$ ctf42

#symbol-cipher CTF challenges

2 CTF challenges using symbol-cipher from 2 CTFs (2023–2026), 2 with writeups.

Crypto · 2

Often combined with

#keyboard-shift-cipher 1 #pigpen-cipher 1 #semaphore 1

Challenges

Filter and sort these in the challenge browser →

Challenge CTF Weight Category Has
Ten_Symbols
#symbol-cipher#pigpen-cipher#semaphore
 KBxAc 2026 – Crypto files wu 1
SEMA4
#keyboard-shift-cipher#symbol-cipher
 GREP 2023 – Crypto files wu 1