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# dex - A federated OpenID Connect provider
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[](https://godoc.org/github.com/coreos/dex)
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Dex is an OpenID Connect server that allows users to login through upstream identity providers. Clients use a standards-based OAuth2 flow to login users, while the actual authentication is performed by established user management systems such as Google, GitHub, FreeIPA, etc.
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[OpenID Connect][openid-connect] is a flavor of OAuth that builds on top of OAuth2 using the JOSE standards. This allows dex to provide:
* Short-lived, signed tokens with standard fields (such as email) issued on behalf of users.
* "well-known" discovery of OAuth2 endpoints.
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* OAuth2 mechanisms such as refresh tokens and revocation for long term access.
* Automatic signing key rotation.
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Standards-based token responses allows applications to interact with any OpenID Connect server instead of writing backend specific "access_token" dances. Systems that can already consume ID Tokens issued by dex include:
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* [Kubernetes][kubernetes]
* [Amazon STS][amazon-sts]
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## Documentation
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* [Getting started ](Documentation/getting-started.md )
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* [What's new in v2 ](Documentation/v2.md )
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* [Storage options ](Documentation/storage.md )
* [Intro to OpenID Connect ](Documentation/openid-connect.md )
* [gRPC API ](Documentation/api.md )
* Identity provider logins (coming soon!)
* Client libraries (coming soon!)
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## Getting help
* For bugs and feature requests (including documentation!), file an [issue][issues].
* For general discussion about both using and developing dex, join the [dex-dev][dex-dev] mailing list.
* For more details on dex development plans, check out the GitHub [milestones][milestones].
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[openid-connect]: https://openid.net/connect/
[kubernetes]: http://kubernetes.io/docs/admin/authentication/#openid-connect-tokens
[amazon-sts]: https://docs.aws.amazon.com/STS/latest/APIReference/Welcome.html
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[issues]: https://github.com/coreos/dex/issues
[dex-dev]: https://groups.google.com/forum/#!forum/dex-dev
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[milestones]: https://github.com/coreos/dex/milestones
