#lattice CTF challenges
17 CTF challenges using lattice from 13 CTFs (2021–2026), 17 with writeups. Mostly Crypto (94%).
Often combined with
#lll 4 #ecdsa 3 #ckks 2 #biased-nonce 2 #lwe 2 #boneh-durfee 1 #rsa 1 #small-private-exponent 1 #commitment-scheme 1 #key-recovery 1 #rlwe 1 #microsoft-seal 1 #approximate-common-divisor 1 #schnorr 1 #nonce-reuse 1
Challenges
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| Challenge | CTF | Weight | Category | Has |
|---|---|---|---|---|
| Learning_with_Exploitation | TSG 2023 | – | Crypto | files wu 3 |
| small_weiner | DaVinciCTF 2022 | 24.50 | Crypto | files wu 2 |
| flag_is_win | TSG 2021 | – | Crypto | files wu 2 |
| easy_pseudo_random | zer0pts 2021 | 24.56 | Crypto | files wu 2 |
| insufficient | SECCON 2022 Quals | 97.90 | Crypto | files wu 1 |
| snore | RaRCTF 2021 | 24.53 | Crypto | files wu 1 |
| learning-without-errors | DiceCTF 2022 | 24.82 | Crypto | files wu 1 |
| Naptime | UIUCTF 2024 | – | Crypto | files wu 1 |
| karen | zer0pts 2022 | 35.97 | Crypto | files wu 1 |
| commitment-issues | DiceCTF 2022 | 24.82 | Crypto | files wu 1 |
| oneline6ryp7o | SekaiCTF 2026 | 79.25 | Crypto | files wu 1 |
| Duality | TeamItaly 2023 | 24.88 | Crypto | files wu 1 |
| Spooky_Safebox | Hack.lu 2023 | 94.73 | Crypto | files wu 1 |
| the_swirl | hxp 2022 | – | Crypto | files wu 1 |
| Vending_Machine | PwnMe 2025 Quals | 24.95 | Crypto | files wu 1 |
| Sign_Wars | SECCON 2021 | – | Crypto | files wu 1 |
| HEuristic | R3CTF 2026 | 35.95 | Misc | files wu 1 |