@beraji/wallet-sdk/dist/sss/utils.js

Beraji: Distributed Secret Sharing.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.calcPolynomial = exports.equal = void 0;
const utils_1 = require("@noble/hashes/utils");
const equal = (arr) => {
    if (!arr)
        return true;
    const [a, ...rest] = arr;
    const index = rest.findIndex((b) => (0, utils_1.bytesToHex)(a) !== (0, utils_1.bytesToHex)(b));
    return index < 0;
};
exports.equal = equal;
const calcPolynomial = (x, coefficients, ff) => {
    const _x = ff.encode(x);
    const _coefficients = coefficients.map((co) => ff.encode(co));
    let _cache = ff.ONE;
    let _sum = ff.ZERO;
    _coefficients.forEach((_co, i) => {
        if (i > 0)
            _cache = _cache.redMul(_x);
        _sum = _sum.redAdd(_cache.redMul(_co));
    });
    return ff.decode(_sum);
};
exports.calcPolynomial = calcPolynomial;
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