[keycloak-user] Uniqueness of user properties

[Stian Thorgersen]

There's an option to enable users to change their username. Enabling that
could result in a user renaming the username, then another user taking the
same username. There's also the situation where a user with a specific
username is deleted, then another user is created with the same username
(maybe years after).

On 12 April 2016 at 01:31, Guus der Kinderen <guus.der.kinderen at gmail.com>
wrote:

> Thanks for the feedback, Niels,
>
> I am primarily concerned about the email address, but as another attribute
> than the username is used to identify things, I thought I'd make sure and
> include that in the question too.
>
> At some point, my customer will probably want non-unique email addresses.
> It's good to know it's at least on the roadmap.
>
> Regards,
>
>   Guus
>
> On 12 April 2016 at 00:50, Niels Bertram <nielsbne at gmail.com> wrote:
>
>> Hi Guus,
>>
>> I can't see how you could manage non-uniqueness of the username as you
>> will need at least one user side unique identifier to drive forget password
>> flow. But the option to have email non-unique has been discussed a while
>> back in the user forum and there is this open Jira
>> https://issues.jboss.org/browse/KEYCLOAK-2141.
>>
>> We have been looking at non-unique emails and essentially one will have
>> to remove the functionality of using email as a form of login from the
>> login flow leaving the user to only be able to use their assigned or
>> selected username as option. We have been trying to "hack" the codebase a
>> bit but have not been too successful in getting keycloak to work properly
>> with non-unique emails :( ...
>>
>> Cheers,
>> Niels
>>
>>
>>
>>
>> On Tue, Apr 12, 2016 at 3:08 AM, Guus der Kinderen <
>> guus.der.kinderen at gmail.com> wrote:
>>
>>> Hello,
>>>
>>> Keycloak uses a UUID value to identify a uses. Basic questions: through
>>> some form of configuration:
>>>
>>>    - Can more than two users exist that have an identical username?
>>>    - Can more than two users exist that have an identical email
>>>    address?
>>>
>>> Regards,
>>>
>>>   Guus
>>>
>>> _______________________________________________
>>> keycloak-user mailing list
>>> keycloak-user at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/keycloak-user
>>>
>>
>>
>
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