import { KeyPairBase } from './key_pair_base.js';
import type { ISignatureCrypto, PublicKey, KeyPairString } from '@meer-js/types';
/**
 * This class provides key pair functionality for Ed25519 curve:
 * generating key pairs, encoding key pairs, signing and verifying.
 */
export declare class KeyPairEd25519 extends KeyPairBase {
    readonly secretKey: string;
    readonly extendedSecretKey: string;
    readonly publicKey: PublicKey;
    constructor(extendedSecretKey: string);
    static fromRandom(): KeyPairEd25519;
    sign(message: Uint8Array): ISignatureCrypto;
    verify(message: Uint8Array, signature: Uint8Array): boolean;
    toString(): KeyPairString;
    getPublicKey(): PublicKey;
}
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