$ ctf42

#lll (lll-lattice-reduction) CTF challenges

Also written as lll-lattice-reduction.

12 CTF challenges using lll (lll-lattice-reduction) from 10 CTFs (2021–2024), 12 with writeups. Mostly Crypto (92%).

Crypto · 11 Misc · 1

Often combined with

#lattice 4 #merkle-hellman 2 #knapsack 2 #lattice-reduction 2 #rsa 2 #hidden-number-problem 1 #trigonometric-reconstruction 1 #low-density-attack 1 #commitment-scheme 1 #implicit-factoring 1 #ec-lcg 1 #truncated-lcg 1 #multiprime-rsa 1 #msb-recovery 1 #blum-blum-shub 1

Challenges

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Challenge CTF Weight Category Has
Polyphenol idekCTF 2021 24.56 Crypto files wu 2
easy_pseudo_random zer0pts 2021 24.56 Crypto files wu 2
this_is_not_lsb SECCON 2022 Quals 97.90 Crypto files wu 1
Uncommon_Factors_II RCTF 2021 – Crypto files wu 1
IS_THIS_LCG RCTF 2022 – Crypto files wu 1
Adventurers_Knapsack DanteCTF 2023 24.44 Crypto files wu 1
karen zer0pts 2022 35.97 Crypto files wu 1
trendy_windy_trigonity CyberSpace 2024 24.83 Crypto files wu 1
commitment-issues DiceCTF 2022 24.82 Crypto files wu 1
Duality TeamItaly 2023 24.88 Crypto files wu 1
1_10 1337UP 2023 24.23 Crypto files wu 1
Honey Crypto 2024 65.62 Misc files wu 1