Re: st: encrypt an ID

[Jeph Herrin <junk@spandrel.net>]

Thanks. That's exactly what I arrived at myself after posting, so
I guess I'm good.

cheers,
Jeph


Austin Nichols wrote:
> See
> http://statalist.org/archive/2007-06/msg00456.html
>
> On Wed, Apr 7, 2010 at 3:05 PM, Jeph Herrin <junk@spandrel.net> wrote:
> > This has come up before in the archives, but the
> > answer has not, so worth trying again.
> >
> > I have a dataset with individuals who have 9 digit
> > numeric identifiers. I need to encrypt these identifiers
> > uniquely (ie, in a way that I can unencrypt them later
> > if needed). The encrypted key can be numeric or string.
> >
> > I can do something silly like move the digits around
> > according to some pattern I invent, but would be nice if
> > there were something more robust available - is there?
> > If not existing Stata code, maybe an existing alogorithm
> > that isn't too difficult to implement?
> >
> > cheers,
> > Jeph
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