CTF challenges & writeups

1454 challenges in family ⊕ crypto ✕ clear · browse all techniques

Challenge	CTF	Weight	Category	Has
baby-rsa #rsa #higher-power-residue #nth-root #crt	DiceCTF 2022	24.82	Crypto	files wu 1
blazingfast #web #xss #unicode-normalization	DiceCTF 2022	24.82	Web	files wu 2
commitment-issues #lll (lll-lattice-reduction)#lattice #commitment-scheme	DiceCTF 2022	24.82	Crypto	files wu 1
correlated #lfsr #correlation-attack #filtered-lfsr	DiceCTF 2022	24.82	Crypto	files wu 1
knock-knock #web #hmac-forgery #predictable-secret #nodejs	DiceCTF 2022	24.82	Web	files wu 3
learning-without-errors #rlwe #ckks #lattice #key-recovery	DiceCTF 2022	24.82	Crypto	files wu 1
pow-pow #vdf #rsa-group #repeated-squaring	DiceCTF 2022	24.82	Crypto	files wu 2
psych #timing-attack #fujisaki-okamoto #kem	DiceCTF 2022	24.82	Crypto	files wu 1
rejected #lfsr #rejection-sampling #known-plaintext #gf2-linear-system	DiceCTF 2022	24.82	Crypto	files wu 1
typed #rust-type-system #z3 #reversing	DiceCTF 2022	24.82	Reverse	files wu 1
CryptoCasino #weak-prng	DownUnderCTF 2022	–	Blockchain	files wu 2
baby-arx #byte-at-a-time	DownUnderCTF 2022	–	Crypto	files src wu 3
Cycling #rsa #cycling-attack	GoogleCTF 2022	–	Crypto	files wu 1
FixedASLR #aslr-prediction #lfsr #canary-leak	GoogleCTF 2022	–	Pwn	files wu 1
AngryRobot #firmware-reversing #constraint-solving	GreyCatTheFlag 2022	24.50	Reverse	files wu 1
RuntimeEnvironment1 #go-reversing #custom-base64	GreyCatTheFlag 2022	24.50	Reverse	files wu 1
babysss #shamir-secret-sharing #crt	HITCON 2022	–	Crypto	files wu 1
chimera #ecm #discrete-log #hidden-subset-problem	HITCON 2022	–	Crypto	files wu 1
easy_ntru #ntru #lattice	HITCON 2022	–	Crypto	files wu 1
meow_way #heavens-gate #z3 #windows-reversing	HITCON 2022	–	Reverse	files wu 1
secret #lattice #lll (lll-lattice-reduction)#rsa	HITCON 2022	–	Crypto	files wu 1
superprime #factorization #binary-search #rsa	HITCON 2022	–	Crypto	files wu 1
baby-baby-rsa #bruteforce	HSCTF 2022	–	Crypto	files wu 2
lcvc #lcg	HSCTF 2022	–	Crypto	files wu 1
otp #mersenne-twister	HSCTF 2022	–	Crypto	files wu 1
Poly321 #polynomial-inversion	HeroCTF 2022	51.22	Crypto	files wu 1
The_oracles_apprentice #rsa-malleability	HeroCTF 2022	51.22	Crypto	files wu 1
LivingWithoutExpectations #lwe-cvp	ImaginaryCTF 2022	24.65	Crypto	files wu 1
Lorge #rsa #pollard-p-1 #smooth	ImaginaryCTF 2022	24.65	Crypto	files wu 1
Poker #mt19937-prediction	ImaginaryCTF 2022	24.65	Crypto	files wu 1
SecureEncodingBase64 #simulated-annealing	ImaginaryCTF 2022	24.65	Crypto	files wu 1
SecureEncodingHex #substitution #known-plaintext	ImaginaryCTF 2022	24.65	Crypto	files wu 1
desrever #rot13	ImaginaryCTF 2022	24.65	Reverse	files wu 1
hash #custom-hash #z3 #linear-equations	ImaginaryCTF 2022	24.65	Crypto	files wu 1
polymorphic #polymorphic-code #xor #gdb	ImaginaryCTF 2022	24.65	Reverse	files wu 1
smoll #shared-prime-factor	ImaginaryCTF 2022	24.65	Crypto	files wu 1
stream #stream-cipher #z3	ImaginaryCTF 2022	24.65	Crypto	files wu 1
hidden-in-plain-sight #custom-cipher #reverse-decryptor	JerseyCTF 2022	25.00	Crypto	files wu 1
inDEStructible #des #key-bruteforce	JerseyCTF 2022	25.00	Crypto	files wu 1
misdirection #file-descriptors #xor	JerseyCTF 2022	25.00	Reverse	files wu 1

Challenges