miscProeasy

Lock and Key

bluehens_ctf_2026

Task: a short ciphertext string is provided with no files, and the title hints at typing rather than classical cryptography. Solution: recognize a wrong-keyboard-layout entry, map Dvorak characters back to QWERTY by physical key position, and recover the exact flag.

keyboard_layout dvorak qwerty substitution wrong_layout_typing

keyboard_layout_recoveryphysical_key_mappingdvorak_to_qwerty_conversion

$ ls tags/ techniques/

keyboard_layout dvorak qwerty substitution wrong_layout_typing

keyboard_layout_recoveryphysical_key_mappingdvorak_to_qwerty_conversion

Analysis

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$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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