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Recent posts

LLL Demonstration

WORK IN PROGRESS This is a demo of the LLL algorithm. You can check the debug box to step through the algorithm to see exactly how LLL works.

Lattice Demonstration

This is an example of a 2D lattice. Drag the basis vectors v1 and v2 to see the effects. I have also implemented the Babai’s (naive) algorithm for solving th...

Zetta-CTF: 🥥

38 minute read ★★☆☆☆

The following challenge is from the Zetta-CTF PHP: Horrific Puzzle, during the VXCON in Hong Kong, 27 Apr - 28 Apr 2019. The challenge is named 🥥. btw no one...

Coppersmith’s Method (Part I): Introduction

49 minute read ★★★☆☆

The Coppersmith’s method is an application of lattice basis reduction algorithms (like LLL) to find small solutions to polynomials modulo (N). The applicatio...