package ff

OCaml FF

Play with Finite Field in OCaml

This library provides functors to instantiate finite field of arbitrary orders (in the limit of Zarith, the dependency to handle arbitrary integers).

module F13 = Ff.MakeFp (struct let prime_order = Z.of_string "13" end)
module BLSFr = Ff.MakeFp (
  struct
    let prime_order = Z.of_string "52435875175126190479447740508185965837690552500527637822603658699938581184513"
  end
)

JavaScript compatibility

This library can be transpiled in JavaScript using js_of_ocaml. An example is provided in js/test_js.ml, with the corresponding dune file. It instantiates Fp with p = 53. dune will compile this into a FiniteField.js file, exporting methods like add, toString, random, etc. FiniteField can be used as a Node module. See js/test/test_js.js for an example.

# Generate FiniteField.js
dune build js
cp _build/default/js/FiniteField.js ./
node

var FF = require("./FiniteField.js");
let x = FF.random();
let y = FF.random();
let x_plus_y = FF.add(x, y);