qu’un code par SMS." cta="Voir le glossaire">MFA</Tooltip> en utilisant la [connexion universelle](/docs/fr-ca/authenticate/login/auth0-universal-login). Cependant, si vous souhaitez créer votre propre interface utilisateur, vous pouvez utiliser [l’API MFA](/docs/fr-ca/secure/multi-factor-authentication/multi-factor-authentication-developer-resources/mfa-api) pour ce faire.

Lorsque le courriel est activé comme facteur d’authentification, tous les utilisateurs disposant de courriels vérifiés peuvent les utiliser pour compléter le MFA.

<Card title="La disponibilité varie selon le plan Auth0">
  L’implémentation propre à votre connexion et votre plan Auth0 ou accord personnalisé que vous utilisez déterminent si cette fonctionnalité est disponible. Pour en savoir plus, lisez [Tarification](https://auth0.com/pricing).
</Card>

## Prérequis

Avant de pouvoir utiliser les API MFA, vous devrez activer le type d’autorisation MFA pour votre application. Accédez à [Auth0 Dashboard > Applications > Paramètres avancés > Types d’autorisation](https://manage.auth0.com/#/applications) et sélectionnez **MFA**.

* [Configurer le courriel](/docs/fr-ca/secure/multi-factor-authentication/multi-factor-authentication-factors/configure-email-notifications-for-mfa) comme facteur d’authentification dans le Dashboard ou à l’aide de la [Management API](https://auth0.com/docs/api/management/v2#!/Guardian/put_factors_by_name).

## Inscription avec courriel

Pour permettre aux utilisateurs d’inscrire des courriels en plus de leur courriel vérifié comme identité principale, vous devez suivre les étapes suivantes.

### Obtenir un jeton MFA

En fonction du moment où vous lancez l’enregistrement, vous pouvez obtenir un jeton d’accès en utilisant l’API MFA de plusieurs façons :

* Si vous vous inscrivez pendant l’authentification, consultez [Authentifier avec l’octroi du mot de passe du propriétaire de la ressource et la MFA](/docs/fr-ca/secure/multi-factor-authentication/authenticate-using-ropg-flow-with-mfa).
* Si vous souhaitez laissez l’utilisateur enregistrer un facteur à tout moment, consultez [Gérer les enregistrements des facteurs MFA](/docs/fr-ca/secure/multi-factor-authentication/manage-mfa-auth0-apis/manage-authenticator-factors-mfa-api).

### Inscrire des facteurs d’authentification

Faites une demande `POST (PUBLIER)` au point de terminaison d’association MFA pour enregistrer le facteur d’authentification de l’utilisateur. Le jeton du porteur requis par ce point de terminaison est le jeton MFA obtenu à l’étape précédente.

Utilisez les paramètres suivants :

| Paramètre              | Valeur                                                    |
| ---------------------- | --------------------------------------------------------- |
| `authentication_types` | `[oob]`                                                   |
| `oob_channels`         | `[email]`                                                 |
| `email`                | `email@address.com`, l’adresse courriel de l’utilisateur. |

