CTF challenges & writeups

515 challenges · browse all techniques

Challenge	CTF	Weight	Category	Has
Honey #hidden-number-problem #lattice-reduction #lll (lll-lattice-reduction)	Crypto 2024	65.62	Misc	files wu 1
Melek #shamir-secret-sharing #lagrange-interpolation #non-coprime-exponent #modular-square-root	Crypto 2024	65.62	Misc	files wu 1
Advanced_JSON_Cutifier #jsonnet-file-read	Mapna 2024	24.59	Web	files wu 1
Compile_Me #compile-and-run	Mapna 2024	24.59	Reverse	files wu 1
JigBoy #file-header-repair	Mapna 2024	24.59	Forensics	files wu 2
Novel_reader #double-url-encode-path-traversal	Mapna 2024	24.59	Web	files wu 1
PLC_I #pcap-analysis	Mapna 2024	24.59	Forensics	files wu 1
PLC_II #s7comm-analysis	Mapna 2024	24.59	Forensics	files wu 1
Purify #wasm-buffer-overflow	Mapna 2024	24.59	Web	files wu 1
Tampered #line-ending-anomaly	Mapna 2024	24.59	Forensics	files wu 2
What_next #mt19937-prediction	Mapna 2024	24.59	Crypto	files wu 2
XXG #xcf-file-recovery	Mapna 2024	24.59	Forensics	files wu 1
gimme_csp #csp-bypass #content-type-confusion #xss	ASIS 2023 Finals	89.80	Web	files wu 1
Barak #hessian-curve #ecdlp #pohlig-hellman	Crypto 2023	59.60	Misc	files wu 1
Blue_Office #lcg-keystream #seed-bruteforce #known-plaintext	Crypto 2023	59.60	Misc	files wu 1
Did_it #oracle-set-membership-leak #quadratic-residue-mapping	Crypto 2023	59.60	Misc	files wu 1
Insights #rsa #predictable-private-exponent	Crypto 2023	59.60	Misc	files wu 1
Roldy #order-preserving-encryption #binary-search-oracle	Crypto 2023	59.60	Misc	files wu 1
Trex #diophantine-equations #quadratic-double-root-construction	Crypto 2023	59.60	Misc	files wu 1
raas-v1 #curl-argument-injection #local-file-read #ssrf	ASIS 2022 Finals	87.00	Web	files wu 1
starter_ecc #ecc-over-composite-modulus #modular-square-root #hensel-lifting #crt	Crypto 2022	48.20	Misc	files wu 1
DamaS #rsa #boneh-durfee #small-private-exponent #coppersmith	ASIS 2021 Quals	89.22	Crypto	files wu 1
MDLP #matrix-discrete-logarithm #linear-algebra-cryptanalysis	ASIS 2021 Finals	89.22	Crypto	files wu 2
justpwnit #out-of-bounds-array-index #stack-overflow #rop	ASIS 2021 Quals	89.22	Pwn	files wu 2
lovely_nonces #xss #csp-nonce-bypass	ASIS 2021 Quals	89.22	Web	files wu 2
nDLP #discrete-logarithm #composite-modulus #pohlig-hellman #crt	ASIS 2021 Finals	89.22	Crypto	files wu 2
strvec #integer-overflow #out-of-bounds-write #tcache-poisoning	ASIS 2021 Quals	89.22	Pwn	files wu 3
DoRSA #rsa #wiener-attack #continued-fractions	Crypto 2021	36.00	Misc	files wu 1
Onlude #lu-decomposition #matrix-algebra-gf-p	Crypto 2021	36.00	Misc	files wu 1
RSAphantine #rsa #diophantine-equations #sum-of-cubes-factoring	Crypto 2021	36.00	Misc	files wu 1
Rima #custom-encoding-reversal #base5	Crypto 2021	36.00	Misc	files wu 2
Rohald #twisted-edwards-curve #curve-parameter-recovery #edwards-to-weierstrass #ecdlp	Crypto 2021	36.00	Misc	files wu 1
Symbols #latex-symbols #image-ocr	Crypto 2021	36.00	Misc	files wu 1
TRUNC #ecdsa-signature-forgery #signature-malleability	Crypto 2021	36.00	Misc	files wu 1
Triplet #rsa #shared-exponent-multiple-moduli #phi-multiple	Crypto 2021	36.00	Misc	files wu 2
Wolf #aes-gcm #short-nonce-bruteforce	Crypto 2021	36.00	Misc	files wu 2
double_miff #custom-curve #modulus-recovery-gcd #point-addition-algebra	Crypto 2021	36.00	Misc	files wu 1
ecchimera #ecc-over-zmod-n #smart-attack #pohlig-hellman #crt	Crypto 2021	36.00	Misc	files wu 1
elegant_curve #anomalous-curve #smart-attack #smooth-order #pohlig-hellman	Crypto 2021	36.00	Misc	files wu 1
farm #gf-2^6 #small-keyspace-bruteforce	Crypto 2021	36.00	Misc	files wu 2

Challenges