Security Basics
Fwd: Rainbow Tables Aug 02 2013 06:36AM
Syn Ack (synackackack gmail com) (1 replies)
Re: Fwd: Rainbow Tables Aug 06 2013 05:04PM
Michael Peppard (mpeppard impole com) (1 replies)
Re: Fwd: Rainbow Tables Aug 06 2013 07:49PM
Jeffrey Walton (noloader gmail com) (1 replies)
RE: Fwd: Rainbow Tables Aug 07 2013 08:10AM
Nwadinobi, Edward (Edward Nwadinobi uk daiwacm com)
Please remove my email from your circulation list.

Thanks

Edward

-----Original Message-----
From: listbounce (at) securityfocus (dot) com [email concealed] [mailto:listbounce (at) securityfocus (dot) com [email concealed]] On Behalf Of Jeffrey Walton
Sent: 06 August 2013 20:50
To: Michael Peppard
Cc: security-basics (at) securityfocus (dot) com [email concealed]
Subject: Re: Fwd: Rainbow Tables

On Tue, Aug 6, 2013 at 1:04 PM, Michael Peppard <mpeppard (at) impole (dot) com [email concealed]> wrote:
> "Finally, given salt predominantly in use in modern password hash
> schemes, pen testing in realistic modern conditions, are rainbow
> tables still of value?"
>
> The sole purpose of salt is to make rainbow tables extinct. It has no
> other value ...
Salts also ensure that two users with the same password have different digested password entries in the database.

It was recently proven that salt is a good thing. "Multi-Instance Security and its Application to Password-Based Cryptography,"
http://eprint.iacr.org/2012/196.pdf.

Jeff

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