# What is Identity Provider?

Central service that verifies user login information and provides secure access to applications.

## Overview
It allows you to prove your identity through a central system, instead of creating a new password every time for an application. The application asks this service who you are and gets confirmation.

*Analogy: It's like showing your passport at a hotel reception and getting a key card; He relies on the reception's approval to enter his hotel room.*

## How it works
The user logs in, the service authenticates and sends a 'logged in' key to the app.

## Where it is used
It is used in on-premises systems, SSO (Single Sign-On) structures and modern web applications.

## Commonly confused with
It's not just a password manager, it's an authentication authority.

## Frequently asked questions
**Is it safe?**
Yes, it is more secure because you do not give your password to every application.

**What happens if the system crashes?**
Since it is a central service, access to all connected applications can be interrupted.


## Related terms
- [SSO](/en/dictionary/sso/)
- [OIDC](/en/dictionary/oidc/)
- [RBAC](/en/dictionary/rbac/)

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Source: TreScout Dictionary · https://trescout.com/en/dictionary/identity-provider/