How private is my code in WebAssembly?


How private is my code in WebAssembly?



I have some c++ binary running on my web server that does some calculations and I was thinking about moving it to the user side using Webassembly. My question is how private will my c++ code be? Is it possible to transform a compiled Webassembly file back to c++?




1 Answer
1



How private is it? Not private at all. Your WebAssembly code is delivered over HTTP to the client's machine where it is executed. It is obfuscated a little, but hardly private.



The code is delivered in a binary format, however using readily available tools, e.g. wasm2wat, this can easily be converted into a human readable text format. The text is a relatively low level language, but still quite readable. It will not protect your algorithms, it will simply take people a little longer to understand them.


wasm2wat



WebAssembly is not readily transformable back to higher level languages (e.g. C++), but this does not make your algorithm private.






By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

-

Popular posts from this blog

How to input without newline? (Python)

How to input without newline? (Python) I am trying to create a simple file editor in Python via the console (called PyCons). Here is my current program: def PyCons(f): file = open(f, "r") appe = open(f, "a") print("n=====nPyCons Editor, v1.2nPython 3.6.1n") global i i = 0 for line in file: i += 1 print(" {}| ".format(i) + line, end='') for k in range(10000000000000): print("n {}| ".format(i+1), end='') inp = input("") if inp == "@PyCons.save()": print("n=====") break else: i += 1 appe.write("n" + inp) I used the end method to make sure that the existing code in the file was printed properly in its line format, but the input function does not have an end attribute. So, when I go to enter code in the editor: end input end PyCons("magic.html") ... ===== PyCons Editor, v1.2 Python 3.6.1 1| <p>Hello!...
Read more

C++ thread error: no type named ‘type’ MINGW

C++ thread error: no type named ‘type’ MINGW I'm currently doing a project for my operational systems class and I have to make a program to find prime numbers to run in threads. So I did this: #include <iostream> #include <cmath> #include <thread> #define THREADNUMBER 100 using namespace std; int CONTADOR = 0; int CONTADORTHREADEXECUTADA = 0; int primeRange(int v1, int v2) { int a, limit; bool isprime; for (int i = v1; i <= v2; i++) { if (i % 2 != 0 && i % 3 != 0) { isprime = true; limit = i / 2; if(i == 1) isprime =false; limit = (int)sqrt(i); //General case for(a=2; a <= limit; a++){ if(i % i == 0 && i != 2){ isprime = false; break; } } if (isprime) { CONTADOR++; } } } CONTADORTHREADEXECUTADA++; return 1; } int main(int argc, char *argv[ ] ) { int number1 = atoi(argv[1]); int num...
Read more

Analog for TagView in flutter

Image
Analog for TagView in flutter I want to have UI like this: With native Android it can be done with libraries like https://github.com/whilu/AndroidTagView, how can it be done with flutter? 2 Answers 2 you can make the same UI by combining the Wrap and Chip widget as @wasyl montioned . but this is a full example about what you need Wrap Chip Notes : spacing deleteIcon avatar Chip Shape new Column( crossAxisAlignment: CrossAxisAlignment.stretch, children: <Widget>[ new Wrap( children: <Widget>[ Chip( label: new Text("Java"), onDeleted: () {}, labelPadding: EdgeInsets.all(2.0), deleteIcon: Icon(Icons.clear), ), Chip( label: new Text("C++"), onDeleted: () {}, labelPadding: EdgeInse...
Read more