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Challenges

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31 challenges in family ⊕ crypto:lattice ✕ clear · browse all techniques

Challenge CTF Weight Category Has
HEuristic
#ckks#microsoft-seal#approximate-common-divisor#lattice
 R3CTF 2026 35.95 Misc files wu 1
oneline6ryp7o
#lattice#modular-arithmetic#mersenne-modulus
 SekaiCTF 2026 79.25 Crypto files wu 1
Let_s_Break_Something_at_LoWE_s
#lwe
 JerseyCTF 2025 24.73 Crypto files wu 1
Magical_Oracle
#hidden-number-problem
 L3akCTF 2025 24.43 Crypto files wu 1
Honey
#hidden-number-problem#lattice-reduction#lll (lll-lattice-reduction)
 Crypto 2024 65.62 Misc files wu 1
Naptime
#lwe#lattice
 UIUCTF 2024 – Crypto files wu 1
1_10
#knapsack#merkle-hellman#lll (lll-lattice-reduction)
 1337UP 2023 24.23 Crypto files wu 1
Knapsack
#knapsack#meet-in-the-middle (mitm)
 BackdoorCTF 2023 – Crypto files wu 2
Knapsack_vs_Backpack
#subset-sum#greedy-knapsack#merkle-hellman#superincreasing-sequence
 Cryptoverse 2023 24.52 Crypto files wu 1
Spooky_Safebox
#lattice
 Hack.lu 2023 94.73 Crypto files wu 1
Learning_with_Exploitation
#lwe#lattice#knapsack
 TSG 2023 – Crypto files wu 3
small_weiner
#rsa#boneh-durfee#lattice#small-private-exponent
 DaVinciCTF 2022 24.50 Crypto files wu 2
commitment-issues
#lll (lll-lattice-reduction)#lattice#commitment-scheme
 DiceCTF 2022 24.82 Crypto files wu 1
learning-without-errors
#rlwe#ckks#lattice#key-recovery
 DiceCTF 2022 24.82 Crypto files wu 1
LivingWithoutExpectations
#lwe-cvp
 ImaginaryCTF 2022 24.65 Crypto files wu 1
IS_THIS_LCG
#multiprime-rsa#truncated-lcg#ec-lcg#lll (lll-lattice-reduction)
 RCTF 2022 – Crypto files wu 1
insufficient
#secret-sharing#cvp#lattice
 SECCON 2022 Quals 97.90 Crypto files wu 1
this_is_not_lsb
#rsa#lsb-oracle#lll (lll-lattice-reduction)
 SECCON 2022 Quals 97.90 Crypto files wu 1
the_swirl
#lattice
 hxp 2022 – Crypto files wu 1
karen
#lll (lll-lattice-reduction)#orthogonal-lattice#lattice
 zer0pts 2022 35.97 Crypto files wu 1
Uncommon_Factors_II
#rsa#implicit-factoring#lll (lll-lattice-reduction)
 RCTF 2021 – Crypto files wu 1
Sign_Wars
#ecdsa#biased-nonce#lattice#mt19937
 SECCON 2021 – Crypto files wu 1
flag_is_win
#ecdsa#ehnp#lattice
 TSG 2021 – Crypto files wu 2
Polyphenol
#lll (lll-lattice-reduction)
 idekCTF 2021 24.56 Crypto files wu 2
easy_pseudo_random
#blum-blum-shub#lll (lll-lattice-reduction)#lattice#msb-recovery
 zer0pts 2021 24.56 Crypto files wu 2
Vending_Machine
#ecdsa#biased-nonce#signature-malleability#python-hash-collision#lattice
 PwnMe 2025 Quals 24.95 Crypto files wu 1
trendy_windy_trigonity
#lll (lll-lattice-reduction)#lattice-reduction#trigonometric-reconstruction
 CyberSpace 2024 24.83 Crypto files wu 1
Adventurers_Knapsack
#merkle-hellman#knapsack#low-density-attack#lll (lll-lattice-reduction)
 DanteCTF 2023 24.44 Crypto files wu 1
Duality
#lattice#lll (lll-lattice-reduction)
 TeamItaly 2023 24.88 Crypto files wu 1
knapsack
#superincreasing-knapsack#greedy#merkle-hellman
 PBjar 2021 23.18 Crypto files wu 1
snore
#schnorr#nonce-reuse#lattice
 RaRCTF 2021 24.53 Crypto files wu 1