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Support Biscuit as an access token format #2582

Open mooreds opened 9 months ago

mooreds commented 9 months ago

Support Biscuit as an access token format

Problem

Biscuit is another form of signed tokens. Major benefit (per HN) is that it allows for attenuation of tokens without contacting an authorization server.

Would be interesting to hear the community's desire for implementing this as an access token format, hence this issue.

Solution

Have a per-tenant option to have access tokens generated as biscuit tokens rather than JWTs.

Alternatives/workarounds

n/a

Additional context

There is a java lib for this: https://github.com/biscuit-auth/biscuit-java

Main website: https://www.biscuitsec.org/

Blog post about Biscuit and OAuth: https://www.biscuitsec.org/blog/oauth-oidc/

Community guidelines

All issues filed in this repository must abide by the FusionAuth community guidelines.

How to vote

Please give us a thumbs up or thumbs down as a reaction to help us prioritize this feature. Feel free to comment if you have a particular need or comment on how this feature should work.

justin-hughey-github commented 8 months ago

How about Simple Random Tokens?

https://fly.io/blog/api-tokens-a-tedious-survey/

mooreds commented 8 months ago

@justin-hughey-github Thanks for the feedback. That's probably a separate issue; feel free to file it with more details about your use case.

However, JWTs issued by FusionAuth can gracefully degrade to simple random tokens if you treat the JWTs you receive as opaque tokens (never examine them on the client or the resource server), put minimum information in them (using the JWT populate lambda to strip out as much as you can), and always use the introspect endpoint to validate them.