libnexa-ts/dist/types/crypto/point.d.ts

A pure and powerful Nexa SDK library.

import { default as BN } from '../crypto/bn.extension';
import { curve, BNInput } from 'elliptic';
export default class Point {
    private static readonly ec;
    ecPoint: curve.short.ShortPoint;
    private static _g;
    constructor(point: curve.short.ShortPoint, skipValidation?: boolean);
    /**
     * Will return the X coordinate of the Point
     *
     * @returns A BN instance of the X coordinate
     */
    getX(): BN;
    /**
     * Will return the Y coordinate of the Point
     *
     * @returns A BN instance of the Y coordinate
     */
    getY(): BN;
    add(p: Point): Point;
    mul(k: BN): Point;
    mulAdd(k1: BN, p2: Point, k2: BN): Point;
    eq(p: Point): boolean;
    /**
     * Will determine if the point is valid
     *
     * @see {@link https://www.iacr.org/archive/pkc2003/25670211/25670211.pdf}
     * @throws A validation error if exists
     * @returns An instance of the same Point
     */
    validate(): this;
    hasSquare(): boolean;
    private static isSquare;
    /**
     * Instantiate a valid secp256k1 Point from the X and Y coordinates.
     *
     * @param x - The X coordinate
     * @param y - The Y coordinate
     * @see {@link https://github.com/indutny/elliptic}
     * @throws A validation error if exists
     */
    static ecPoint(x: BNInput, y: BNInput, isRed?: boolean): Point;
    /**
     *
     * Instantiate a valid secp256k1 Point from only the X coordinate
     *
     * @param odd - If the Y coordinate is odd
     * @param x - The X coordinate
     * @throws A validation error if exists
     */
    static ecPointFromX(odd: boolean, x: BNInput): Point;
    /**
     *
     * Will return a secp256k1 ECDSA base point.
     *
     * @see {@link https://en.bitcoin.it/wiki/Secp256k1}
     * @returns An instance of the base point.
     */
    static getG(): Point;
    /**
     *
     * Will return the max of range of valid private keys as governed by the secp256k1 ECDSA standard.
     *
     * @see {@link https://en.bitcoin.it/wiki/Private_key#Range_of_valid_ECDSA_private_keys}
     * @returns A BN instance of the number of points on the curve
     */
    static getN(): BN;
    static pointToCompressed(point: Point): Uint8Array;
}
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