CTF challenges & writeups

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

Challenge	CTF	Weight	Category	Has
Shard #coppersmith #rsa #diffie-hellman	SEETF 2023	–	Crypto	files wu 1
Sleight_of_Hand #rc4 #anti-decompilation	SEETF 2023	–	Reverse	files wu 1
onelinecrypto #lll (lll-lattice-reduction)#branch-and-bound	SEETF 2023	–	Crypto	files wu 1
A_letter_from_the_Human_Resource_Management #human-resource-machine #xor	SekaiCTF 2023	24.86	Misc	files wu 1
Conquest_of_Camelot #z3 #neural-network-reversing	SekaiCTF 2023	24.86	Reverse	files wu 1
Cosmic_Ray #bit-flip #canary-bypass	SekaiCTF 2023	24.86	Pwn	files src wu 1
Diffecientwo #hash-collision #z3 #murmurhash3	SekaiCTF 2023	24.86	Crypto	files wu 1
Eval_Me #network-forensics #protocol-decoding	SekaiCTF 2023	24.86	Forensics	files wu 2
Noisier_CRC #crc #crt #polynomial	SekaiCTF 2023	24.86	Crypto	files wu 1
Noisy_CRC #crc #polynomial #crt	SekaiCTF 2023	24.86	Crypto	files wu 1
RandSubWare #differential-cryptanalysis #spn	SekaiCTF 2023	24.86	Crypto	files wu 1
cryptoGRAPHy_1 #graph-encryption #token-decryption	SekaiCTF 2023	24.86	Crypto	files wu 1
cryptoGRAPHy_2 #graph-encryption #leakage-abuse #shortest-path-tree	SekaiCTF 2023	24.86	Crypto	files wu 1
cryptoGRAPHy_3 #graph-encryption #query-recovery #leakage-abuse	SekaiCTF 2023	24.86	Crypto	files wu 1
RickSanchezAlgorithm #rsa #rsactftool	SpaceHeroes 2023	23.94	Crypto	files wu 1
Welcome-to-the-World-of-Tomorrow #vigenere #alien-alphabet	SpaceHeroes 2023	23.94	Crypto	files wu 1
RSA #rsa #symmetric-polynomial #vieta	Srdnlen 2023	24.17	Crypto	files wu 1
BeepBoop_Cryptography #binary-encoding #decoding	SunshineCTF 2023	34.09	Crypto	files wu 1
eyepatch #binary-patching #ghidra	TAMUctf 2023	–	Reverse	files wu 1
nope #binary-patching #bruteforce	TAMUctf 2023	–	Reverse	files wu 1
shmooving-2 #aes #missing-sbox #linear-cryptanalysis	TAMUctf 2023	–	Crypto	files wu 1
vigenot #vigenere #xor	TAMUctf 2023	–	Crypto	files wu 1
baby-rsa #rsa #small-e #cube-root	TJCTF 2023	–	Crypto	files wu 2
iheartrsa #rsa #hastad-broadcast	TJCTF 2023	–	Crypto	files wu 1
pay-to-win #bruteforce	TJCTF 2023	–	Web	files wu 1
squishy #rsa #signature-oracle	TJCTF 2023	–	Crypto	files wu 1
yolo #csp-bypass #predictable-nonce	TJCTF 2023	–	Web	files wu 1
Complicated_Function #rsa #partial-key-exposure #coppersmith	TSG 2023	–	Crypto	files wu 3
DANCE #aes-gcm #tag-forgery	TSG 2023	–	Web	files wu 3
Delta_Force #ecc #discrete-log #crt	TSG 2023	–	Crypto	files wu 2
Learning_with_Exploitation #lwe #lattice #knapsack	TSG 2023	–	Crypto	files wu 3
RANDOM_SEED_RANDOM #prng #cycle-length-attack	TSG 2023	–	Crypto	files wu 2
Secret_Sequence #low-entropy-key #bruteforce	TSG 2023	–	Misc	files wu 2
Streamer #stream-cipher #bruteforce	TSG 2023	–	Crypto	files wu 3
Unique_Flag #rsa #character-oracle #tree-search	TSG 2023	–	Crypto	files wu 3
casino #business-logic-flaw #negative-value	TetCTF 2023	53.89	Crypto	files wu 1
casino2 #prng-prediction #golang	TetCTF 2023	53.89	Crypto	files wu 1
Morphing_Time #elgamal #malleability	UIUCTF 2023	–	Crypto	files src wu 2
Three-Time_Pad #many-time-pad #key-reuse	UIUCTF 2023	–	Crypto	files src wu 2
geoguesser #reversing #prng #janet	UIUCTF 2023	–	Reverse	files wu 2

Challenges