import { Keypair } from "./types.js";
export declare function unpackKey(key: string): Uint8Array<ArrayBuffer>;
export declare function deriveId(secret: string): Promise<string>;
export declare function generateKeypair(): Promise<Keypair>;
export declare function sign(message: Uint8Array, secret: string): Promise<Uint8Array>;
export declare function verify(message: Uint8Array, signature: Uint8Array, id: string): Promise<boolean>;