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OAuth2, JWT, and JWKS: Using Amazon Cognito as IDP
- OAuth2 protocol defined how inter-connected applications should communicate with each other without compromising the security of the transmitted data ensuring its authenticity.
- Using JWT tokens and validating with JWKS to implement OAuth2 protocol securely.
- Bearer Token is the access token that can be used to grant access to the APIs via Header. JWT is the most widely adopted implementation format but, there is no defined standard for it in OAuth2 protocol.
- JWT token standard format allows it to carry user claims along with access authorization.
- JWKS plays an important role in public key management in case of JWT usage in OAuth2 protocol for fetching JSON containing the collection of public keys.
- AWS Cognito is an Identity Provider that manages identity and access for user data storage, validation, and authentication purposes.
- The article also provides a demo on how we can integrate Cognito using AWS SDK for user authentication and token validation against JWKS.
- The tutorial is intended for beginners to get them familiar with OAuth2 protocol, JWT, and JWKS concepts and their functions in secure application communication.
- The tutorial also provides tips and guidelines to follow for securing user data and avoiding malicious attacks or fraud within applications.
- References to the official documentation are included to learn more about AWS Cognito and other related topics.
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