/// <reference types="node" />
/// <reference types="node" />
import { KeyPairKeyObjectResult } from 'crypto';
export declare namespace ED25519 {
    const DefaultEncodeFormat = "pem";
    const DefaultPriKeyEncodeType = "pkcs8";
    const DefaultPubKeyEncodeType = "spki";
    function NewKeyPair(): KeyPairKeyObjectResult;
    function Sign(data: any, certificate: string, passphrase?: string | Buffer): Buffer;
    function Verify(data: any, certificate: string, sig: Buffer): boolean;
}