<AuthCodeGroup>
  ```bash cURL theme={null}
  curl --request POST \
    --url 'https://{yourDomain}/mfa/associate' \
    --header 'authorization: Bearer MFA_TOKEN' \
    --header 'content-type: application/json' \
    --data '{ "authenticator_types": ["oob"], "oob_channels": ["email"], "email" : "email@address.com" }'
  ```

  ```csharp C# theme={null}
  var client = new RestClient("https://{yourDomain}/mfa/associate");
  var request = new RestRequest(Method.POST);
  request.AddHeader("authorization", "Bearer MFA_TOKEN");
  request.AddHeader("content-type", "application/json");
  request.AddParameter("application/json", "{ "authenticator_types": ["oob"], "oob_channels": ["email"], "email" : "email@address.com" }", ParameterType.RequestBody);
  IRestResponse response = client.Execute(request);
  ```

  ```go Go theme={null}
  package main

  import (
  	"fmt"
  	"strings"
  	"net/http"
  	"io/ioutil"
  )

  func main() {

  	url := "https://{yourDomain}/mfa/associate"

  	payload := strings.NewReader("{ "authenticator_types": ["oob"], "oob_channels": ["email"], "email" : "email@address.com" }")

  	req, _ := http.NewRequest("POST", url, payload)

  	req.Header.Add("authorization", "Bearer MFA_TOKEN")
  	req.Header.Add("content-type", "application/json")

  	res, _ := http.DefaultClient.Do(req)

  	defer res.Body.Close()
  	body, _ := ioutil.ReadAll(res.Body)

  	fmt.Println(res)
  	fmt.Println(string(body))

  }
  ```

  ```java Java theme={null}
  HttpResponse<String> response = Unirest.post("https://{yourDomain}/mfa/associate")
    .header("authorization", "Bearer MFA_TOKEN")
    .header("content-type", "application/json")
    .body("{ "authenticator_types": ["oob"], "oob_channels": ["email"], "email" : "email@address.com" }")
    .asString();
  ```

  ```javascript Node.JS theme={null}
  var axios = require("axios").default;

  var options = {
    method: 'POST',
    url: 'https://{yourDomain}/mfa/associate',
    headers: {authorization: 'Bearer MFA_TOKEN', 'content-type': 'application/json'},
    data: {
      authenticator_types: ['oob'],
      oob_channels: ['email'],
      email: 'email@address.com'
    }
  };

  axios.request(options).then(function (response) {
    console.log(response.data);
  }).catch(function (error) {
    console.error(error);
  });
  ```

  ```objc Obj-C theme={null}
  #import <Foundation/Foundation.h>

  NSDictionary *headers = @{ @"authorization": @"Bearer MFA_TOKEN",
                             @"content-type": @"application/json" };
  NSDictionary *parameters = @{ @"authenticator_types": @[ @"oob" ],
                                @"oob_channels": @[ @"email" ],
                                @"email": @"email@address.com" };

  NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];

  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/mfa/associate"]
                                                         cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                     timeoutInterval:10.0];
  [request setHTTPMethod:@"POST"];
  [request setAllHTTPHeaderFields:headers];
  [request setHTTPBody:postData];

  NSURLSession *session = [NSURLSession sharedSession];
  NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
                                              completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                                                  if (error) {
                                                      NSLog(@"%@", error);
                                                  } else {
                                                      NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
                                                      NSLog(@"%@", httpResponse);
                                                  }
                                              }];
  [dataTask resume];
  ```

  ```php PHP theme={null}
  $curl = curl_init();

  curl_setopt_array($curl, [
    CURLOPT_URL => "https://{yourDomain}/mfa/associate",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_POSTFIELDS => "{ "authenticator_types": ["oob"], "oob_channels": ["email"], "email" : "email@address.com" }",
    CURLOPT_HTTPHEADER => [
      "authorization: Bearer MFA_TOKEN",
      "content-type: application/json"
    ],
  ]);

  $response = curl_exec($curl);
  $err = curl_error($curl);

  curl_close($curl);

  if ($err) {
    echo "cURL Error #:" . $err;
  } else {
    echo $response;
  }
  ```

  ```python Python theme={null}
  import http.client

  conn = http.client.HTTPSConnection("")

  payload = "{ "authenticator_types": ["oob"], "oob_channels": ["email"], "email" : "email@address.com" }"

  headers = {
      'authorization': "Bearer MFA_TOKEN",
      'content-type': "application/json"
      }

  conn.request("POST", "/{yourDomain}/mfa/associate", payload, headers)

  res = conn.getresponse()
  data = res.read()

  print(data.decode("utf-8"))
  ```

  ```ruby Ruby theme={null}
  require 'uri'
  require 'net/http'
  require 'openssl'

  url = URI("https://{yourDomain}/mfa/associate")

  http = Net::HTTP.new(url.host, url.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE

  request = Net::HTTP::Post.new(url)
  request["authorization"] = 'Bearer MFA_TOKEN'
  request["content-type"] = 'application/json'
  request.body = "{ "authenticator_types": ["oob"], "oob_channels": ["email"], "email" : "email@address.com" }"

  response = http.request(request)
  puts response.read_body
  ```

  ```swift Swift theme={null}
  import Foundation

  let headers = [
    "authorization": "Bearer MFA_TOKEN",
    "content-type": "application/json"
  ]
  let parameters = [
    "authenticator_types": ["oob"],
    "oob_channels": ["email"],
    "email": "email@address.com"
  ] as [String : Any]

  let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

  let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/mfa/associate")! as URL,
                                          cachePolicy: .useProtocolCachePolicy,
                                      timeoutInterval: 10.0)
  request.httpMethod = "POST"
  request.allHTTPHeaderFields = headers
  request.httpBody = postData as Data

  let session = URLSession.shared
  let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
    if (error != nil) {
      print(error)
    } else {
      let httpResponse = response as? HTTPURLResponse
      print(httpResponse)
    }
  })

  dataTask.resume()
  ```
</AuthCodeGroup>

Si l’étape réussie, vous recevez une réponse comme celle-ci :

```json lines theme={null}
{
    "authenticator_type": "oob",
    "binding_method": "prompt",
    "oob_code" : "Fe26..nWE",
    "oob_channel": "email",
    "recovery_codes": [ "N3BGPZZWJ85JLCNPZBDW6QXC" ]
  }
```

Si vous recevez une erreur `User is already enrolled (Utilisateur déjà inscrit)`, l’utilisateur a déjà un facteur MFA inscrit. Avant d’associer un autre facteur à l’utilisateur, vous devez lancer un défi-réponse à l’utilisateur avec le facteur existant.

Si c’est la première fois que l’utilisateur associe un authentifiant, vous remarquerez que la réponse comprend `recovery_codes`. Les codes de récupération sont utilisés pour accéder au compte de l’utilisateur dans le cas où il perdrait l’accès au compte ou à l’appareil utilisé pour son authentification à deux facteurs. Ce sont des codes à usage unique, et de nouveaux codes sont générés au besoin.

### Confirmer l’inscription par courriel

L’utilisateur recevra un courriel contenant le code à six chiffres qu’il devra saisir dans l’application.

