/// <reference types="node" />
import { ICrypto } from './crypto';
import { IKeyPair } from './key-pair';
export declare class CryptoNode implements ICrypto {
    generateRsaKeyPair(bits: number): Promise<IKeyPair>;
    sign(privateKeyText: string, data: Buffer): Promise<Buffer>;
    importRsaKeyPair(serialized: string): Promise<IKeyPair>;
    private getPublicHash;
    private getPublicKey;
    private export;
}