what is 3ds Common Key? and how do i get mine?

Discussion in '3DS - Flashcards & Custom Firmwares' started by xdarkmario, Aug 29, 2015.

  1. xdarkmario
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    xdarkmario Philosopher

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    im trying to Sign a .CIA file but makerom is spitting out a error

    [CIA WARNING] Common Key could not be loaded, CIA will not be encrypted

    what is the Common Key, how do i get it? (no link but how do i get it)

    i have the key itself but no idea what to do with that.
     
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  2. Vappy

    Vappy GBAtemp Advanced Maniac

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    You can ignore that warning, the .cia file will still install fine.
     
  3. Suiginou

    Suiginou (null)

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    For your information: The "common key" is the AES key used to decrypt the titlekey in the ticket bundled in the CIA. The titlekey itself is used to decrypt the contents bundled in the CIA/on Nintendo's CDN.

    The common key cannot be recovered right now due to the hardware-based AES key scrambler and unavailability of the bootrom.
     
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  4. xdarkmario
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    xdarkmario Philosopher

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    it does not install fine, i get a error in gateway mode

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    the key is out there, if not then why would the app give that error?
     
  5. Suiginou

    Suiginou (null)

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    No, the key is not out there:

    "The common key cannot be recovered right now due to the hardware-based AES key scrambler and unavailability of the bootrom."
     
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  6. xdarkmario
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    xdarkmario Philosopher

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    well then what do i do about that error?

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    if i try to install the cia in gateway mode, i get import failed. file theme_test.cia this cia is invalid (0xD8E08025)
     
  7. Vappy

    Vappy GBAtemp Advanced Maniac

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    Then it's something else you've done wrong in building the .cia. It being unencrypted won't stop it installing in Gateway mode, most of the rebuilt and distributed .cia files are unencrypted.
     
  8. xdarkmario
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    xdarkmario Philosopher

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    well im new to make cia but this is what im do is compile a theme into a cia using this tool
    Capture.PNG
    the cia installs fine in reinand but in gateway mode it gives that error and if i install it in reinand then go to gateway nand i get a error saying the theme management is corrupt.
     
  9. Vappy

    Vappy GBAtemp Advanced Maniac

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    Oh, I didn't realize it was a theme you were trying to install. I could be wrong, but I'm pretty sure I remember Gateway mode being incompatible with installing themes as .cia. Maybe try installing the theme using one of the homebrew tools instead?
     
  10. xdarkmario
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    xdarkmario Philosopher

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    I did, it works now, but before it gave me trouble. But I want a installable version for professionalism purposes.
     
  11. Vappy

    Vappy GBAtemp Advanced Maniac

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    Then don't use Gateway mode until they release an update that allows for pirated themes?
     
  12. kazehaya

    kazehaya Member

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    You can't use themes from different region than your 3ds.
     
  13. xdarkmario
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    xdarkmario Philosopher

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    But this theme was born in USA and so is my N3ds.
     
    Last edited by xdarkmario, Sep 3, 2015