/**
 * Copyright 2023 Fluence Labs Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import type { PeerId } from "@libp2p/interface";
import { KeyPairOptions } from "../clientPeer/types.js";
export declare class KeyPair {
    private privateKey;
    private libp2pPeerId;
    private publicKey;
    private constructor();
    /**
     * Key pair in libp2p format. Used for backward compatibility with the current FluencePeer implementation
     */
    getLibp2pPeerId(): PeerId;
    /**
     * Return public key inferred from private key
     */
    getPublicKey(): Uint8Array;
    /**
     * Generates new KeyPair from ed25519 private key represented as a 32 byte array
     * @param seed - Any sequence of 32 bytes
     * @returns - Promise with the created KeyPair
     */
    static fromEd25519SK(seed: Uint8Array): Promise<KeyPair>;
    /**
     * Generates new KeyPair with a random secret key
     * @returns - Promise with the created KeyPair
     */
    static randomEd25519(): Promise<KeyPair>;
    static verifyWithPublicKey(publicKey: Uint8Array, message: Uint8Array, signature: Uint8Array): boolean | Promise<boolean>;
    getPeerId(): string;
    /**
     * @returns 32 byte private key
     */
    toEd25519PrivateKey(): Uint8Array;
    signBytes(data: Uint8Array): Promise<Uint8Array>;
    verify(data: Uint8Array, signature: Uint8Array): Promise<boolean>;
}
export declare const fromBase64Sk: (sk: string) => Promise<KeyPair>;
export declare const fromBase58Sk: (sk: string) => Promise<KeyPair>;
export declare const fromOpts: (opts: KeyPairOptions) => Promise<KeyPair>;