import { BoxKeyPair, SignKeyPair } from 'tweetnacl';
export declare class PaperKey {
    readonly label?: string | undefined;
    private readonly data;
    constructor(data: Uint8Array, label?: string | undefined);
    static from(paper_key: string): Promise<PaperKey>;
    get eddsa_seed(): Uint8Array;
    get dh_seed(): Uint8Array;
    get signing_keypair(): SignKeyPair;
    get encryption_keypair(): BoxKeyPair;
}