Security Basics mailing list archives
Re: Fwd: Rainbow Tables
From: rstackackack () gmail securityfocus com
Date: Mon, 5 Aug 2013 14:07:52 GMT
what if it is somewhere in the match is
actually somewhere in the middle of the chain, and since we aren't storing it we don't find it. When you calculate a chain from the given hash you will eventually generate the one which is at the end of that chain, which you have stored. When you find that end of chain, you know on which chain the password lies. Since you also stored the corresponding start of chain, so you can recalculate the chain from the start to the position just before your hash and get the password. If your chains are 10'000 hashes long you save 5000 times on memory by just storing the first and last elements of that chain. The longer the chains the more you gain on memory but the more work you will have to recalculate the chains, hence the term time-memory trade-off Windows still uses unsalted hashes. GSM and SIM-cards can be broken with rainbow tables. ------------------------------------------------------------------------ Securing Apache Web Server with thawte Digital Certificate In this guide we examine the importance of Apache-SSL and who needs an SSL certificate. We look at how SSL works, how it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates. http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1 ------------------------------------------------------------------------
Current thread:
- Fwd: Rainbow Tables Syn Ack (Aug 01)
- Re: Fwd: Rainbow Tables Michael Peppard (Aug 06)
- Re: Fwd: Rainbow Tables Jeffrey Walton (Aug 06)
- RE: Fwd: Rainbow Tables Nwadinobi, Edward (Aug 07)
- Re: Fwd: Rainbow Tables Jeffrey Walton (Aug 07)
- Re: Fwd: Rainbow Tables Jeffrey Walton (Aug 06)
- Re: Fwd: Rainbow Tables Michael Peppard (Aug 06)
- <Possible follow-ups>
- Re: Fwd: Rainbow Tables rstackackack (Aug 05)