Lost Frequencies

Final Points: 100

Description

Zeroes, ones, dots, and dashes Data streams in bright flashes

111 0000 10 111 1000 00 10 01 010 1011 11 111 010 000 0

Note: Wrap the capitalized flag in KashiCTF{}.

Writeup

The key clues in the challenge were:

• Zeroes and ones: Suggesting binary encoding.
• Dots and dashes: Indicating Morse code.

Step 1: Convert Binary to Morse Code

Interpreting the given binary sequence with 1 as a dash (-), 0 as a dot (.), and spaces separating characters:

--- .... -. --- -... .. -. .- .-. -.-- -- --- .-. ... .

Step 2: Decode Morse Code

Using dcode.fr Morse Decoder

OHNOBINARYMORSE

Flag

KashiCTF{OHNOBINARYMORSE}