AWS Cognito

This documentation provides detailed information on generating the Cognito cognitoAsfData.

What is Castle?

AWS Cognito is used by some platforms for secure authentication based on browser details.

The Token

When interacting with Cognito-protected endpoints, you must include a valid cognitoAsfData. This token is generated using various browser-specific factors as well as the mail you are trying to login with.

An example website using it is Ticketmaster SG.