How to wrap a JAR file to a binary in linux?

[Leon945]

Hi,

I have a jar with some very important code that i wish is never looked at.
Is there someway to wrap this in a .bin or something similar for it to be executed in linux?

[svidgen]

Sure. But any code that needs to be executed ultimately needs to be read. And while you can store it up in an encrypted and/or compiled form, it ultimately needs to be sensible enough to execute.

[Leon945]

I understand it may not be 100% unreachable, but if theres an option to at least hide it, something equivalent to an exe in windows maybe?

[criterion9]

A JAR is already compiled code...you aren't including the .java files in the JAR are you?

[svidgen]

Don't kid yourself. EXE's are de-compilable. Not necessarily into the original source, but into perfectly readable VS projects: http://stackoverflow.com/questions/1...rp-source-code

[Leon945]

.class files are way too easy to decompile.

Ok, well since i have no better ideas, i think this would be the way to go for now.
Do you know a way to wrap a jar into a .bin or something similar?

[svidgen]

Encrypt the jar and write a quick c app that decrypts the jar and pipes the result through the java -jar, assuming it executes STDIN.

[Leon945]

Encrypt the jar and write a quick c app that decrypts the jar and pipes the result through the java -jar, assuming it executes STDIN.

thanks, i'll look into that

[svidgen]

I'll reiterate though: Anything sitting on a user's machine is ultimately readable by the user through some amount of effort.

Dare I ask what's so important that it never be looked at?

[Leon945]

I understand that, i really do, but i don't have options.

The problem is there is an ecryption key written within the code itself, and is supposed to be top secret. I don't know why they decided it be like this, but it's not up to me.