Nathan Huckleberry

Apr 28, 2024 | medium.com | Nathan Huckleberry

Geometric shapes like spheres, the torus, and Klein bottles are known in topology as closed manifolds. Some of these shapes have parameterizations that map the unit square into 3D Cartesian coordinates. If we consider the 3D Cartesian coordinates as RGB color coordinates instead of positions, we can obtain a map from the unit square to colors which represent the shape in some way. This can easily be achieved with ChatGPT and ShaderToy. Here are some cool visualizations of different shapes.

Apr 25, 2024 | medium.com | Nathan Huckleberry

In Rust, sending slices between threads can be challenging due to the language’s strict ownership rules. However, you can manage this safely by using scoped threads and tying the channel to the lifetime of the scope. This ensures that the threads, channels, and slices have lifetimes that do not exceed the lifetime of the underlying data they reference. The key insight is illustrated in the code below.

Nov 1, 2023 | eprint.iacr.org | Paul Crowley |Eric Biggers |Nathan Huckleberry

Paper 2021/1441 , Google (United States), Google (United States), Google (United States) On modern processors HCTR is one of the most efficient constructions for building a tweakable super-pseudorandom permutation. However, a bug in the specification and another in Chakraborty and Nandi's security proof invalidate the claimed security bound. We here present HCTR2, which fixes these issues and improves the security bound, performance and flexibility.