CTF challenges & writeups

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

Challenge	CTF	Weight	Category	Has
Duality #lattice #lll (lll-lattice-reduction)	TeamItaly 2023	24.88	Crypto	files wu 1
Pwn_Chall #isogeny #sqisign	TeamItaly 2023	24.88	Crypto	files wu 1
Safe_Image_Storage #reversing #protocol-analysis	TeamItaly 2023	24.88	Reverse	files wu 1
Scrambled_Pizzeria #known-plaintext #keystream-recovery	TeamItaly 2023	24.88	Crypto	files wu 1
Secure_comparator #side-channel #timing-attack	TeamItaly 2023	24.88	Reverse	files wu 1
Subarray_Sums_101 #subset-sum #z3	TeamItaly 2023	24.88	Misc	files wu 1
ZIP_Extractor_3000 #signature-bypass #zip	TeamItaly 2023	24.88	Misc	files wu 1
EZDORSA-Lv2 #rsa #low-public-exponent #nth-root	WaniCTF 2023	24.99	Crypto	files wu 1
EZDORSA-Lv3 #rsa #multi-prime #factorization	WaniCTF 2023	24.99	Crypto	files wu 1
dsa #dsa #deterministic-nonce	WaniCTF 2023	24.99	Crypto	files wu 1
fusion #rsa #bit-by-bit-factoring	WaniCTF 2023	24.99	Crypto	files wu 1
pqqp #rsa #factorization-from-hint	WaniCTF 2023	24.99	Crypto	files wu 1
Hack_the_Hash #sha1 #partial-hash-overwrite	nullconHackIM 2023 Goa	–	Pwn	files wu 1
easy_rsa #rsa #bitwise-leak #bit-by-bit-dfs-factoring	pingCTF 2023	–	Crypto	files wu 2
real_magic_dlog #discrete-log #bruteforce	0CTF 2022	100.00	Crypto	files wu 1
MediumExpectations #python-random-prediction	BSidesTLV 2022	23.94	Crypto	files wu 2
ShiftingMindset #keyboard-cipher #a1z26	BYUCTF 2022	–	Crypto	files src
Take Me Out to the Ball Game #base29 #encoding	BYUCTF 2022	–	Crypto	files src
Hambone #oracle #distance-leak	BuckeyeCTF 2022	24.81	Web	files wu 1
Sinep #xor #known-plaintext	BuckeyeCTF 2022	24.81	Reverse	files wu 1
TwinPrimeRSA #rsa #twin-primes	BuckeyeCTF 2022	24.81	Crypto	files wu 1
megaxord #single-byte-xor #bruteforce	BuckeyeCTF 2022	24.81	Crypto	files wu 1
CAFE #parser-differential #xss	Codegate 2022 Quals	–	Web	files wu 1
CryMePlx #aes-ctr #nonce-reuse #keystream-recovery	CyberSecurityRumble 2022	62.00	Crypto	files wu 1
threelittlekeys #android #apk-reversing #seeded-prng	CyberSecurityRumble 2022	62.00	Reverse	files wu 1
Giffy #gif-frame-extraction #steganography	Damncon 2022	17.54	Crypto	files wu 1
Based #encoding #base64 #classical-cipher	DigitalOverdose 2022	–	Crypto	files wu 1
oracle-for-block-cipher-enthusiasts #ofb #chosen-iv	DownUnderCTF 2022	–	Crypto	files src
rsa-interval-oracle-iii #rsa #decryption-oracle	DownUnderCTF 2022	–	Crypto	files src
HeckerBeluga #constraint-solving	Engineer 2022	22.65	Pwn	files wu 1
LockedOut #encoding-chain	Engineer 2022	22.65	Crypto	files wu 1
ShakespeareAndEncoding #rot47	Engineer 2022	22.65	Crypto	files wu 1
TVAsTrap #nested-base64	Engineer 2022	22.65	Crypto	files wu 1
franklin-last-words #rsa #franklin-reiter	GDGAlgiers 2022	23.54	Crypto	files wu 1
Dot #lattice #lll (lll-lattice-reduction)	GreyCatTheFlag 2022	24.50	Crypto	files src
RepeatingOffense #homomorphic	HackPack 2022	35.11	Crypto	files wu 1
Self-HostedCrypto #custom-cipher	HackPack 2022	35.11	Reverse	files wu 1
paiaiai #paillier #faulty-implementation	HackPack 2022	35.11	Crypto	files wu 1
ezrev #xor	Hayyim 2022	25.00	Reverse	files wu 1
Ep3.9 #vigenere	Jade 2022	23.95	Crypto	files wu 1

Challenges