CTF challenges & writeups

360 challenges · browse all techniques

Challenge	CTF	Weight	Category	Has
encrypted_note	DownUnderCTF 2021	–	Pwn	files
flag_loader	DownUnderCTF 2021	–	Reverse	files
flag_printer	DownUnderCTF 2021	–	Reverse	files
power_sign	DownUnderCTF 2021	–	Crypto	files src
1337crypt	DownUnderCTF 2020	24.44	Crypto	files src
BabyRSA	DownUnderCTF 2020	24.44	Crypto	files src
CEEBC	DownUnderCTF 2020	24.44	Crypto	files src
Extra Cool Block Chaining	DownUnderCTF 2020	24.44	Crypto	files src
Formatting	DownUnderCTF 2020	24.44	Reverse	files src
Hex Cipher Shift	DownUnderCTF 2020	24.44	Crypto	files src
LSB\|\|MSB Calculation Game	DownUnderCTF 2020	24.44	Crypto	files src
ROT-I	DownUnderCTF 2020	24.44	Crypto	files src
impECCable	DownUnderCTF 2020	24.44	Crypto	files src
pwn-or-web	DownUnderCTF 2020	24.44	Misc	files
Beat_Around_The_Bush	BushBash 2026	–	Crypto	files
Bliss_I	BushBash 2026	–	Misc	files
Hack_The_Vault_I	BushBash 2026	–	Reverse	files
Signal_Haze	BushBash 2026	–	Misc	files
Spiritual_Interception	BushBash 2026	–	Misc	files
The_CSSA_Hackerman_I	BushBash 2026	–	OSINT	files
The_Eye	BushBash 2026	–	OSINT	files
Turned_Around	BushBash 2026	–	Reverse	files
cachebrowns	BushBash 2026	–	Pwn	files
chip	BushBash 2026	–	Misc	files
langle_rangle_langle_rangle	BushBash 2026	–	Reverse	files
langle_rangle_langle_rangle_langle_rangle_langle_rangle_langle_rangle_langle_rangle	BushBash 2026	–	Reverse	files
matrix_secrets	BushBash 2026	–	Misc	files
membership_perks	BushBash 2026	–	Crypto	files
say_the_word_on_beta	BushBash 2026	–	Misc	files
strawberries	BushBash 2026	–	Crypto	files
xored	BushBash 2026	–	Crypto	files
DriveOne	K17 2026	24.83	Web	files
Evilgram	K17 2026	24.83	Reverse	files
P_NP	K17 2026	24.83	Misc	files
archive_trap	K17 2026	24.83	Misc	files
big_win	K17 2026	24.83	Pwn	files
blowfish	K17 2026	24.83	Crypto	files
close_enough	K17 2026	24.83	Forensics	files
cry_pto	K17 2026	24.83	Crypto	files
cryjail	K17 2026	24.83	Crypto	files

Challenges