Pour compléter l’inscription, réalisez une requête `POST` au [**`/oath/jeton`**](https://auth0.com/docs/api/authentication#get-token) du point de terminaison. Incluez le `oob_code` retourné dans la réponse précédente et le `binding_code` avec la valeur inscrite dans le courriel.

<AuthCodeGroup>
  ```bash cURL theme={null}
  curl --request POST \
    --url 'https://{yourDomain}/oauth/token' \
    --data grant_type=http://auth0.com/oauth/grant-type/mfa-oob \
    --data 'mfa_token={mfaToken}' \
    --data 'oob_code={oobCode}' \
    --data 'binding_code={userEmailOtpCode}' \
    --data 'client_id={yourClientId}' \
    --data 'client_secret={yourClientSecret}'
  ```

  ```csharp C# theme={null}
  var client = new RestClient("https://{yourDomain}/oauth/token");
  var request = new RestRequest(Method.POST);
  request.AddParameter("undefined", "grant_type=http%3A%2F%2Fauth0.com%2Foauth%2Fgrant-type%2Fmfa-oob&mfa_token=%7BmfaToken%7D&oob_code=%7BoobCode%7D&binding_code=%7BuserEmailOtpCode%7D&client_id={yourClientId}&client_secret=%7ByourClientSecret%7D", ParameterType.RequestBody);
  IRestResponse response = client.Execute(request);
  ```

  ```go Go theme={null}
  package main

  import (
  	"fmt"
  	"strings"
  	"net/http"
  	"io/ioutil"
  )

  func main() {

  	url := "https://{yourDomain}/oauth/token"

  	payload := strings.NewReader("grant_type=http%3A%2F%2Fauth0.com%2Foauth%2Fgrant-type%2Fmfa-oob&mfa_token=%7BmfaToken%7D&oob_code=%7BoobCode%7D&binding_code=%7BuserEmailOtpCode%7D&client_id={yourClientId}&client_secret=%7ByourClientSecret%7D")

  	req, _ := http.NewRequest("POST", url, payload)

  	res, _ := http.DefaultClient.Do(req)

  	defer res.Body.Close()
  	body, _ := ioutil.ReadAll(res.Body)

  	fmt.Println(res)
  	fmt.Println(string(body))

  }
  ```

  ```java Java theme={null}
  HttpResponse<String> response = Unirest.post("https://{yourDomain}/oauth/token")
    .body("grant_type=http%3A%2F%2Fauth0.com%2Foauth%2Fgrant-type%2Fmfa-oob&mfa_token=%7BmfaToken%7D&oob_code=%7BoobCode%7D&binding_code=%7BuserEmailOtpCode%7D&client_id={yourClientId}&client_secret=%7ByourClientSecret%7D")
    .asString();
  ```

  ```javascript Node.JS theme={null}
  var axios = require("axios").default;

  var options = {
    method: 'POST',
    url: 'https://{yourDomain}/oauth/token',
    data: new URLSearchParams({
      grant_type: 'http://auth0.com/oauth/grant-type/mfa-oob',
      mfa_token: '{mfaToken}',
      oob_code: '{oobCode}',
      binding_code: '{userEmailOtpCode}',
      client_id: '{yourClientId}',
      client_secret: '{yourClientSecret}'
    })
  };

  axios.request(options).then(function (response) {
    console.log(response.data);
  }).catch(function (error) {
    console.error(error);
  });
  ```

  ```objc Obj-C theme={null}
  #import <Foundation/Foundation.h>

  NSMutableData *postData = [[NSMutableData alloc] initWithData:[@"grant_type=http://auth0.com/oauth/grant-type/mfa-oob" dataUsingEncoding:NSUTF8StringEncoding]];
  [postData appendData:[@"&mfa_token={mfaToken}" dataUsingEncoding:NSUTF8StringEncoding]];
  [postData appendData:[@"&oob_code={oobCode}" dataUsingEncoding:NSUTF8StringEncoding]];
  [postData appendData:[@"&binding_code={userEmailOtpCode}" dataUsingEncoding:NSUTF8StringEncoding]];
  [postData appendData:[@"&client_id={yourClientId}" dataUsingEncoding:NSUTF8StringEncoding]];
  [postData appendData:[@"&client_secret={yourClientSecret}" dataUsingEncoding:NSUTF8StringEncoding]];

  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/oauth/token"]
                                                         cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                     timeoutInterval:10.0];
  [request setHTTPMethod:@"POST"];
  [request setHTTPBody:postData];

  NSURLSession *session = [NSURLSession sharedSession];
  NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
                                              completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                                                  if (error) {
                                                      NSLog(@"%@", error);
                                                  } else {
                                                      NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
                                                      NSLog(@"%@", httpResponse);
                                                  }
                                              }];
  [dataTask resume];
  ```

  ```php PHP theme={null}
  $curl = curl_init();

  curl_setopt_array($curl, [
    CURLOPT_URL => "https://{yourDomain}/oauth/token",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_POSTFIELDS => "grant_type=http%3A%2F%2Fauth0.com%2Foauth%2Fgrant-type%2Fmfa-oob&mfa_token=%7BmfaToken%7D&oob_code=%7BoobCode%7D&binding_code=%7BuserEmailOtpCode%7D&client_id={yourClientId}&client_secret=%7ByourClientSecret%7D",
  ]);

  $response = curl_exec($curl);
  $err = curl_error($curl);

  curl_close($curl);

  if ($err) {
    echo "cURL Error #:" . $err;
  } else {
    echo $response;
  }
  ```

  ```python Python theme={null}
  import http.client

  conn = http.client.HTTPSConnection("")

  payload = "grant_type=http%3A%2F%2Fauth0.com%2Foauth%2Fgrant-type%2Fmfa-oob&mfa_token=%7BmfaToken%7D&oob_code=%7BoobCode%7D&binding_code=%7BuserEmailOtpCode%7D&client_id={yourClientId}&client_secret=%7ByourClientSecret%7D"

  conn.request("POST", "/{yourDomain}/oauth/token", payload)

  res = conn.getresponse()
  data = res.read()

  print(data.decode("utf-8"))
  ```

  ```ruby Ruby theme={null}
  require 'uri'
  require 'net/http'
  require 'openssl'

  url = URI("https://{yourDomain}/oauth/token")

  http = Net::HTTP.new(url.host, url.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE

  request = Net::HTTP::Post.new(url)
  request.body = "grant_type=http%3A%2F%2Fauth0.com%2Foauth%2Fgrant-type%2Fmfa-oob&mfa_token=%7BmfaToken%7D&oob_code=%7BoobCode%7D&binding_code=%7BuserEmailOtpCode%7D&client_id={yourClientId}&client_secret=%7ByourClientSecret%7D"

  response = http.request(request)
  puts response.read_body
  ```

  ```swift Swift theme={null}
  import Foundation

  let postData = NSMutableData(data: "grant_type=http://auth0.com/oauth/grant-type/mfa-oob".data(using: String.Encoding.utf8)!)
  postData.append("&mfa_token={mfaToken}".data(using: String.Encoding.utf8)!)
  postData.append("&oob_code={oobCode}".data(using: String.Encoding.utf8)!)
  postData.append("&binding_code={userEmailOtpCode}".data(using: String.Encoding.utf8)!)
  postData.append("&client_id={yourClientId}".data(using: String.Encoding.utf8)!)
  postData.append("&client_secret={yourClientSecret}".data(using: String.Encoding.utf8)!)

  let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/oauth/token")! as URL,
                                          cachePolicy: .useProtocolCachePolicy,
                                      timeoutInterval: 10.0)
  request.httpMethod = "POST"
  request.httpBody = postData as Data

  let session = URLSession.shared
  let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
    if (error != nil) {
      print(error)
    } else {
      let httpResponse = response as? HTTPURLResponse
      print(httpResponse)
    }
  })

  dataTask.resume()
  ```
</AuthCodeGroup>

