[Cryptography Team] MD5 plugin

[leves at elte.hu]

Hi Ron!

Quoting Ron Teitelbaum <Ron at USMedRec.com>:

> Hi Levente,
>
> This looks great!  Thank you.  What bug did you find?
>

For the empty string the result was '0123456789abcdeffedcba9876543210'  
instead of 'd41d8cd98f00b204e9800998ecf8427e' with the following code:  
(MD5 hashMessage: '') hex asLowercase.

> You understand that by releasing this in the Cryptography repository that
> you are releasing it using the MIT License?
>

Of course. :)

> So when can you do SHA256?  :)
>

As soon as I need a faster implementation for it. :)


Levente