Upgrade to Pro — share decks privately, control downloads, hide ads and more …

orrfuscation

Avatar for Mattia Larentis Mattia Larentis
May 08, 2013
Programming
0
140

 orrfuscation

A lightning talk about "obfuscation" in javascript. Never trust sheep.

Avatar for Mattia Larentis

Mattia Larentis

May 08, 2013
Tweet

More Decks by Mattia Larentis

See All by Mattia Larentis
Going isomorphic with Django and React
Avatar for Mattia Larentis nostalgia
0
520
django loves gulp
Avatar for Mattia Larentis nostalgia
0
160
The evolution of CSS - 2
Avatar for Mattia Larentis nostalgia
1
110
The evolution of CSS
Avatar for Mattia Larentis nostalgia
4
310
jQuery
Avatar for Mattia Larentis nostalgia
4
440

Other Decks in Programming

See All in Programming
ABEMAモバイルアプリが
Kotlin Multiplatformと歩んだ5年 ─ 導入と運用、成功と課題 / iOSDC 2025
Avatar for Akio Yasui akkyie
0
260
楽して成果を出すためのセルフリソース管理
Avatar for clipnote clipnote
0
210
Serena MCPのすすめ
Avatar for wadakatu wadakatu
4
600
CSC305 Lecture 03
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
0
180
Reduxモダナイズ　〜コードのモダン化を通して、将来のライブラリ移行に備える〜
Avatar for pvcresin pvcresin
2
600
Introducing FrankenPHP gRPC
Avatar for Kévin Dunglas dunglas
2
1k
「社内LT会」を1年続けてみた！ / Our Year-Long Journey of Internal Lightning Talks
Avatar for mackey0225 mackey0225
1
110
Astroの使用感とディレクトリ設計についての考察
Avatar for Saku saku0109
0
150
2025年版 サーバーレス Web アプリケーションの作り方
Avatar for Hayato Watanabe hayatow
23
24k
AIで開発生産性を上げる個人とチームの取り組み
Avatar for TaniiGo taniigo
0
120
チームのテスト力を鍛える
Avatar for Hiroki Iseri goyoki
4
1.2k
10年もののAPIサーバーにおけるCI/CDの改善の奮闘
Avatar for masato hommaru mbook
0
380

Featured

See All Featured
Reflections from 52 weeks, 52 projects
Avatar for Jefferson Lam jeffersonlam
352
21k
GitHub's CSS Performance
Avatar for Jon Rohan jonrohan
1032
460k
Git: the NoSQL Database
Avatar for Brandon Keepers bkeepers
PRO
431
66k
Evolution of real-time – Irina Nazarova, EuRuKo, 2024
Avatar for Irina Nazarova irinanazarova
8
940
Learning to Love Humans: Emotional Interface Design
Avatar for Aarron Walter aarron
274
40k
We Have a Design System, Now What?
Avatar for Morgane Peng morganepeng
53
7.8k
StorybookのUI Testing Handbookを読んだ
Avatar for Shingo Yamazaki zakiyama
31
6.1k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
Avatar for Dan Newman danielanewman
229
22k
Making Projects Easy
Avatar for Brett Harned brettharned
118
6.4k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
Avatar for Eileen M. Uchitelle eileencodes
140
34k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
Avatar for Morgane Peng morganepeng
132
19k
Practical Orchestrator
Avatar for Shlomi Noach shlominoach
190
11k

Transcript

  1. orrfuscation

  2. April 18 at 9:03pm

  3. ([]+{})[!0<<-~(1<<1)]+ ([]+!-[])[1<<1-1]+([]+!- [])[1<<1-1]+unescape((/ %/+[[]+1/!1])[1]+(/1/ [1]+[])[1%1]+(+!1)+(+! 1)+(/<</[1]+[])[1<<- ~(1^1)<<!0]+([]+!!-[]) [~~(1^1)+!0])

  4. brainfuck?

  5. linguaggio “nomale”?

  6. javascript!

  7. ([]+{})[!0<<-~(1<<1)]+ ([]+!-[])[1<<1-1]+([]+!- [])[1<<1-1]+unescape((/ %/+[[]+1/!1])[1]+(/1/ [1]+[])[1%1]+(+!1)+(+! 1)+(/<</[1]+[])[1<<- ~(1^1)<<!0]+([]+!!-[]) [~~(1^1)+!0])

  8. Orrú

  9. ([]+{})[!0<<-~(1<<1)]

  10. []+{} “[object Object]”

  11. “[object Object]”[!0<<-~(1<<1)]

  12. !0 1

  13. (1<<1) 2

  14. ~2 -3

  15. 1<<3 8

  16. “[object Object]”[8] “O”

  17. ([]+!-[])[1<<1-1]

  18. -[] 0

  19. []+!-[] “true”

  20. “true”[1<<1-1]

  21. 1<<1 2

  22. “true”[1] “r”

  23. unescape((/%/+[[]+1/!1]) [1]+(/1/[1]+[])[1%1]+(+! 1)+(+!1)+(/<</[1]+[]) [1<<-~(1^1)<<!0]+([]+!!- [])[~~(1^1)+!0]) “ú”

  24. “O” + “r” + “r” + “ú”

  25. None