Please don't ever use code like this, for several reasons:

  1. The code is obfuscated, and therefore the only point of it is to display the author's cleverness. It was not meant to be used as a library.
  2. Chances are, you don't understand it on a mere glance. Using code you don't understand can lead to "Cargo Cult Programming", which is a dangerous habit to fall into.
  3. Worse, since the code is (intentionally) difficult to read, it probably hasn't had any peer review. This code could have bugs or security holes. Encryption code that hasn't had some kind of intense peer evaluation should *NEVER EVER* be used.

If you want to use the SHA algorithm, please use Digest::SHA2 or Digest::SHA1.

In reply to Re: Re: Why applying MD5 hash twice? by jryan
in thread Why applying MD5 hash twice? by huguei

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