What is a sig patch?

Discussion in 'Switch - Exploits, Custom Firmwares & Soft Mods' started by ahdebus, Aug 3, 2018.

  1. ahdebus
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    ahdebus Newbie

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    Aug 3, 2018
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    Noob here obviously. Am reading up as much as I can already in this forum but can't seems to find what a sig patch is and what it does. cfw 101?
     
  2. Soluble

    Soluble GBAtemp Advanced Fan

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    Mar 12, 2017
    Patches signature checks.
     
  3. Zyvyn

    Zyvyn GBAtemp Advanced Maniac

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    essentially apps have checks each time you launch them to see if you should be able to or not sig patches bypass this
     
  4. ahdebus
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    ahdebus Newbie

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    Aug 3, 2018
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    So with this patch,
    Apps like those games I purchase from eshop? Can I say that those NSP files I install have sig patches that bypass the check so that the firmware "thinks" I bought em and so enables the launch?

    Thanks for the explanation.
     
  5. Zyvyn

    Zyvyn GBAtemp Advanced Maniac

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    correct it tricks the console into thinking you have permission
     
  6. ahdebus
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    ahdebus Newbie

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    Aug 3, 2018
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    Thank you once again.
     
  7. darvaak

    darvaak Newbie

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    Jul 24, 2018
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    This is untrue. The nsp files you are downloading and installing outside of the eshop aren't signed by Nintendo to run on your switch. They have a signature that is invalid. In normal stock firmware your switch will detect this and prevent them from running. Currently there is no way to modify nsp's to "trick your console into thinking you have permission".

    Instead, custom firmwares can disable the switch from verifying theses signatures in the first place. This is what sig patching is.
     
    Kafluke likes this.
  8. Zyvyn

    Zyvyn GBAtemp Advanced Maniac

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    I was wasntexplaining how it worked just what it does
     
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