"crypt" sources - where?

[Guido Hoss]

I am developing an application for SCO Xenix and MS-DOS. The "crypt"
routine exists in the Xenix libraries, but not in the DOS cross-
development libraries. My application uses crypt.

1) Is there a public-domain implementation (w/source) of the UNIX "crypt"
   library call?

2) Alternatively: Does a public-domain implementation of the DES
   algorithm exist, and from where can it be obtained? (European sites
   and mail servers preferred)

Please e-mail. I will post a summary if appropriate.

Thank you,
-Guido Hoss