/// <reference types="node" />
import { Point } from './point';
/**
 * Minimal secp256k1 elliptic curve implementation. Thanks to the following projects:
 *  - https://github.com/Azero123/simple-js-ec-math
 *  - https://github.com/indutny/elliptic
 */
export interface Curve {
    readonly g: Point;
    readonly a: bigint;
    readonly b: bigint;
    readonly n: bigint;
    readonly p: bigint;
}
/**
 * Get a point from an x and y coordinate.
 *
 * @param {Buffer | bigint} x
 * @param {Buffer | bigint} y
 * @return {Point}
 */
export declare const getPoint: (x: Buffer | bigint, y: Buffer | bigint) => Point;
/**
 * Get a point from an x coordinate.
 *
 * @param {Curve} curve
 * @param {Buffer | bigint} xBuffer
 * @param {boolean} isOdd
 * @return {Point}
 */
export declare const getPointFromX: (curve: Curve, xBuffer: Buffer | bigint, isOdd: boolean) => Point;
/**
 * Decode a point from a SEC1 encoded Buffer. Throws if the format is unknown.
 *
 * @param {Curve} curve
 * @param {Buffer} bytes
 * @return {Point}
 */
export declare const decodePoint: (curve: Curve, bytes: Buffer) => Point;