CTF challenges & writeups

28 challenges in family ⊕ hardware ✕ clear · browse all techniques

Challenge	CTF	Weight	Category	Has
Beaconing_from_above #sdr #signal-analysis #morse	Starpwn 2026	–	Misc	files wu 1
Hidden_in_Flash #i2c #eeprom #hardware	UMassCTF 2025	48.38	Hardware	files wu 1
LockDown #hardware-reversing #verilog #z3	WolvCTF 2025	47.25	Reverse	files wu 1
Sir_Scope #oscilloscope	IrisCTF 2024	24.59	Misc	files wu 2
two_wrongs #quantum-circuit-reversal #brute-force	corCTF 2024	55.00	Crypto	files wu 1
Tornado_Warning #radio-signal-decoding #sdr	UIUCTF 2023	–	Misc	files wu 1
Blood_Of_Circuits #logic-gate-circuit	KnightCTF 2022	17.38	Hardware	files wu 1
Fix_It_Felix #avr-firmware-reversing	KnightCTF 2022	17.38	Hardware	files wu 1
Cereal #uart-logic-analyzer	NahamCon 2022	24.61	Hardware	files wu 2
Dweeno #xor-logic-circuit	NahamCon 2022	24.61	Hardware	files wu 3
Garys_Sauce #verilog-reversing	NahamCon 2022	24.61	Hardware	files wu 1
BoatLouder #pic18f-microcontroller-reversing #bootloader #firmware	Aero 2021	35.17	Hardware	files wu 1
Digitally_Encrypted_1 #logic-circuit-reversing #xor-cipher	BCACTF 2021	–	Reverse	files wu 2
Digitally_Encrypted_2 #logic-circuit-reversing #xnor-cipher	BCACTF 2021	–	Reverse	files wu 2
Digitally_Encrypted_2.99999 #logic-circuit-reversing #shift-xor-cipher-inversion	BCACTF 2021	–	Reverse	files wu 1
Digitally_Encrypted_3 #logic-circuit-reversing #shift-add-xor-cipher	BCACTF 2021	–	Reverse	files wu 1
A_Different_Type_of_Serial_Key #hardware #logic-analyzer #spi #i2c #xor-decode	CSAW 2021 Quals	20.54	Hardware	files wu 1
A_Pain_in_the_BACnet #pcap-analysis #bacnet #scapy #protocol-parsing	CSAW 2021 Quals	20.54	Hardware	files wu 3
The_Magic_Modbus #pcap-analysis #modbus #tcp-stream	CSAW 2021 Quals	20.54	Hardware	files wu 2
ncore #verilog-softcore-reversing #custom-isa #bytecode-crafting #enclave-dump	CSAW 2021 Quals	20.54	Reverse	files wu 3
Project_Power #correlation-power-analysis	ICHSA 2021	–	Hardware	files wu 1
Abnormal #verilog-reversing	ImaginaryCTF 2021	–	Reverse	files wu 1
Normal #verilog-reversing	ImaginaryCTF 2021	–	Reverse	files wu 3
digital_play #reversing #logic-circuit	Tamil 2021	14.13	Reverse	files wu 2
EZPZ_CRKMEE #avr-firmware-reversing #simavr-emulation #gdb-scripting	CTFZone 2018 Quals	23.92	Misc	files wu 1
Sniff_one #i2c-decoding #logic-analyzer	CrewCTF 2024	26.89	Misc	files wu 1
passino #arduino-seven-segment	BSidesTLV 2023	35.00	Hardware	files wu 1
Credits #spi-logic-analyzer	MetaRed 2021	–	Reverse	files wu 1

Challenges