What is an Authentication Token? (2024)

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An Authentication Token (auth token) is a piece of information that verifies the identity of a user to a website, server, or anyone requesting verification of the user's identity.

Auth Tokens add an extra layer of security, along with having the additional benefit of being easily scalable and providing better access control. In terms of scalability, authentication tokens contain the data needed to verify a user's identity, and are stored locally on a user's device. They have negligible impact on a user's hardware, and therefore can be scaled to an arbitrarily large number of users. Since each token can store user-specific data, auth tokens can tell a server what amount of access to give to a user, providing access control to the server distributing authentication tokens.

Auth tokens come in the form of hardware or software tokens:

  • Hardware Tokens will check authentication through a physical object. Should the right drive, key, card, or other object be properly used with the device requesting access, then the authentication token is distributed to the device, allowing the device access to the corresponding website or server.
  • Software Tokens share the same purpose of hardware tokens, but do so through an on-device software application rather than a physical object. Many use two-factor-authentication (2FA) which will give a token upon confirmation with a second device. Common methods associated with 2FA are sending a code to a trusted phone number, authentication app, or email, which must then be used as input to obtain the authentication token.

Once this additional layer of software-based authentication is passed, the application or server will give the user an authentication token, which is similar to a ticket allowing the user to access the site. Like a ticket, authentication tokens outline the duration of validity and scope of access which will grant the user access until expiry.

On the Networking-Level

on-the-networking-level page anchor

Typically, the user will send the server or application a JSON Web Token(JWT), which is a standard set in RFC7519. A JWT is made up of three parts: a header, a payload, and a signature.

  • The Header outlines what algorithm the machine will use to generate the signature.
  • The Payload outlines claims that the server will use to verify the user's identity.
  • The Signature validates the token, and ensures that the token has not been changed in delivery.

The information is encrypted, concatenated together with periods, and then sent over to the server. Once the server receives it and verifies the information, the server will return an authentication token, which grants access and outlines the lifetime of the token. This token is then saved locally (within the browser or through cookies) and can be checked every time the user accesses the site. Once the token expires, it is removed from local storage, requiring the user to authenticate again.

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What is an Authentication Token? (2024)

FAQs

What is my authentication token? ›

These tokens are the digital version of a stamped ticket to an event. The user or bearer of the token is provided with an access token to a website until they log out or close the service. An authentication token is formed of three key components: the header, payload, and signature.

What is an example of a authentication token? ›

A token-based authentication example that uses OAuth is when someone needs to give another app data access to a specific account. Another example is giving Zoom minimal data privileges to a Google account to sync with the calendar.

What is my verification token? ›

A verification token is something that proves that a particular Google user owns a particular Search Console property. The token can be a unique web page or <meta> tag on the homepage, associated with that person, or any of several other mechanisms.

How do I pass an API authentication token? ›

The second way to pass your API token is via a query parameter called key in the URL like below. Use of the X-Dataverse-key HTTP header form is preferred to passing key in the URL because query parameters like key appear in URLs and might accidentally get shared, exposing your API token. (Again it's like a password.)

What is an example of a token? ›

In general, a token is an object that represents something else, such as another object (either physical or virtual), or an abstract concept as, for example, a gift is sometimes referred to as a token of the giver's esteem for the recipient.

How do I create an authentication token? ›

If you will use an API key for authentication:
  1. Open secret. ...
  2. Paste it in the field provided.
  3. Provide the required sample Parameters requested.
  4. Click Generate to produce a corresponding Token.io web app URL.
  5. Click Test to link to the Token.io web app and see the UI that will be presented to a customer.

How do you handle an authentication token? ›

Token Authentication in 4 Easy Steps
  1. Request: The person asks for access to a server or protected resource. ...
  2. Verification: The server determines that the person should have access. ...
  3. Tokens: The server communicates with the authentication device, like a ring, key, phone, or similar device.

What is basic authentication token? ›

Basic authentication is a very simple authentication scheme that is built into the HTTP protocol. The client sends HTTP requests with the Authorization header that contains the Basic word followed by a space and a base64-encoded username:password string.

How to get access token? ›

Get Access Tokens
  1. To request an access token , make a POST call to the token URL.
  2. When a user authenticates, you request an access token and include the target audience and scope of access in your request. ...
  3. In only one specific instance, access tokens can have multiple target audiences.

How do I validate my authentication token? ›

You can validate your tokens locally by parsing the token, verifying the token signature, and validating the claims that are stored in the token. Parse the tokens. The JSON Web Token (JWT) is a standard way of securely passing information. It consists of three main parts: Header, Payload, and Signature.

What is my device token? ›

Android device tokens

Your app's users are assigned a token when the user grants permission to receive notifications. Android 12 and Earlier assume that users permit to receive push notifications by default.

What is a token in a password? ›

One-time password (OTP) tokens are secure hardware devices or software programs that can generate one-time passwords. Most commonly, these are personal identification numbers (PIN), numeric codes between 4-12 digits. Smartphones are commonly used to generate or receive one-time passwords.

What is token in authentication? ›

In access management, servers use token authentication to check the identity of a user, an API, a computer, or another server. A token is a symbolic item issued by a trusted source — think of how law enforcement agents carry a badge issued by their agency that legitimizes their authority.

What is an example of API token authentication? ›

Depending upon the API token authentication process adopted, the process can also use the SSO or Single-Sign-on token. The best example of this is using Facebook login details for 3rd party services. Such tokens remain active only for a limited time and prevent creating different login details for different services.

What is an example of authentication and authorization? ›

In simple terms, authentication is the process of verifying who a user is, while authorization is the process of verifying what they have access to. Comparing these processes to a real-world example, when you go through security in an airport, you show your ID to authenticate your identity.

How do I find my device token? ›

Connect the device to your computer, and choose this device in the list of devices on the left side > Console. Launch the application you need to get the device push token for. Locate your 64 hexadecimal characters device push token in the "Registered for push notifications" line.

How do I get my access token from authentication? ›

Get Access Tokens
  1. To request an access token , make a POST call to the token URL.
  2. When a user authenticates, you request an access token and include the target audience and scope of access in your request. ...
  3. In only one specific instance, access tokens can have multiple target audiences.

How do I find my token symbol? ›

In most cases, the token symbol and token decimal will autofill. If they don't, head to the network's block explorer and find the token. Its symbol and decimals will most likely be displayed.

How do I find my access token code? ›

Fill out token activation form at bank with account number, phone, and email. Pay activation fee of N1,500 for enhanced security. Receive unique time-sensitive security code from token device. Download Entrust Identity app and follow bank agent's guidance.

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