On implementation of some perfect secret sharing schemes

In the paper a programming implementation of Shamir secret sharing scheme over the finite field of characteristic two, schemes based on equilibrium binary codes and Ito–Saito–Nishizeki schemes are investigated.
The first two schemes are threshold secret sharing schemes, the third is a scheme for a general access structure.
The paper is educational and methodological in nature and can help with the programming implementation of secret sharing schemes.