Crack 2021 - Easy Canvas

If the ZIP wasn't appended, the challenge might instead hide the flag in LSB of the image pixels. Use zsteg (for PNG/BMP):

zsteg canvas_crack_2021.png

If done correctly, you’d see:

[?] 1 bit planes hidden
b1,rgb,lsb,xy       .. text: "CTFcanvas_crack_2021"

First, check the file type and integrity: easy canvas crack 2021

file canvas_crack_2021.png

Output:

canvas_crack_2021.png: PNG image data, 800 x 600, 8-bit/color RGB, non-interlaced

Open the image — it looks like a plain white canvas with some random black dots and a subtle grid pattern. If the ZIP wasn't appended, the challenge might

Category: Forensics / Steganography
Difficulty: Easy
Points: 50 If done correctly, you’d see: [