recreate program code with javascript.

I want to recreate program code of attach file with javascript. It is simple encryption program code. Requirement - It should get the same results for javascript file as PHP file(attach file). - you make the test code like [login to view URL](attach file), please indicate that the results are correct. - Please put out your javascript file and test code file(html) as a result. attach file([login to view URL]) exists in the following 2 files. - [login to view URL] simple encryption program code(PHP) - [login to view URL] Source file for the test(PHP)