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open-hardware-facebook-recovery Where do I input Facebook's recovery codes? - Web Applications Stack Exchange

Follow the instructions in this guide to build your integration. We strongly recommend using a whitehat bug bounty test account as you open hardware facebook recovery your deployment ready for production and when building any integration tests.

Real Facebook accounts are subject to strict rate limits when performing account recoveries, which makes them unsuitable for testing. This guide will walk through these tasks step-by-step. Most of these tasks involve work on the server side of a web application. The instructions will assume you are using Heroku to deploy and have a bash command line environment available open hardware facebook recovery the Heroku toolbelt and the opensslcurland perl packages installed.

You may choose any technology to implement your server. The Node. There is no requirement to use the Facebook-provided SDKs. You can implement your own in another language, such as Python or PHPusing Facebook's open source code as a guide, or based directly on the specification. Or add the following to the dependencies section of your application's package. All of the necessary information to participate in the protocol is published at a standard location over HTTPS.

The configuration includes a few URLs for the resources used in the protocol, an identity statement for your service, and the open hardware facebook recovery keys that are used to validate tokens.

The configuration location is always in a well-known location on your domain. For example. You should make sure that only administratively privileged users can publish under this path on your domains. The requests to fetch configuration will be made by servers, not browsers. If your web framework blocks requests based on the User-Agent header, or has other "anti-scraping" controls, you should open hardware facebook recovery those checks for the configuration URL so it can be read from anywhere.

The tokensign-pubkeys-secpr1 array contains the current public keys used to sign your recover tokens. The tokensign-pubkeys-secpr1 array contains the current public signing keys used when a token is being saved. The remaining fields describe the protocol endpoints. If your application uses CSRF protection tokens to open hardware facebook recovery all POST requests, you must disable that protection for the recover-account-return endpoint.

Finally there is privacy-policy. While not used directly in the protocol, this is a mandatory field, describing where people and services can read the service's privacy policy. If you follow the advice in this guide to save the recovery provider's origin, the token id, a hash of the token and a reference to the user object to which it belongs, open hardware facebook recovery will not need your previous private keys to validate tokens you have issued in the past, and it is safe to rotate your keys at any time.

If you choose not to save this per-user state at your server, you MUST remember all previous public keys used to sign tokens so you can verify they have not been forged or tampered with when they are used for a recovery.

If you choose to save data in a token, see Advanced Topics you will need an additional symmetric encryption key to protect that data, and you MUST not lose it open hardware facebook recovery you will be unable to recover the data.

The contents of primev1-pub. Both the public and private keys will need to be accessible to the application, but you should be careful not to disclose the private key. Keep it safe, but do open hardware facebook recovery check it into your source control system, for example.

If you are deploying one of our example apps on Heroku, you will need to do the following to publish your configuration:. The following commands will inject the keys into your Heroku application config in the format expected by the sample applications. Then, you will need to configure what origin to publish for your service. You can do this in Herkou for our example apps as follows:.

To publish an Account Provider configuration, use the delegated-recovery-account-provider module as Express middleware. Configure the middleware in your application's main file, which will automatically publish at the well-known location. There are other option keys necessary to finish configuring the middleware. For clarity, these additional options will be discussed in following steps, as they are explained.

Now that you've published your service's configuration where Facebook can read it, next you need to retrieve Facebook's configuration. This is an example configuration - these values will change over time. You always need to fetch a fresh configuration and keep it no longer than the Cache-Control header in the response specifies.

The issuerprivacy-policyand iconpx fields are the same use as for your service's configuration. If you are going to use the data field of a recovery token, you should verify that it is not too big to save. Successfully fetching a correctly formed configuration is an indication that the domain supports the Delegated Account Recovery protocol. When saving a token, the configuration will tell you where to send it.

When doing a recovery, it will tell you where to send the user and the keys for validating the signature on the countersigned token that open hardware facebook recovery returned. To retrieve a configuration in our Node. Now that you have fetched the configuration for Facebook and published your configuration as an Account Provider, you are ready to create a recovery token for a user.

Recovery tokens are saved at Facebook and used later by your service to re-identify the user. You need to make a decision about how to do that re-identification, and what to save in the token. The simplest choice is to save no data in the token. Saving data in a token is for advanced use cases and requires more complicated key management. It is much easier to simply record the token ID and a SHA hash of the token with the user's account data at your service.

This is enough to prove the authenticity and association to the correct user of a token sent back from Facebook, with less cryptographic code to write and less key management overhead.

The following code creates a recovery token with no data and builds open hardware facebook recovery object that can be saved with the local user account to recognize the token later.

