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// Copyright 2018-2023 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 { xor } from "../xor.ts";import { Buffer } from "../../../../buffer.ts";
function getBlock(self) {  self._prev = self._cipher.encryptBlock(self._prev);  return self._prev;}
export const encrypt = function (self, chunk) {  while (self._cache.length < chunk.length) {    self._cache = Buffer.concat([self._cache, getBlock(self)]);  }
  const pad = self._cache.slice(0, chunk.length);  self._cache = self._cache.slice(chunk.length);  return xor(chunk, pad);};