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Re: Automatic upgrade of passwords from md5 to scram-sha256

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On Sun, 12 Jan 2025 at 17:59, Tom Lane <tgl@xxxxxxxxxxxxx> wrote:
"Peter J. Holzer" <hjp-pgsql@xxxxxx> writes:
> The web framework Django will automatically and transparently rehash any
> password with the currently preferred algorithm if it isn't stored that
> way already.

Really?  That implies that the framework has access to the original
cleartext password, which is a security fail already.

It happens upon user login. If the user's password is hashed with an old algorithm, it is re-hashed during login when the Django application running on the Web server has the password sent by the user:

https://docs.djangoproject.com/en/5.1/topics/auth/passwords/#password-upgrading

But of course this only works if the old method in use involves sending the password to the server.

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