shamirs-secret-sharing-ts/dist/points.js

A simple implementation of Shamir's Secret Sharing configured to use a finite field in GF(2^8) with 128 bit padding

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const horner_1 = require("./horner");
function points(a0, opts) {
    const prng = opts.random;
    const a = [a0]; // p(0) = a0 = secret
    const p = [];
    const t = opts.threshold;
    const n = opts.shares;
    for (let i = 1; i < t; ++i) {
        a[i] = parseInt(prng(1).toString('hex'), 16);
    }
    for (let i = 1; i < 1 + n; ++i) {
        p[i - 1] = {
            x: i,
            y: horner_1.horner(i, a)
        };
    }
    return p;
}
exports.points = points;