export declare class Key {
    readonly pub: string;
    readonly sec: string;
    constructor(pub: string, sec: string);
    /*****************************
     *
     *      GENERAL CRYPTO
     *
     *****************************/
    get publicKey(): string;
    get secretKey(): string;
    json(): {
        pub: string;
        sec: string;
    };
    sign(msg: string): Promise<string>;
    signSync(msg: string): string;
}
export declare function randomKey(): Key;