At the intersection of coding theory and cryptography lies the McEliece cryptosystem.

While the original instantiation with binary Goppa codes remains secure, numerous variants based on other code families have been broken.

This raises the question: are Goppa codes the only structured codes applicable to code-based cryptography?

Fortunately, the answer is no.

In this talk, we will explore the use of structured codes in code-based cryptography, focusing primarily on constructing secure cryptosystems with non-random codes.