$ ctf42

Challenges

Category
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Higher weight ≈ harder, more prestigious event.
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38 challenges · browse all techniques

Challenge CTF Weight Category Has
rps_casino
#lfsr#gf2-linear-system#z3#state-recovery
 DiceCTF 2024 Quals 54.40 Crypto files wu 2
winter
#winternitz#hash-based-signature#key-reuse#forgery
 DiceCTF 2024 Quals 54.40 Crypto files wu 3
yaonet
#ecdsa#partial-key-exposure#bsgs#discrete-log#nist-p256
 DiceCTF 2024 Quals 54.40 Crypto files wu 1
BBBB
#rsa#lcg#coppersmith
 DiceCTF 2023 36.70 Crypto files wu 1
seaside
#csidh#isogeny#oblivious-transfer
 DiceCTF 2023 36.70 Crypto files wu 1
baby-rsa
#rsa#higher-power-residue#nth-root#crt
 DiceCTF 2022 24.82 Crypto files wu 1
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
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
benaloh
#benaloh-cryptosystem#lcg-nonce#higher-residuosity
 DiceCTF 2021 24.82 Crypto files wu 1
garbled
#garbled-circuits#meet-in-the-middle (mitm)
 DiceCTF 2021 24.82 Crypto files wu 1
signature-sheep-scheming-signature-schemes
#lattice-signature#mask-recovery
 DiceCTF 2021 24.82 Crypto files wu 1
ProvablySecure DiceCTF 2023 36.70 Crypto files wu 2
ProvablySecure2 DiceCTF 2023 36.70 Crypto files wu 2
vinaigrette DiceCTF 2023 36.70 Crypto files wu 1
plagiarism DiceCTF 2021 24.82 Crypto files wu 1
carry_the_flame DiceCTF 2026 Quals 100.00 Crypto files
dot DiceCTF 2026 Quals 100.00 Crypto files
plane_or_exchange DiceCTF 2026 Quals 100.00 Crypto files
the_2000s_american_housing_crisis DiceCTF 2026 Quals 100.00 Crypto files
fairy_ring DiceCTF 2025 Quals 81.00 Crypto files
nil_circ DiceCTF 2025 Quals 81.00 Crypto files
satisfied DiceCTF 2025 Quals 81.00 Crypto files src
vorpal_sword DiceCTF 2025 Quals 81.00 Crypto files src
winxy_pistol DiceCTF 2025 Quals 81.00 Crypto files src
dicenet DiceCTF 2024 Quals 54.40 Crypto files
iinversion DiceCTF 2024 Quals 54.40 Crypto files
inversion DiceCTF 2024 Quals 54.40 Crypto files
mea_shor_ment_error DiceCTF 2024 Quals 54.40 Crypto files
pee_side DiceCTF 2024 Quals 54.40 Crypto files
inversion DiceCTF 2023 36.70 Crypto files
membrane DiceCTF 2023 36.70 Crypto files
rSabin DiceCTF 2023 36.70 Crypto files
shibari DiceCTF 2022 24.82 Crypto files
newcryptv2 DiceCTF 2021 24.82 Crypto files