Amazon Cognito has several authentication methods, including client-side, server-side, and custom flows. User pools have flexible challenge-response sequences that enhance sign-in security beyond passwords.

Amazon Cognito supports multiple flows for authentication requests. These flows define how your users can verify their identity. The decision about which authentication flow to use depends on specific requirements of your application and can become complex.

The process of authentication with Amazon Cognito user pools can best be described as a flow where users make an initial choice, submit credentials, and respond to additional challenges. When you implement managed login authentication in your application, Amazon Cognito manages the flow of these prompts and challenges.

Engineers who use Amazon Cognito for machine-to-machine authentication select a primary Region where they deploy their application infrastructure and the Amazon Cognito authorization endpoint. Amazon Cognito is a highly available service in single Region deployments with a published service-level […]

Aug 13, 2018 · In this blog post walkthrough, we show you how to federate identities from Windows Server Active Directory to authenticate users into your web app by leveraging AWS services. The main AWS service that we’ll use for this purpose is Amazon Cognito.

Oct 18, 2019 · In this post, I will show how to leverage Amazon Cognito user pools to customize your authentication flows and allow logging into your applications using Amazon Rekognition for facial recognition using a sample application.

Primarily Amazon Cognito supports the following authentication flows: USER_SRP_AUTH - Authentication flow for the Secure Remote Password (SRP) protocol. Your app collects your user's user name and password and generates an SRP that it passes to Amazon Cognito, instead of plaintext credentials.

Jun 26, 2022 · Implicit Grant Flow – An OAuth 2.0 flow used to grant access tokens to users. This flow has security loopholes and should be avoided. Authorization Code Flow – An OAuth 2.0 flow used to grant authorization codes to users, which are then exchanged for access tokens.

Feb 18, 2025 · One relatively simple and affordable cloud-based solution is AWS Cognito. It implements best practices and offers powerful functionality that can be set up within minutes. In this article, I’ll...

The basic authentication flow delegates the logic of IAM role selection to your application. In this flow, Amazon Cognito validates your user's authenticated or unauthenticated session and issues a token that you can exchange for credentials with AWS STS.