/**
 * Copyright 2020 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { Aead } from './aead';
/**
 * Implementation of AES-SIV.
 *
 */
export declare class AesSiv extends Aead {
    private readonly key;
    constructor(key: Uint8Array);
    /**
     */
    encrypt(plaintext: Uint8Array, associatedData?: Uint8Array): Promise<Uint8Array>;
    /**
     */
    decrypt(ciphertext: Uint8Array, associatedData?: Uint8Array): Promise<Uint8Array>;
}
export declare function fromRawKey(key: Uint8Array): Promise<Aead>;