CTF challenges & writeups

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

Challenge	CTF	Weight	Category	Has
patches #binary-patching #nop	JerseyCTF 2022	25.00	Reverse	files wu 1
secret-message #url-encoding #steganography	JerseyCTF 2022	25.00	Crypto	files wu 1
win-bin-analysis #dll-reversing #aes	JerseyCTF 2022	25.00	Reverse	files wu 1
would-you-wordle #rc4	JerseyCTF 2022	25.00	Crypto	files wu 1
hariboteSecureNote #csp-nonce-bypass	LINE 2022	–	Web	files wu 1
ss_puzzle #xor-secret-sharing	LINE 2022	–	Crypto	files wu 2
SecureWebsite #timing-attack	LexingtonInformaticsTournament 2022	23.87	Web	files wu 1
YouKnowTheRulesAndSoDoI #custom-encoding #bruteforce	LexingtonInformaticsTournament 2022	23.87	Reverse	files wu 1
brsaby #rsa #factorization	MapleCTF 2022	24.05	Crypto	files wu 1
PellesRotor-SupportedArithmetic #rsa #gcd #modulus-recovery	MidnightSun 2022 Quals	27.82	Crypto	files wu 1
GoJargonGo #word-frequency #encoding	NahamCon 2022 EU	24.61	Reverse	files wu 1
Secure_Notes #otp-bruteforce	NahamCon 2022	24.61	Mobile	files wu 2
Shapeshifter #lfsr	NahamCon 2022 EU	24.61	Crypto	files wu 1
Unimod #shift-cipher-bruteforce	NahamCon 2022	24.61	Crypto	files wu 3
XORROX #xor-keystream-reversal	NahamCon 2022	24.61	Crypto	files wu 3
MeetMeInMiddle #meet-in-the-middle (mitm)	OFPPT 2022	–	Crypto	files wu 2
RSAMod #rsa-common-modulus	OFPPT 2022	–	Crypto	files wu 2
RSASmall #rsa-low-exponent	OFPPT 2022	–	Crypto	files wu 2
XOR #known-plaintext-xor	OFPPT 2022	–	Crypto	files wu 2
Barry #bigram-substitution #cryptogram	PatriotCTF 2022	24.52	Crypto	files src wu 1
Base64Times10 #base64 #rot13	PatriotCTF 2022	24.52	Crypto	files src wu 1
ComicallyBadCrypto #padding-oracle #aes-cbc #bit-flipping	PatriotCTF 2022	24.52	Crypto	files wu 1
CorruptAAAAd #rsa #corrupted-private-key #public-exponent-bruteforce	PatriotCTF 2022	24.52	Crypto	files wu 2
Cowsay #repeating-key-xor #xortool	PatriotCTF 2022	24.52	Crypto	files src wu 1
Cryptogod #cbc-mac-forgery	PatriotCTF 2022	24.52	Crypto	files src wu 1
ExtremelyCoolBook #aes-ecb #ecb-oracle #padding	PatriotCTF 2022	24.52	Crypto	files src wu 1
Flowing #bruteforce	PatriotCTF 2022	24.52	Reverse	files src wu 1
Fly #swipe-typing #keyboard-trace	PatriotCTF 2022	24.52	Crypto	files wu 1
It's All Greek to Me #book-cipher	PatriotCTF 2022	24.52	Misc	files src wu 1
MagicSmoke #zipcrypto #known-plaintext #sqlite	PatriotCTF 2022	24.52	Crypto	files wu 1
Merkle-Derkle #hash-length-extension #sha1	PatriotCTF 2022	24.52	Crypto	files wu 1
OverComplicated #xor #logic-gates	PatriotCTF 2022	24.52	Reverse	files wu 1
PeeWhySea #pyc-decompilation #xor	PatriotCTF 2022	24.52	Reverse	files wu 1
TwoFifty #rsa #known-factorization	PatriotCTF 2022	24.52	Crypto	files src wu 1
crackme #base64 #caesar-cipher	PatriotCTF 2022	24.52	Reverse	files src wu 1
choreography #slide-attack #feistel	PlaidCTF 2022	93.67	Crypto	files wu 1
pressure #ed25519 #crt	PlaidCTF 2022	93.67	Crypto	files wu 1
IS_THIS_LCG #multi-prime-rsa #truncated-lcg #ec-lcg #lll (lll-lattice-reduction)	RCTF 2022	–	Crypto	files wu 1
S2DH #sidh #castryck-decru #torsion-point	RCTF 2022	–	Crypto	files wu 1
RSAGoneWrong #rsa #phi-factorization #prime-combination	RITSEC 2022	–	Crypto	files wu 1

Challenges