Re: Most secure way to reset a password via email link

From	Denis McMahon <denismfmcmahon@gmail.com>
Newsgroups	comp.lang.php
Subject	Re: Most secure way to reset a password via email link
Date	2014-03-05 19:51 +0000
Organization	A noiseless patient Spider
Message-ID	<lf7v8r$7el$2@dont-email.me> (permalink)
References	<dd08a623-1882-412f-bb6f-c5c6bfe409e7@googlegroups.com> <0.7c6306525de79ca69666.20140305145614GMT.87siqw8zjl.fsf@bsb.me.uk> <lf7g83$jg6$1@news.albasani.net> <6a00bdfc-d14b-4518-8476-76b19fe35dc9@googlegroups.com>

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On Wed, 05 Mar 2014 07:54:35 -0800, jvd_200089 wrote:

> On Wednesday, 5 March 2014 15:35:30 UTC, The Natural Philosopher  wrote:

> Yes, email link will point to https:// but when using SSL what wrong
> with just redisplaying the password on the screen

FUCK THE HELL NO!

The ability to display the old password implies that you're either 
storing it in the clear (this is worst possible practice) or using a 
reversible hashing method (this is the second worst possible practice).

When a user sets a password, it should be one-way hashed[1], and the hash 
stored. When a user tries to log in, apply the same one way hashing 
function, and check the hash of the supplied password with the stored 
hash of the original password.

Never ever ever ever store passwords in a manner that they can be 
recovered, because when your database gets hacked (and the whole world 
now knows you have a database of passwords waiting to be hacked that 
might be stored in the clear) all your customers passwords will be 
completely compromised almost immediately.

[1] Hashing includes salting.

-- 
Denis McMahon, denismfmcmahon@gmail.com

Thread

Most secure way to reset a password via email link jvd_200089@yahoo.co.uk - 2014-03-05 05:02 -0800
  Re: Most secure way to reset a password via email link Jerry Stuckle <jstucklex@attglobal.net> - 2014-03-05 08:49 -0500
  Re: Most secure way to reset a password via email link Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-03-05 14:56 +0000
    Re: Most secure way to reset a password via email link The Natural Philosopher <tnp@invalid.invalid> - 2014-03-05 15:35 +0000
      Re: Most secure way to reset a password via email link jvd_200089@yahoo.co.uk - 2014-03-05 07:54 -0800
        Re: Most secure way to reset a password via email link Gregor Kofler <usenet@gregorkofler.com> - 2014-03-05 17:34 +0100
          Re: Most secure way to reset a password via email link Arno Welzel <usenet@arnowelzel.de> - 2014-03-19 17:05 +0100
        Re: Most secure way to reset a password via email link Denis McMahon <denismfmcmahon@gmail.com> - 2014-03-05 19:51 +0000
          Re: Most secure way to reset a password via email link The Natural Philosopher <tnp@invalid.invalid> - 2014-03-05 21:47 +0000
    Re: Most secure way to reset a password via email link Christoph Michael Becker <cmbecker69@arcor.de> - 2014-03-05 17:29 +0100
  Re: Most secure way to reset a password via email link "J.O. Aho" <user@example.net> - 2014-03-05 18:53 +0100
    Re: Most secure way to reset a password via email link Chuck Anderson <cycletourist@invalid.invalid> - 2014-03-05 14:26 -0700
      Re: Most secure way to reset a password via email link "Peter H. Coffin" <hellsop@ninehells.com> - 2014-03-05 16:44 -0600
      Re: Most secure way to reset a password via email link Richard Yates <richard@yatesguitar.com> - 2014-03-05 15:51 -0800
        Re: Most secure way to reset a password via email link The Natural Philosopher <tnp@invalid.invalid> - 2014-03-06 00:12 +0000
          Re: Most secure way to reset a password via email link Geoff Muldoon <geoff.muldoon@trap.gmail.com> - 2014-03-06 11:30 +1100
            Re: Most secure way to reset a password via email link The Natural Philosopher <tnp@invalid.invalid> - 2014-03-06 00:58 +0000
              Re: Most secure way to reset a password via email link Geoff Muldoon <geoff.muldoon@trap.gmail.com> - 2014-03-06 13:38 +1100
              Re: Most secure way to reset a password via email link Arno Welzel <usenet@arnowelzel.de> - 2014-03-19 17:08 +0100
            Re: Most secure way to reset a password via email link Chuck Anderson <cycletourist@invalid.invalid> - 2014-03-05 21:13 -0700
              Re: Most secure way to reset a password via email link Geoff Muldoon <geoff.muldoon@trap.gmail.com> - 2014-03-06 16:17 +1100
                Re: Most secure way to reset a password via email link Chuck Anderson <cycletourist@invalid.invalid> - 2014-03-06 22:53 -0700
      Re: Most secure way to reset a password via email link gordonb.9e9ri@burditt.org (Gordon Burditt) - 2014-03-29 01:28 -0500
  Re: Most secure way to reset a password via email link jnorth.au@example.com - 2014-03-06 13:58 +1100
    Re: Most secure way to reset a password via email link Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-03-06 03:32 +0000
      Re: Most secure way to reset a password via email link jnorth.au@example.com - 2014-03-07 12:41 +1100
        Re: Most secure way to reset a password via email link Chuck Anderson <cycletourist@invalid.invalid> - 2014-03-06 22:55 -0700
          Re: Most secure way to reset a password via email link jnorth.au@example.com - 2014-03-07 18:45 +1100
    Re: Most secure way to reset a password via email link jvd_200089@yahoo.co.uk - 2014-03-06 05:35 -0800
  Re: Most secure way to reset a password via email link Arno Welzel <usenet@arnowelzel.de> - 2014-03-19 17:01 +0100

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