Si l’appel ne réussi pas, vous recevrez une réponse dans le format suivant, contenant le jeton d’accès :

```json lines theme={null}
{
  "id_token": "eyJ...i",
  "access_token": "eyJ...i",
  "expires_in": 600,
  "scope": "openid profile",
  "token_type": "Bearer"
}
```

À ce stade, l’authentificateur est entièrement associé et prêt à être utilisé, et vous disposez des jetons d’authentification pour l’utilisateur.

À tout moment, vous pouvez vérifier si un authentificateur a été confirmé en appelant le point de terminaison des facteurs d’authentification MFA. Si l’authentification est confirmée, la valeur passe de `active` à `réelle`.

Vous pouvez éventuellement personnaliser les courriels que les utilisateurs reçoivent. Consultez [Personnalisation des modèles de courriel](/docs/fr-ca/customize/email/email-templates) pour en savoir davantage.

## Défi-réponse avec courriel

### Obtenir un jeton MFA

Obtenez un jeton MFA en suivant les étapes décrites dans [Authentification avec le propriétaire de la ressource Autorisation par mot de passe et MFA](/docs/fr-ca/secure/multi-factor-authentication/authenticate-using-ropg-flow-with-mfa).

### Récupérer les facteurs d’authentification enregistrés

Pour effectuer le défi-réponse avec l’utilisateur, vous aurez besoin de l’`authenticator_id` pour le facteur que vous désirez utiliser. Vous pouvez énumérer toutes les authentifications à l’aide du point de terminaison des facteurs d’authentification MFA :

