import { utf8ToBytes } from "@noble/hashes/utils.js";
declare function encrypt_v2(plaintext: string, conversationKey: Uint8Array, nonce?: Uint8Array<ArrayBufferLike> & Uint8Array<ArrayBuffer>): string;
declare function decrypt_v2(ciphertext: Uint8Array, nonce: Uint8Array, mac: Uint8Array, conversationKey: Uint8Array): string;
declare function decrypt_v1(ciphertext: Uint8Array, nonce: Uint8Array, conversationKey: Uint8Array): string;
export declare const nip44: {
    utils: {
        minPlaintextSize: number;
        maxPlaintextSize: number;
        utf8Encode: typeof utf8ToBytes;
        utf8Decode(bytes: Uint8Array): any;
        getConversationKey(privkeyA: string, pubkeyB: string): Uint8Array;
        getMessageKeys(conversationKey: Uint8Array, nonce: Uint8Array): {
            chacha_key: Uint8Array<ArrayBufferLike>;
            chacha_nonce: Uint8Array<ArrayBufferLike>;
            hmac_key: Uint8Array<ArrayBufferLike>;
        };
        calcPaddedLen(len: number): number;
        writeU16BE(num: number): Uint8Array<ArrayBuffer>;
        pad(plaintext: string): Uint8Array;
        unpad(padded: Uint8Array): string;
        hmacAad(key: Uint8Array, message: Uint8Array, aad: Uint8Array): Uint8Array<ArrayBufferLike> & Uint8Array<ArrayBuffer>;
        decodePayload(payload: string): {
            version: number;
            nonce: Uint8Array<ArrayBufferLike>;
            ciphertext: Uint8Array<ArrayBufferLike>;
            mac: Uint8Array<ArrayBufferLike> | undefined;
        };
    };
    v1: {
        getConversationKey: (privKey: string, pubKey: string) => Uint8Array<ArrayBufferLike> & Uint8Array<ArrayBuffer>;
        decrypt: typeof decrypt_v1;
    };
    v2: {
        getConversationKey: (privkeyA: string, pubkeyB: string) => Uint8Array;
        encrypt: typeof encrypt_v2;
        decrypt: typeof decrypt_v2;
    };
};
export {};
//# sourceMappingURL=nip44.d.ts.map