@tidecloak/js/dist/esm/modules/tide-js/Math/KeySigning.js

TideCloak client side JS SDK

import { Point } from "../Cryptide/Ed25519.js";
import { mod } from "../Cryptide/Math.js";
/**
 * @param {Point[][]} GRij
 */
export function PreSign(GRij) {
    if (!GRij.every(Gri => Gri.length == GRij[0].length))
        throw new Error("Orks returned different amount of Grs");
    return GRij[0].map((_, i) => GRij.reduce((sum, next) => sum.add(next[i]), Point.ZERO));
}
/**
 *
 * @param {BigInt[][]} Sis
 */
export function Sign(Sis) {
    if (!Sis.every(Si => Si.length == Sis[0].length))
        throw new Error("Orks returned different amount of Si");
    return Sis[0].map((_, i) => mod(Sis.reduce((sum, next) => sum + next[i], BigInt(0))));
}
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