<AuthCodeGroup>
  ```bash cURL theme={null}
  curl --request GET \
    --url 'https://{yourDomain}/mfa/authenticators' \
    --header 'authorization: Bearer MFA_TOKEN' \
    --header 'content-type: application/json'
  ```

  ```csharp C# theme={null}
  var client = new RestClient("https://{yourDomain}/mfa/authenticators");
  var request = new RestRequest(Method.GET);
  request.AddHeader("authorization", "Bearer MFA_TOKEN");
  request.AddHeader("content-type", "application/json");
  IRestResponse response = client.Execute(request);
  ```

  ```go Go theme={null}
  package main

  import (
  	"fmt"
  	"net/http"
  	"io/ioutil"
  )

  func main() {

  	url := "https://{yourDomain}/mfa/authenticators"

  	req, _ := http.NewRequest("GET", url, nil)

  	req.Header.Add("authorization", "Bearer MFA_TOKEN")
  	req.Header.Add("content-type", "application/json")

  	res, _ := http.DefaultClient.Do(req)

  	defer res.Body.Close()
  	body, _ := ioutil.ReadAll(res.Body)

  	fmt.Println(res)
  	fmt.Println(string(body))

  }
  ```

  ```java Java theme={null}
  HttpResponse<String> response = Unirest.get("https://{yourDomain}/mfa/authenticators")
    .header("authorization", "Bearer MFA_TOKEN")
    .header("content-type", "application/json")
    .asString();
  ```

  ```javascript Node.JS theme={null}
  var axios = require("axios").default;

  var options = {
    method: 'GET',
    url: 'https://{yourDomain}/mfa/authenticators',
    headers: {authorization: 'Bearer MFA_TOKEN', 'content-type': 'application/json'}
  };

  axios.request(options).then(function (response) {
    console.log(response.data);
  }).catch(function (error) {
    console.error(error);
  });
  ```

  ```objc Obj-C theme={null}
  #import <Foundation/Foundation.h>

  NSDictionary *headers = @{ @"authorization": @"Bearer MFA_TOKEN",
                             @"content-type": @"application/json" };

  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/mfa/authenticators"]
                                                         cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                     timeoutInterval:10.0];
  [request setHTTPMethod:@"GET"];
  [request setAllHTTPHeaderFields:headers];

  NSURLSession *session = [NSURLSession sharedSession];
  NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
                                              completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                                                  if (error) {
                                                      NSLog(@"%@", error);
                                                  } else {
                                                      NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
                                                      NSLog(@"%@", httpResponse);
                                                  }
                                              }];
  [dataTask resume];
  ```

  ```php PHP theme={null}
  $curl = curl_init();

  curl_setopt_array($curl, [
    CURLOPT_URL => "https://{yourDomain}/mfa/authenticators",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "GET",
    CURLOPT_HTTPHEADER => [
      "authorization: Bearer MFA_TOKEN",
      "content-type: application/json"
    ],
  ]);

  $response = curl_exec($curl);
  $err = curl_error($curl);

  curl_close($curl);

  if ($err) {
    echo "cURL Error #:" . $err;
  } else {
    echo $response;
  }
  ```

  ```python Python theme={null}
  import http.client

  conn = http.client.HTTPSConnection("")

  headers = {
      'authorization': "Bearer MFA_TOKEN",
      'content-type': "application/json"
      }

  conn.request("GET", "/{yourDomain}/mfa/authenticators", headers=headers)

  res = conn.getresponse()
  data = res.read()

  print(data.decode("utf-8"))
  ```

  ```ruby Ruby theme={null}
  require 'uri'
  require 'net/http'
  require 'openssl'

  url = URI("https://{yourDomain}/mfa/authenticators")

  http = Net::HTTP.new(url.host, url.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE

  request = Net::HTTP::Get.new(url)
  request["authorization"] = 'Bearer MFA_TOKEN'
  request["content-type"] = 'application/json'

  response = http.request(request)
  puts response.read_body
  ```

  ```swift Swift theme={null}
  import Foundation

  let headers = [
    "authorization": "Bearer MFA_TOKEN",
    "content-type": "application/json"
  ]

  let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/mfa/authenticators")! as URL,
                                          cachePolicy: .useProtocolCachePolicy,
                                      timeoutInterval: 10.0)
  request.httpMethod = "GET"
  request.allHTTPHeaderFields = headers

  let session = URLSession.shared
  let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
    if (error != nil) {
      print(error)
    } else {
      let httpResponse = response as? HTTPURLResponse
      print(httpResponse)
    }
  })

  dataTask.resume()
  ```
</AuthCodeGroup>

### Défi-réponse avec mot de passe à usage unique

Pour déclencher un défi-réponse avec courriel, `POST` au point de terminaison du défi-réponse MFA à l’aide de l’`authenticator_id` correspondante et du `mfa_token`.

