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Re: st: encrypt an ID


From   Jeph Herrin <junk@spandrel.net>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: encrypt an ID
Date   Wed, 07 Apr 2010 15:22:13 -0400

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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