Missing DES implementation

[macfisherman]

Thanks for writing this package. It seems to be missing the DES implementation?

crypt() is the password encryption function.  It is based on the Data Encryption Standard algorithm with variations intended (among other things) to discourage use of hardware implementations of a key search.

If a salt didn't have $id$ in it, it should end up doing the basic crypt that results in a hash of length 13.

[macfisherman]

crypt background