<AuthCodeGroup>
  ```bash cURL theme={null}
  curl --request POST \
    --url 'https://{yourDomain}/mfa/challenge' \
    --data '{  "client_id": "{yourClientId}",  "client_secret": "{yourClientSecret}",  "challenge_type": "oob",  "authenticator_id": "email|dev_NU1Ofuw3Cw0XCt5x", "mfa_token": "{mfaToken}" }'
  ```

  ```csharp C# theme={null}
  var client = new RestClient("https://{yourDomain}/mfa/challenge");
  var request = new RestRequest(Method.POST);
  request.AddParameter("undefined", "{  "client_id": "{yourClientId}",  "client_secret": "{yourClientSecret}",  "challenge_type": "oob",  "authenticator_id": "email|dev_NU1Ofuw3Cw0XCt5x", "mfa_token": "{mfaToken}" }", ParameterType.RequestBody);
  IRestResponse response = client.Execute(request);
  ```

  ```go Go theme={null}
  package main

  import (
  	"fmt"
  	"strings"
  	"net/http"
  	"io/ioutil"
  )

  func main() {

  	url := "https://{yourDomain}/mfa/challenge"

  	payload := strings.NewReader("{  "client_id": "{yourClientId}",  "client_secret": "{yourClientSecret}",  "challenge_type": "oob",  "authenticator_id": "email|dev_NU1Ofuw3Cw0XCt5x", "mfa_token": "{mfaToken}" }")

  	req, _ := http.NewRequest("POST", url, payload)

  	res, _ := http.DefaultClient.Do(req)

  	defer res.Body.Close()
  	body, _ := ioutil.ReadAll(res.Body)

  	fmt.Println(res)
  	fmt.Println(string(body))

  }
  ```

  ```java Java theme={null}
  HttpResponse<String> response = Unirest.post("https://{yourDomain}/mfa/challenge")
    .body("{  "client_id": "{yourClientId}",  "client_secret": "{yourClientSecret}",  "challenge_type": "oob",  "authenticator_id": "email|dev_NU1Ofuw3Cw0XCt5x", "mfa_token": "{mfaToken}" }")
    .asString();
  ```

  ```javascript Node.JS theme={null}
  var axios = require("axios").default;

  var options = {
    method: 'POST',
    url: 'https://{yourDomain}/mfa/challenge',
    data: {
      client_id: '{yourClientId}',
      client_secret: '{yourClientSecret}',
      challenge_type: 'oob',
      authenticator_id: 'email|dev_NU1Ofuw3Cw0XCt5x',
      mfa_token: '{mfaToken}'
    }
  };

  axios.request(options).then(function (response) {
    console.log(response.data);
  }).catch(function (error) {
    console.error(error);
  });
  ```

  ```objc Obj-C theme={null}
  #import <Foundation/Foundation.h>
  NSDictionary *parameters = @{ @"client_id": @"{yourClientId}",
                                @"client_secret": @"{yourClientSecret}",
                                @"challenge_type": @"oob",
                                @"authenticator_id": @"email|dev_NU1Ofuw3Cw0XCt5x",
                                @"mfa_token": @"{mfaToken}" };

  NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];

  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/mfa/challenge"]
                                                         cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                     timeoutInterval:10.0];
  [request setHTTPMethod:@"POST"];
  [request setHTTPBody:postData];

  NSURLSession *session = [NSURLSession sharedSession];
  NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
                                              completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                                                  if (error) {
                                                      NSLog(@"%@", error);
                                                  } else {
                                                      NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
                                                      NSLog(@"%@", httpResponse);
                                                  }
                                              }];
  [dataTask resume];
  ```

  ```php PHP theme={null}
  $curl = curl_init();

  curl_setopt_array($curl, [
    CURLOPT_URL => "https://{yourDomain}/mfa/challenge",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_POSTFIELDS => "{  "client_id": "{yourClientId}",  "client_secret": "{yourClientSecret}",  "challenge_type": "oob",  "authenticator_id": "email|dev_NU1Ofuw3Cw0XCt5x", "mfa_token": "{mfaToken}" }",
  ]);

  $response = curl_exec($curl);
  $err = curl_error($curl);

  curl_close($curl);

  if ($err) {
    echo "cURL Error #:" . $err;
  } else {
    echo $response;
  }
  ```

  ```python Python theme={null}
  import http.client

  conn = http.client.HTTPSConnection("")

  payload = "{  "client_id": "{yourClientId}",  "client_secret": "{yourClientSecret}",  "challenge_type": "oob",  "authenticator_id": "email|dev_NU1Ofuw3Cw0XCt5x", "mfa_token": "{mfaToken}" }"

  conn.request("POST", "/{yourDomain}/mfa/challenge", payload)

  res = conn.getresponse()
  data = res.read()

  print(data.decode("utf-8"))
  ```

  ```ruby Ruby theme={null}
  require 'uri'
  require 'net/http'
  require 'openssl'

  url = URI("https://{yourDomain}/mfa/challenge")

  http = Net::HTTP.new(url.host, url.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE

  request = Net::HTTP::Post.new(url)
  request.body = "{  "client_id": "{yourClientId}",  "client_secret": "{yourClientSecret}",  "challenge_type": "oob",  "authenticator_id": "email|dev_NU1Ofuw3Cw0XCt5x", "mfa_token": "{mfaToken}" }"

  response = http.request(request)
  puts response.read_body
  ```

  ```swift Swift theme={null}
  import Foundation
  let parameters = [
    "client_id": "{yourClientId}",
    "client_secret": "{yourClientSecret}",
    "challenge_type": "oob",
    "authenticator_id": "email|dev_NU1Ofuw3Cw0XCt5x",
    "mfa_token": "{mfaToken}"
  ] as [String : Any]

  let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

  let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/mfa/challenge")! as URL,
                                          cachePolicy: .useProtocolCachePolicy,
                                      timeoutInterval: 10.0)
  request.httpMethod = "POST"
  request.httpBody = postData as Data

  let session = URLSession.shared
  let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
    if (error != nil) {
      print(error)
    } else {
      let httpResponse = response as? HTTPURLResponse
      print(httpResponse)
    }
  })

  dataTask.resume()
  ```
</AuthCodeGroup>

