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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.// Copyright 2014-2017 browserify-aes contributors. All rights reserved. MIT license.// Copyright 2013 Maxwell Krohn. All rights reserved. MIT license.// Copyright 2009-2013 Jeff Mott. All rights reserved. MIT license.
import { Buffer } from "../../../buffer.ts";
import * as aes from "./aes.js";import Transform from "../cipher_base.js";
export function StreamCipher(mode, key, iv, decrypt) {  Transform.call(this);
  this._cipher = new aes.AES(key);  this._prev = Buffer.from(iv);  this._cache = Buffer.allocUnsafe(0);  this._secCache = Buffer.allocUnsafe(0);  this._decrypt = decrypt;  this._mode = mode;}
// StreamCipher inherits TransformStreamCipher.prototype = Object.create(Transform.prototype, {  constructor: {    value: StreamCipher,    enumerable: false,    writable: true,    configurable: true,  },});
StreamCipher.prototype._update = function (chunk) {  return this._mode.encrypt(this, chunk, this._decrypt);};
StreamCipher.prototype._final = function () {  this._cipher.scrub();};
export default StreamCipher;