import { Ed25519CryptoClient } from '@airgap/coinlib-core/protocols/Ed25519CryptoClient';
export declare class AeternityCryptoClient extends Ed25519CryptoClient {
    constructor();
    signMessage(message: string, keypair: {
        privateKey: string;
    }): Promise<string>;
    verifyMessage(message: string, signature: string, publicKey: string): Promise<boolean>;
}