### Compléter l’authentification à l’aide du code reçu

Si l’opération réussie, vous recevrez la réponse suivante :

```json lines theme={null}
{
  "challenge_type": "oob",
  "oob_code": "abcd1234...",
  "binding_method": "prompt"
}
```

Votre application devrait inviter l’utilisateur à saisir un code et l’envoyer dans le cadre de la requête dans le paramètre `binding_code` dans l’appel suivant au point de terminaison du `oauth/token` :

<AuthCodeGroup>
  ```bash cURL theme={null}
  curl --request POST \
    --url 'https://{yourDomain}/oauth/token' \
    --header 'content-type: application/x-www-form-urlencoded' \
    --data grant_type=http://auth0.com/oauth/grant-type/mfa-oob \
    --data 'client_id={yourClientId}' \
    --data 'client_secret={yourClientSecret}' \
    --data 'mfa_token={mfaToken}' \
    --data 'oob_code={oobCode}' \
    --data 'binding_code={userEmailOtpCode}'
  ```

  ```csharp C# theme={null}
  var client = new RestClient("https://{yourDomain}/oauth/token");
  var request = new RestRequest(Method.POST);
  request.AddHeader("content-type", "application/x-www-form-urlencoded");
  request.AddParameter("application/x-www-form-urlencoded", "grant_type=http%3A%2F%2Fauth0.com%2Foauth%2Fgrant-type%2Fmfa-oob&client_id={yourClientId}&client_secret=%7ByourClientSecret%7D&mfa_token=%7BmfaToken%7D&oob_code=%7BoobCode%7D&binding_code=%7BuserEmailOtpCode%7D", ParameterType.RequestBody);
  IRestResponse response = client.Execute(request);
  ```

  ```go Go theme={null}
  package main

  import (
  	"fmt"
  	"strings"
  	"net/http"
  	"io/ioutil"
  )

  func main() {

  	url := "https://{yourDomain}/oauth/token"

  	payload := strings.NewReader("grant_type=http%3A%2F%2Fauth0.com%2Foauth%2Fgrant-type%2Fmfa-oob&client_id={yourClientId}&client_secret=%7ByourClientSecret%7D&mfa_token=%7BmfaToken%7D&oob_code=%7BoobCode%7D&binding_code=%7BuserEmailOtpCode%7D")

  	req, _ := http.NewRequest("POST", url, payload)

  	req.Header.Add("content-type", "application/x-www-form-urlencoded")

  	res, _ := http.DefaultClient.Do(req)

  	defer res.Body.Close()
  	body, _ := ioutil.ReadAll(res.Body)

  	fmt.Println(res)
  	fmt.Println(string(body))

  }
  ```

  ```java Java theme={null}
  HttpResponse<String> response = Unirest.post("https://{yourDomain}/oauth/token")
    .header("content-type", "application/x-www-form-urlencoded")
    .body("grant_type=http%3A%2F%2Fauth0.com%2Foauth%2Fgrant-type%2Fmfa-oob&client_id={yourClientId}&client_secret=%7ByourClientSecret%7D&mfa_token=%7BmfaToken%7D&oob_code=%7BoobCode%7D&binding_code=%7BuserEmailOtpCode%7D")
    .asString();
  ```

  ```javascript Node.JS theme={null}
  var axios = require("axios").default;

  var options = {
    method: 'POST',
    url: 'https://{yourDomain}/oauth/token',
    headers: {'content-type': 'application/x-www-form-urlencoded'},
    data: new URLSearchParams({
      grant_type: 'http://auth0.com/oauth/grant-type/mfa-oob',
      client_id: '{yourClientId}',
      client_secret: '{yourClientSecret}',
      mfa_token: '{mfaToken}',
      oob_code: '{oobCode}',
      binding_code: '{userEmailOtpCode}'
    })
  };

  axios.request(options).then(function (response) {
    console.log(response.data);
  }).catch(function (error) {
    console.error(error);
  });
  ```

  ```objc Obj-C theme={null}
  #import <Foundation/Foundation.h>

  NSDictionary *headers = @{ @"content-type": @"application/x-www-form-urlencoded" };

  NSMutableData *postData = [[NSMutableData alloc] initWithData:[@"grant_type=http://auth0.com/oauth/grant-type/mfa-oob" dataUsingEncoding:NSUTF8StringEncoding]];
  [postData appendData:[@"&client_id={yourClientId}" dataUsingEncoding:NSUTF8StringEncoding]];
  [postData appendData:[@"&client_secret={yourClientSecret}" dataUsingEncoding:NSUTF8StringEncoding]];
  [postData appendData:[@"&mfa_token={mfaToken}" dataUsingEncoding:NSUTF8StringEncoding]];
  [postData appendData:[@"&oob_code={oobCode}" dataUsingEncoding:NSUTF8StringEncoding]];
  [postData appendData:[@"&binding_code={userEmailOtpCode}" dataUsingEncoding:NSUTF8StringEncoding]];

  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/oauth/token"]
                                                         cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                     timeoutInterval:10.0];
  [request setHTTPMethod:@"POST"];
  [request setAllHTTPHeaderFields:headers];
  [request setHTTPBody:postData];

  NSURLSession *session = [NSURLSession sharedSession];
  NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
                                              completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                                                  if (error) {
                                                      NSLog(@"%@", error);
                                                  } else {
                                                      NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
                                                      NSLog(@"%@", httpResponse);
                                                  }
                                              }];
  [dataTask resume];
  ```

  ```php PHP theme={null}
  $curl = curl_init();

  curl_setopt_array($curl, [
    CURLOPT_URL => "https://{yourDomain}/oauth/token",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_POSTFIELDS => "grant_type=http%3A%2F%2Fauth0.com%2Foauth%2Fgrant-type%2Fmfa-oob&client_id={yourClientId}&client_secret=%7ByourClientSecret%7D&mfa_token=%7BmfaToken%7D&oob_code=%7BoobCode%7D&binding_code=%7BuserEmailOtpCode%7D",
    CURLOPT_HTTPHEADER => [
      "content-type: application/x-www-form-urlencoded"
    ],
  ]);

  $response = curl_exec($curl);
  $err = curl_error($curl);

  curl_close($curl);

  if ($err) {
    echo "cURL Error #:" . $err;
  } else {
    echo $response;
  }
  ```

  ```python Python theme={null}
  import http.client

  conn = http.client.HTTPSConnection("")

  payload = "grant_type=http%3A%2F%2Fauth0.com%2Foauth%2Fgrant-type%2Fmfa-oob&client_id={yourClientId}&client_secret=%7ByourClientSecret%7D&mfa_token=%7BmfaToken%7D&oob_code=%7BoobCode%7D&binding_code=%7BuserEmailOtpCode%7D"

  headers = { 'content-type': "application/x-www-form-urlencoded" }

  conn.request("POST", "/{yourDomain}/oauth/token", payload, headers)

  res = conn.getresponse()
  data = res.read()

  print(data.decode("utf-8"))
  ```

  ```ruby Ruby theme={null}
  require 'uri'
  require 'net/http'
  require 'openssl'

  url = URI("https://{yourDomain}/oauth/token")

  http = Net::HTTP.new(url.host, url.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE

  request = Net::HTTP::Post.new(url)
  request["content-type"] = 'application/x-www-form-urlencoded'
  request.body = "grant_type=http%3A%2F%2Fauth0.com%2Foauth%2Fgrant-type%2Fmfa-oob&client_id={yourClientId}&client_secret=%7ByourClientSecret%7D&mfa_token=%7BmfaToken%7D&oob_code=%7BoobCode%7D&binding_code=%7BuserEmailOtpCode%7D"

  response = http.request(request)
  puts response.read_body
  ```

  ```swift Swift theme={null}
  import Foundation

  let headers = ["content-type": "application/x-www-form-urlencoded"]

  let postData = NSMutableData(data: "grant_type=http://auth0.com/oauth/grant-type/mfa-oob".data(using: String.Encoding.utf8)!)
  postData.append("&client_id={yourClientId}".data(using: String.Encoding.utf8)!)
  postData.append("&client_secret={yourClientSecret}".data(using: String.Encoding.utf8)!)
  postData.append("&mfa_token={mfaToken}".data(using: String.Encoding.utf8)!)
  postData.append("&oob_code={oobCode}".data(using: String.Encoding.utf8)!)
  postData.append("&binding_code={userEmailOtpCode}".data(using: String.Encoding.utf8)!)

  let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/oauth/token")! as URL,
                                          cachePolicy: .useProtocolCachePolicy,
                                      timeoutInterval: 10.0)
  request.httpMethod = "POST"
  request.allHTTPHeaderFields = headers
  request.httpBody = postData as Data

  let session = URLSession.shared
  let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
    if (error != nil) {
      print(error)
    } else {
      let httpResponse = response as? HTTPURLResponse
      print(httpResponse)
    }
  })

  dataTask.resume()
  ```
</AuthCodeGroup>

