I'm trying to make the Wii U's Browser usable again... but I have some questions about root certificate editing

Jediweirdo

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I'm trying to get rid of the infamous 112-2035 error by editing the root certificates located on rootca.pem to include the certification "lets encrypt". The problem is, though, that I need to also include a cross-signed certificate of their parent company IdenTrust in order to get everything to work (as said in this comment)... And I have literally zero clue on how to even correctly edit the PEM file without my internet browser volunteering to contribute to the nearest brick house like this person's browser. Here are a few starting questions I have:

  • Is it actually OK to just copy/paste a certificate without also saying things like it's fingerprint and expiration date (like all the other certificates that Nintendo put on there before anyone else meddled with it)?
  • How the heck do you cross-sign a signature? Is it kind of like adding a regular one?
  • Will only using let's encrypt's certification actually get rid of the 112-2035 error code? Or did I even get that wrong too?

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EDIT^2: Fixed something because fake OCD
 
Last edited by Jediweirdo,

Jediweirdo

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Welp, it's been about a week to no response... I might try to repost this in the future coupled along with other questions
 

soratheultima

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mhh this is something i do for work. I'll see if I can get to it in time. I can't promise anything though, since the Browser isn't frequently updated and the TLS/SSL Methods it accepts might be outdated.
 

V10lator

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soratheultima

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I tried using an SSL Proxy but that just resulted in a 1036 error

Any Older Methods such as the following did not work (not recommended): https://gbatemp.net/threads/mitm-wii-u-ssl-connections.477792/ ->Using the ROOT CA of https://larsenv.github.io/NintendoCerts/index.html Resulted in a Brick (safe due to CBHC) -> Downloaded V20 of Certs from NUS CDN to fix that using an unsafe Wupinstaller.

Using Charles as an SSL Proxy -> instead of error 112-1035 you get 112-1036
If you still want to try to do that, I would suggest doing that in REDNAND or any emunand option.

Or do as V10lator says :) and simply add the data from the github link to the end of the .pem file (open it with a good text editor)
 

theaxd

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i managed to get some websites working again by adding new certificates to the rootca. if you want a copy of my updated rootca.pem i can link it. even when updating the certificates though most websites still give a error 112-1035 so this doesn't just automatically make the browser work on every website but a few will be working again
 

Jediweirdo

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Yeah, some websites still return an error. But now with my rootca certs updated, it's still a lot better than having like 90% of websites giving the error! Thanks for replying to this old thread, but I already got it working on my Wii U thanks to the 2 people who replied to this earlier. I should have said my thanks for them helping me, but if I'm being honest I forgot about this post until now!
 
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