Re:The “Cobra Effect” that is disabling paste on password fi...
by nxzero on Sunday June 26, 2016 @09:16AM
(#11980621)
>> "This post is intended to introduce concepts and practically demonstrate a method. The implementation provided is not a reliable/hardened solution (i.e. there are vulnerabilities because finite fields are not used) and should not be used anywhere near a production system."
Above is on the page you're linking to.
see http://willtracz.co.uk/shamir-secret-sharing-and-passwords