Topic Snapshot: Download the compiled Java file (.class) and provide to a Java decompiler (www.javadecompilers.com) to get the Java source ... 00:00 Intro 00:25 'files' 00:45 Creating our own .class file 01:50 'strings' 02:15 Flag!

Picoctf Safe Opener 2 - General Reference Context

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General Reference Context

In this video we decompile a small program written in Java to understand how it works and find the flag! Download the compiled Java file (.class) and provide to a Java decompiler (www.javadecompilers.com) to get the Java source ... 00:00 Intro 00:25 'files' 00:45 Creating our own .class file 01:50 'strings' 02:15 Flag!

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Important details found

  • Download the compiled Java file (.class) and provide to a Java decompiler (www.javadecompilers.com) to get the Java source ...
  • 00:00 Intro 00:25 'files' 00:45 Creating our own .class file 01:50 'strings' 02:15 Flag!
  • In this video we decompile a small program written in Java to understand how it works and find the flag!

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Media Gallery

picoCTF Safe Opener 2
Decompiling Java Code! (picoCTF 2023 "safe opener 2")
picoGym (picoCTF) Exercise: Safe Opener 2
pico2022 safe opener
picoCTF Safe Opener 2
Tutorial PicoCTF 2025 (181): Reverse Engineering: Reverse, Safe Opener 2
PicoCTF Walkthru [104] - Safe Opener 2 (Java class file reversing)
picoCTF - Safe Opener
Hidden Cipher 2 | Reverse Engineering | PicoCTF 2026
Java Code & Base64 Encoding (PicoCTF 2022 #21 'safe-opener')
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Open Topic Snapshot
picoCTF Safe Opener 2

picoCTF Safe Opener 2

Download the compiled Java file (.class) and provide to a Java decompiler (www.javadecompilers.com) to get the Java source ...

Decompiling Java Code! (picoCTF 2023 "safe opener 2")

Decompiling Java Code! (picoCTF 2023 "safe opener 2")

In this video we decompile a small program written in Java to understand how it works and find the flag! Help support the channel ...

picoGym (picoCTF) Exercise: Safe Opener 2

picoGym (picoCTF) Exercise: Safe Opener 2

Read more details and related context about picoGym (picoCTF) Exercise: Safe Opener 2.

pico2022 safe opener

pico2022 safe opener

Read more details and related context about pico2022 safe opener.

picoCTF Safe Opener 2

picoCTF Safe Opener 2

Read more details and related context about picoCTF Safe Opener 2.

Tutorial PicoCTF 2025 (181): Reverse Engineering: Reverse, Safe Opener 2

Tutorial PicoCTF 2025 (181): Reverse Engineering: Reverse, Safe Opener 2

Read more details and related context about Tutorial PicoCTF 2025 (181): Reverse Engineering: Reverse, Safe Opener 2.

PicoCTF Walkthru [104] - Safe Opener 2 (Java class file reversing)

PicoCTF Walkthru [104] - Safe Opener 2 (Java class file reversing)

00:00 Intro 00:25 'files' 00:45 Creating our own .class file 01:50 'strings' 02:15 Flag! 02:20 Examining the .class file 02:45 JD-GUI ...

picoCTF - Safe Opener

picoCTF - Safe Opener

Read more details and related context about picoCTF - Safe Opener.

Hidden Cipher 2 | Reverse Engineering | PicoCTF 2026

Hidden Cipher 2 | Reverse Engineering | PicoCTF 2026

Read more details and related context about Hidden Cipher 2 | Reverse Engineering | PicoCTF 2026.

Java Code & Base64 Encoding (PicoCTF 2022 #21 'safe-opener')

Java Code & Base64 Encoding (PicoCTF 2022 #21 'safe-opener')

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