Thoughts on Security

May include CTF challenge writeups and other miscellaneous topics

A neat trick to recover elements in rings with zero divisors

Number Theory

6 min read · September 21, 2022

2022 · cryptography math · CTFs
Farm - CryptoCTF

Finite Fields

4 min read · July 22, 2022

2022 · cryptography math · CTFs
Happy - Tokyo Westerns Qualifiers

Coppersmith's attack

5 min read · September 6, 2019

2019 · cryptography math · CTFs
ECC 2 (200) - PicoCTF 2017

Pohlig-Hellman

7 min read · April 17, 2017

2017 · cryptography math · CTFs