import type { KeyPair } from "../crypto/keypair.js";
export declare const NET_PACKET_CRYPTO = 32;
export declare const CRYPTO_PACKET_FRIEND_REQ = 32;
export declare const CRYPTO_PACKET_DHTPK = 156;
export declare const CRYPTO_PACKET_NAT_PING = 254;
export type ToxDhtCryptoRequest = {
    receiverPublicKey: Uint8Array;
    senderPublicKey: Uint8Array;
    requestId: number;
    data: Uint8Array;
};
export declare function createToxDhtCryptoRequest(opts: {
    sender: KeyPair;
    receiverPublicKey: Uint8Array;
    requestId: number;
    data: Uint8Array;
}): Uint8Array;
export declare function openToxDhtCryptoRequest(packet: Uint8Array, self: KeyPair): ToxDhtCryptoRequest | undefined;