[keycloak-user] Keycloak customised credential model

[Pedro Igor Silva]

Maybe this can help?

https://www.keycloak.org/docs/latest/server_development/index.html#_extensions_jpa

On Wed, Aug 1, 2018 at 9:25 AM, Mangna POUTOULI <mangna.poutouli at gmail.com>
wrote:

> We desire to create customised credential SPI for device fingerprinting. We
> developed an authenticator SPI but we got an issue about credential size.
> By default standard credential model limits the secret attribute to 4 KB.
> Our fingerprint requires around 30 KB. What is the best way to solve this
> issue ? Based on our research, I think there are 3 different approaches:
>
>    1. split the fingerprint in 4K blocks. Simple to develop but it will
>    increase credential table entries by 8 ! Also, the 4K default size might
>    change in a future release.
>    2. extend userstorage and credentialModel classes. I’m not sure of this
>    solution as the users are local to Keycloak.
>    3. extend UsercredentialStore and create a new credential table.
>
> From my perspective, this should be the best solution but not sure it will
> be possible. I’ll be happy to get community advice. Thanks,
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