Re: Unicode in passwords

From: Stephane Bortzmeyer <bortzmeyer_at_nic.fr>
Date: Mon, 5 Oct 2015 17:12:00 +0200

On Wed, Sep 30, 2015 at 04:15:30PM -0700,
 Clark S. Cox III <clarkcox3_at_gmail.com> wrote
 a message of 73 lines which said:

> You really wouldn’t want “Schlüssel” and “Schlüssel” being different
> passwords, would you? (assuming that my mail client and/or OS is not
> interfering, the first is NFC, while the second is NFD)

Hence the RFC 7613, mentioned already here by Marc Blanchet, that you
must really read if you're interesed in Unicode passwords.

In that case, the RFC is clear: NFC mandatory (and UTF-8 encoding).

   4. Normalization Rule: Unicode Normalization Form C (NFC) MUST be
       applied to all characters.
Received on Mon Oct 05 2015 - 10:13:30 CDT

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