I promise that you only need some basic algebra for this, as well as a simple understanding of exponential functions. If you are familiar with modular arithmetic, that’s wonderful. If not,no biggie.

Foundational research in the arithmetic aspects of supersingular isogeny-based schemes continues to provide valuable insights into optimising modular arithmetic and group operations, reinforcing ...

This is due to the usage of modular arithmetic, exponential functions, and very large prime numbers. Your bitcoin private keys are probably words, but they can also be a very large number.