Thoughts on Security

May include CTF challenge writeups and other miscellaneous topics

Vaulted (199) - JustCTF 2023

Cryptography in practice

9 min read · June 5, 2023

2023 · cryptography justCTF2023 · CTFs
Rustberry (201) - JustCTF 2023

Rust ARMv7+ reversing

19 min read · June 5, 2023

2023 · reversing justCTF2023 · CTFs
A neat trick to recover elements in rings with zero divisors

Number Theory

6 min read · September 21, 2022

2022 · cryptography math · CTFs
Farm (42) - CryptoCTF

Finite Fields

4 min read · July 22, 2022

2022 · cryptography math · CTFs
Happy (242) - Tokyo Westerns Qualifiers

Coppersmith's attack

5 min read · September 6, 2019

2019 · cryptography math · CTFs