import { Base64 } from "../Base64";
import { Base } from "./Base";
import { Hash } from "./Hash";
export declare class Ecdsa extends Base {
    private readonly hash;
    private publicKey;
    private privateKey;
    constructor(hash: Hash, publicKey: Uint8Array | Base64 | undefined, privateKey?: Uint8Array | Base64);
    protected signBinary(data: Uint8Array): Promise<Uint8Array>;
    protected verifyBinary(data: Uint8Array, signature: Uint8Array): Promise<boolean>;
}