Those are useable bits by the user. It is just like DES is 64 bits but only 56 bits can used. So this means that Windows 128 bit is not really 128 bit as well ... ;-)
-----Original Message----- From: Luciano Miguel Ferreira Rocha [mailto:[EMAIL PROTECTED] Sent: Tuesday, June 17, 2003 5:50 PM To: DeGennaro, Gregory Cc: Depp, Dennis M.; Derek Perry; [EMAIL PROTECTED] Subject: Re: sshd for windows On Tue, Jun 17, 2003 at 01:36:09PM -0700, DeGennaro, Gregory wrote: > BTW - 3DES is 168 bit 3DES is only 112 bit. ENC(DEC(ENC(data, key1), key2), key3) gives you no more security than a ENC(DEC(ENC(data, key1), key2), key1). A good cryptography book should give you more information why that's that than I can. Regards, Luciano Rocha --------------------------------------------------------------------------- Evaluating SSL VPNs' Consider NEOTERIS, chosen as leader by top analysts! The Gartner Group just put Neoteris in the top of its Magic Quadrant, while InStat has confirmed Neoteris as the leader in marketshare. Find out why, and see how you can get plug-n-play secure remote access in about an hour, with no client, server changes, or ongoing maintenance. Visit us at: http://www.neoteris.com/promos/sf-6-9.htm ----------------------------------------------------------------------------