Si l’appel réussi, vous recevrez une réponse dans le format ci-dessous, contenant le jeton d’accès :

```json lines theme={null}
{
  "id_token": "eyJ...i",
  "access_token": "eyJ...i",
  "expires_in": 600,
  "scope": "openid profile",
  "token_type": "Bearer"
}
```

## En savoir plus

* [Gérer les facteurs d’authentification avec l’Authentication API](/docs/fr-ca/secure/multi-factor-authentication/manage-mfa-auth0-apis/manage-authenticator-factors-mfa-api)
* [Défi-réponse avec les codes de récupération](/docs/fr-ca/secure/multi-factor-authentication/authenticate-using-ropg-flow-with-mfa/challenge-with-recovery-codes)
* [Inscription et défi des authentificateurs OTP](/docs/fr-ca/secure/multi-factor-authentication/authenticate-using-ropg-flow-with-mfa/enroll-and-challenge-otp-authenticators)
* [Inscrire et lancer un défi-réponse pour les authentifiants Push](/docs/fr-ca/secure/multi-factor-authentication/authenticate-using-ropg-flow-with-mfa/enroll-and-challenge-push-authenticators)
* [Facteurs d’authentification SMS et vocaux pour l’inscription et les défis de connexion](/docs/fr-ca/secure/multi-factor-authentication/authenticate-using-ropg-flow-with-mfa/enroll-challenge-sms-voice-authenticators)