import { Cypher } from '../Cypher';
import { IKeyPairBytes } from '../../types';
/**
 * Encrypts a message using ECIES
 * @see https://cryptobook.nakov.com/asymmetric-key-ciphers/ecies-public-key-encryption
 */
export declare class ECDSA extends Cypher {
    private readonly ec;
    readonly sign: IKeyPairBytes;
    constructor(curve: 'secp256r1' | 'secp256k1', sign: IKeyPairBytes);
    createSignature(input: Uint8Array): Uint8Array;
    verifySignature(input: Uint8Array, signature: Uint8Array): boolean;
    encryptMessage(input: Uint8Array): Uint8Array;
    decryptMessage(encryptedMessage: Uint8Array): Uint8Array;
}