- Thread starter PantsuDelver
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- Dec 29, 2023
- 13
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good for you but this is not my point anyway... i am just saying unlock it after the completion for free
I put the code in this fork, it ought to work. Or it did a few months ago, at least. They've used this ridiculous custom format and hidden the key away in a binary DLL. I found it by disassembling.
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- Jun 13, 2017
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Could you explain it for those of us that aren't very well versed when it comes to these things? I'm not quite sure what you mean.
RPA normally uses a standard format to store the information called RPA-3. The data is encrypted in the simplest possible way by taking the binary exclusive or (XOR) of each byte with a provided integer, the key. The key can be found in a standard place in the RPA file, making it rather pointless to be honest. It then uses a normal off-the-shelf compression method to decompress the data.
This particular product did it different. They've come up with a custom method, and they've called it RPA-9.1 for some reason. It uses the same normal compression as RPA-3, and the same XOR technique, but the key isn't available in the standard place. It's hidden in a compiled, binary DLL and accessed by some custom python code. Much more significantly though it also has another trick up its sleeve: once the data is uncompressed and decrypted, it's all sent to the DLL for further processing. Some native, compiled code uses a very long key to then XOR the entire file a second time, and returns it to Renpy. The process is all obfuscated somewhat, including code that deliberately doesn't do anything to throw off anyone trying to work it out, though not very effectively. I just wrote some python code that does what the DLL does and included it inside unrpa.
Not going to lie this was mostly a waste of time that I did out of sheer spite.
- Jun 13, 2017
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I don't suppose you could give me very simple, step by step instructions on what to do with everything?
Sorry, I'm both exhausted and inexperienced with this sort of thing, I've played with much more simplistic stuff, but this is giving me a headache.
ngl i didnt understand most of it but this sounded pretty cool.i guess thats why the renpy editor mod didn't work for me way back when I just wanted to change the name of the mc
If you just want to be able to extract this game I made the python module into a Windows exe. You should just be able to extract and point it at the archive, in a command line.
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- Dec 10, 2019
- 49
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I don't know, guys. Someone else posted their GitHub with the same thing almost a year ago in this same thread. If you wanted to unren the game, you could've done it a long time ago.
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Whatever? I already said I did this months ago. I was just sharing the script. Now you can unpack it whenever if you want. Who cares.
- Jun 13, 2017
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So I keep getting an error "no such file" in regards to an extraction location. I've tried extracting to multiple different places with no success.
- Jun 25, 2018
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The Dev is really smart and i support him hiding the Gallery or any kind of content behind the Paywall. I'm sure most of us would do the same if we had the opportunity.
You're the real one. Thanks
- Dec 10, 2019
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Bro, you okay? Creating a new account for every message? Can't remember a password?