neige d'aoust

knowledge, art, and other stuff

User Tools

Site Tools

Trace: • symbolicjs

Sidebar

Main page

symbolicjs

This is an old revision of the document!

Table of Contents

Notes on JavaScipt obfuscation

Inspired by JSFuck, but here's the rules:

  • 7-bit printable ASCII (32 to 126)
  • No alphanumerics ([a-zA-Z0-9]), no spaces, only `` quotes

Build some strings with keywords

Use either `${<code>}` or (<code>+[]) to obtain useful keywords:

keywordcode
[object Object]{}
true !``
false![]
NaN-`!`
undefined[][[]]
-Infinity~[]/[]

Index the strings with numerals

numbercode
-4~-~-~!``
-3~-~!``
-2~!``
-1~``
-0-``
0+``
1+!``
2-~!``
3-~-~!``
4-~-~-~!``

Build a basic alphabet

code
a$$_=`${![]}`[+!``]
b$_$$$=`${{}}`[-~!``]
c$_$_$=`${{}}`[-~-~-~-~!``]
d$_$$=`${[][[]]}`[-~!``]
e$$=`${!``}`[-~-~!``]
f$$$_$=`${![]}`[-``]
i$$$=`${[][[]]}`[-~-~-~-~!``]
j$$___=`${{}}`[-~-~!``]
l$$_$$=`${![]}`[-~!``]
n$_$=`${[][[]]}`[+!``]
o$___=`${{}}`[+!``]
r$$_$=`${!``}`[+!``]
s$$$$=`${![]}`[-~-~!``]
t$_=`${!``}`[-``]
u$$$_=`${!``}`[-~!``]
y$_$__=`${-~[]/[]}`[-~-~-~-~-~-~!``]
I_$$=`${~[]/[]}`[+!``]
N__$=``${-`!`}`[-``]
O____=`${{}}`[-~-~-~-~-~-~-~!``]
space____$=`${{}}`[-~-~-~-~-~-~!``] 
[,$___,$_$$$,$$___,$$,$_$_,$_,____$,____]={}+[],
[$$$_$,$$_,$$_$$,$$$$]=![]+[],
[,$$_$,$$$_]=!``+[],
[__$]=-`!`+[],
[,_$$,$_$,$$$_$,$$$,$_$,,,$_$__]=~[]/[]+[],
[$$$_,,$_$$]=[][[]]+[]

Build a function

$=(_=>_)[$_$_$+$___+$_$+$$$$+$_+$$_$+$$$_+$_$_$+$_+$___+$$_$]

Build the global object

[,,$__$,$$$$$]=$(`${$$_$+$$+$_+$$$_+$$_$+$_$+____$+$_$$$+$_+$___+$$_}\`((!\``)()
_=$($$_$+$$+$_+$$$_+$$_$+$_$+____$+$_+$$$$$+$$$+$$$$)()
symbolicjs.1747033578.txt.gz · Last modified: by Yuki

Page Tools