Sign in with Apple Nonce Reuse Error after update

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oathswornsoftware asked Jun 27, '23

Sign in with Apple Nonce Reuse Error after update

Hiya,

Need some help here please as I have been at it for at least a week!

After retrieving the ID token from Apple I keep getting Error NotAuthorised Token nonce reuse is not permitted nonce values must be unique, etc etc.

I have checked the ID token and they are different every sign in so I am very confused.

The ID is the same every time (Obviously) Raw Nonce is 00000000000000000000000000000 (not using this anyway)

I have upgraded a project from UE 5.1 to UE 5.2 and updated the plugin. This still works fine on the App Currently published on the App Store.

I have tried

copying the Playfab plugin to the plugins folder in the project.
Adding a "do once node" incase i am double firing (yes in desperation)
Rebuild a new project
Deleted all intermediate and build folders and rebuilding
Deleted and rewrote the Playfab login flow in my app.
Tried a different Apple ID
Viewed the IDTokens from the device to ensure they were different.

Thanks for any insights in advance!

Authentication

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Answer 1 · 2023-06-27T09:53:38Z

Xiao Zha answered Jun 27, '23

Since the error message indicates that you are reusing nonces. You can try logging in Apple with a different nonce to see if the problem persists.

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oathswornsoftware commented · Jul 03, 2023 at 01:34 AM

Initially thought this was a poor answer as I was using a plugin and was told the nonce was randomly generated.

Turns out that this answer prompted me to do more digging and after a bit of back and forth with the plugin developer the plugin I was using had developed a bug!

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