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From: Alvaro Herrera <alvherre@commandprompt.com>
To: Ron Johnson <ron.l.johnson@cox.net>
Cc: pgsql-general@postgresql.org
Subject: Re: Encrypted column
Date: Tue, 5 Jun 2007 09:59:51 -0400
Message-ID: <20070605135951.GB8140@alvh.no-ip.org> (raw)
In-Reply-To: <46656398.1090203@cox.net>
References: <46645B01.6070605@terra.com.br>
	<4664983F.4010700@burntmail.com>
	<46656398.1090203@cox.net>

Ron Johnson wrote:
> On 06/04/07 17:54, Guy Rouillier wrote:

> >Many people consider two-way encryption to be insecure; two-way 
> >encryption means you can decrypt a value if you know the key, and it is 
> >insecure because you usually have to put the key into the source code. 
> >That means at least one person in your company, the programmer 
> >maintaining the source code, can learn all of your users' passwords.
> 
> Two-way encryption is needed for companies that store customer 
> credit cards.

I thought that the advice for companies storing customer CCs was: don't.

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.



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