Multivariate cryptography

Multivariate Cryptography is the generic term for cryptographic primitives based on multivariate polynomials over finite fields. In certain cases those polynomial could be defined over both a ground and an extension field. If the polynomials have the degree two we talk about multivariate quadratics. Cryptographic primitives based on multivariate polynomials are proven NP – complete. Thats why those scheme are the secure with post quantum computing coming.