Now that you have created a recovery token and saved the relevant information with the user object open hardware facebook recovery your system, you have to send it to the Facebook. You don't know yet if the user and Facebook will accept saving it. You can optionally add a state parameter which Facebook will send back to you. This parameter should not contain confidential information as it may be passed in the query string.

This example will use the token hash as state. At Facebook, the user will log in if necessary open hardware facebook recovery accept saving the token to their account.

In the process of doing this, Facebook will fetch your service's configuration and use it to validate the token signature, present your domain and icon as part of the consent experience, and determine where to send the user after they have either completed saving the token, or declined to.

If the user successfully saved the token, your service will receive open hardware facebook recovery request from the user's browser like:. Your user has saved a recovery token. Time passes, they forget their password or change their phone number, and lose access to your service. It is time to recover. It is up to you to decide how your application will present the introduction to the recovery experience, including identifying their account.

A unique advantage of Delegated Account Recovery is that if your service only uses recovery at Facebook, or the user can identify Facebook as the service they use for recovery, you can send the user to Facebook's recovery endpoint without needing to identify their account at open hardware facebook recovery service first.

You can look it up based on the token data once it is returned. When you are ready to get a countersigned recovery token for the user from Facebook, fetch Facebook's configuration as previously explained.

Send the user's browser to the recover-account endpoint. If you have saved per-user state and know the token ID for the user, you can add its hexidecimal encoded value as the GET parameter id.

This will help Facebook select the correct token, in case the user has more than one token for your service saved at their account. You can also specify issuer as a GET open hardware facebook recovery to help the Recovery Provider filter the tokens offered to the user to only those from your service, if you don't know the token ID.

When the user has satisfied the Facebook as to their identity, Facebook will fetch your service's configuration, wrap the user's recovery token for your service in a countersigned open hardware facebook recovery, and instruct the user's browser to send it to your service's recover-account-return endpoint.

The POST body parameter token will have the countersigned token as a base64 encoded string. A saved recovery token issued by your service is not invalidated at Facebook after a single use. This token persists until the user chooses to delete it and can be used any number of times.

It is always your choice as an application developer open hardware facebook recovery choose the conditions under which you will honor open hardware facebook recovery countersigned token, but it is recommended that you allow the same token to be used more than once. If you want to replace a token after a single use, see obsoleting a token under "Advanced Features", below.

Your service should track, for at least the time open hardware facebook recovery in which a token is valid, the ID or a hash of any countersigned tokens open hardware facebook recovery for recovery and not allow them to be replayed.

This parameter allows you to provide a hint about what account the recovery token refers to. This might be a symbolic name, like "Home Account" or "Work Account", or it might be a masked version of the username or a contact point. Users can always change the nicknames associated with their saved tokens, and the nickname is not returned to the account provider during a recovery.

Nicknames are just to make it easier for people to manage multiple tokens from the same account provider. Facebook will attempt to report token status but will not retry if it cannot be delivered. Use status updates to enhance your user experience but do not count on them. A common open hardware facebook recovery with using email or SMS based recovery mechanisms is that when a person changes their email address or phone number, it is a manual process to update that information on all of their accounts.

Often, they may not realize that their Open Hardware Facebook Zero recovery information is out of date until they need it. Open hardware facebook recovery Account Recovery tries to improve on this by offering token status callbacks.

If you set the low bit of open hardware facebook recovery token "options" byte, it indicates that you wish to receive these callbacks. You must disable any CSRF protections on that path to receive status calls. The POST body contains two parameters. It is up to your application to decide what action to take in response to receiving one of these status events.

Tokens stay attached to a person's Facebook account until they choose to delete them. Although a countersigned token issued by Facebook is intended to be single-use, it is intended that the recovery tokens issued by your service and saved at a Facebook account can be used many times.

The recovery token saved to the account represents a long-term connection, and the counter-signed tokens represent the point-in-time re-authentication event. Because these tokens are data belonging to the account owner, your service cannot remotely delete them, though it is always at your service's discretion whether it open hardware facebook recovery to continue to trust a saved token.

Your service can, with the owner's consent, replace an obsolete token with a new one.

To turn on account recovery, you’ll need to set up an account key: Go to the website or service. Select Facebook when you’re asked how you’d like to recover your account. The Account Recover Facebook page will load. Hi Pamela, Thanks for reaching out to the Facebook help Community. To learn more on how to recover your original Facebook account, visit our Help Center. The recovery codes are used for 2 Factor Authentication if you don't have your phone. So after you log into Facebook on a new device, you would enter the recovery code instead of the code that gets SMSed to you (or you get out of an authenticator app like Google Authenticator).

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