Re: getting started with encryption

From	"J.O. Aho" <user@example.net>
Newsgroups	comp.lang.php
Subject	Re: getting started with encryption
Date	2014-10-15 21:52 +0200
Message-ID	<ca81igFcv7hU1@mid.individual.net> (permalink)
References	(4 earlier) <m1dre8$g83$1@speranza.aioe.org> <c9vfbuF5eg6U1@mid.individual.net> <m1e62v$99h$1@speranza.aioe.org> <c9vm0pF76n1U1@mid.individual.net> <m1giau$n43$1@speranza.aioe.org>

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On 13/10/14 14:58, bill wrote:

> What do you think of this:
>
> At logon, after the user's credentials are verified, the office server
> will (over https)
> send a token request to a remote server
> take the returned token, modify it to use as transaction token
> using the transaction token, request the encryption key (the remote
> server will verify that the modified transaction token is correct)
>
> The key is then kept in a mySQL MEMORY engine table and
> the table is DROPed at logout
>
> This would protect against server theft - unless they steal the UPS
> too.  No one but the superuser knows the key. (of course the key needs
> to be kept in a secure place... just in case)

Take a look at tokenizor, you save the token in the mysql server, and 
the data on the tokenizor, so each time you need to get to the encrypted 
data, you need to ask the tokenizor to give you the data with presenting 
the right token, of course you need to validate that the user in 
question has the right to use the tokenizor.

Sure, you will be able to make a lot of things wrong in this process, 
which makes this to not work as securely as you think. There are of 
course commercial products you could use for this, but they tend to cost.

-- 

  //Aho

Thread

getting started with encryption bill <william@TechServSys.com> - 2014-10-10 14:46 -0400
  Re: getting started with encryption Matthew Carter <m@ahungry.com> - 2014-10-10 16:36 -0400
  Re: getting started with encryption John-Paul Stewart <jpstewart@sympatico.ca> - 2014-10-10 18:53 -0400
  Re: getting started with encryption "J.O. Aho" <user@example.net> - 2014-10-11 09:07 +0200
    Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-11 07:59 -0400
  Re: getting started with encryption Jerry Stuckle <jstucklex@attglobal.net> - 2014-10-11 10:36 -0400
    Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-11 10:42 -0400
      Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-11 11:45 -0400
      Re: getting started with encryption "J.O. Aho" <user@example.net> - 2014-10-11 18:38 +0200
        Re: getting started with encryption Jerry Stuckle <jstucklex@attglobal.net> - 2014-10-11 15:16 -0400
          Re: getting started with encryption "J.O. Aho" <user@example.net> - 2014-10-12 10:53 +0200
            Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-12 08:17 -0400
              Re: getting started with encryption Jerry Stuckle <jstucklex@attglobal.net> - 2014-10-12 08:47 -0400
                Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-12 11:04 -0400
                Re: getting started with encryption Jerry Stuckle <jstucklex@attglobal.net> - 2014-10-12 11:13 -0400
                Re: getting started with encryption "J. Clarke" <jclarkeusenet@cox.net> - 2014-10-12 15:12 -0400
                Re: getting started with encryption Jerry Stuckle <jstucklex@attglobal.net> - 2014-10-12 21:45 -0400
              Re: getting started with encryption "J.O. Aho" <user@example.net> - 2014-10-12 15:53 +0200
                Re: getting started with encryption Jerry Stuckle <jstucklex@attglobal.net> - 2014-10-12 10:07 -0400
                How - off topic bill <william@TechServSys.com> - 2014-10-12 11:05 -0400
                Re: How - off topic "J.O. Aho" <user@example.net> - 2014-10-12 17:27 +0200
                Re: How - off topic Denis McMahon <denismfmcmahon@gmail.com> - 2014-10-12 17:23 +0000
                Re: How - off topic Tim Streater <timstreater@greenbee.net> - 2014-10-12 18:49 +0100
                Re: How - off topic bill <william@TechServSys.com> - 2014-10-13 09:24 -0400
                Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-12 11:01 -0400
                Re: getting started with encryption Jerry Stuckle <jstucklex@attglobal.net> - 2014-10-12 11:19 -0400
                Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-13 08:38 -0400
                Re: getting started with encryption Jerry Stuckle <jstucklex@attglobal.net> - 2014-10-13 09:18 -0400
                Re: getting started with encryption - now off topic with gratuitous insults bill <william@TechServSys.com> - 2014-10-13 10:36 -0400
                Re: getting started with encryption - now off topic with gratuitous insults Jerry Stuckle <jstucklex@attglobal.net> - 2014-10-13 12:14 -0400
        Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-12 08:15 -0400
          Re: getting started with encryption "J.O. Aho" <user@example.net> - 2014-10-12 15:52 +0200
            Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-12 11:17 -0400
              Re: getting started with encryption "J.O. Aho" <user@example.net> - 2014-10-12 17:45 +0200
                Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-13 08:58 -0400
                Re: getting started with encryption Jerry Stuckle <jstucklex@attglobal.net> - 2014-10-13 09:23 -0400
                Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-13 10:44 -0400
                Re: getting started with encryption Jerry Stuckle <jstucklex@attglobal.net> - 2014-10-13 12:20 -0400
                Re: getting started with encryption "J.O. Aho" <user@example.net> - 2014-10-15 21:52 +0200
                Re: getting started with encryption gordonb.1o7q6@burditt.org (Gordon Burditt) - 2014-10-16 12:13 -0500
                Re: getting started with encryption Matthew Carter <m@ahungry.com> - 2014-10-16 15:25 -0400
                Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-18 08:13 -0400
                Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-18 07:52 -0400
                Re: getting started with encryption "J.O. Aho" <user@example.net> - 2014-10-18 14:46 +0200
                Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-19 07:47 -0400
  Re: getting started with encryption Denis McMahon <denismfmcmahon@gmail.com> - 2014-10-12 17:30 +0000
    Re: getting started with encryption bill <william@TechServSys.com> - 2014-10-13 08:59 -0400

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