/**
 * @license
 * @preserve
 *
 * KeeeX SAS Public code
 * https://keeex.me
 * Copyright 2013-2023 KeeeX All Rights Reserved.
 * 
 * These computer program listings and specifications, herein,
 * are and remain the property of KeeeX SAS. The intellectual
 * and technical concepts herein are proprietary to KeeeX SAS
 * and may be covered by EU and foreign patents,
 * patents in process, trade secrets and copyright law.
 * 
 * These listings are published as a way to provide third party
 * with the ability to process KeeeX data.
 * As such, support for public inquiries is limited.
 * They are provided "as-is", without warrany of any kind.
 * 
 * They shall not be reproduced or copied or used in whole or
 * in part as the basis for manufacture or sale of items unless
 * prior written permission is obtained from KeeeX SAS.
 * 
 * For a license agreement, please contact:
 * <mailto: contact@keeex.net>
 * 
 */
import nodeStream from "node:stream";
import { type EncryptOptions } from "./types.js";
/**
 * Create a decryption stream.
 *
 * Only support buffer, utf8 and raw encoding.
 *
 * @public
 */
export default class Decrypt extends nodeStream.Transform {
    #private;
    /**
     * Construct the encryption stream
     *
     * Additional options fields:
     * - encryptionKey: A CryptoKey instance to use for encryption
     *
     * Non usable options:
     * - objectMode: always false
     */
    constructor({ encryptionKey, objectMode, ...options }: EncryptOptions);
    /** Decrypt input after extracting decryption data */
    _transform: (chunk: Buffer | string, encoding: string, callback: nodeStream.TransformCallback) => void;
    _flush: (callback: nodeStream.TransformCallback) => void;
}