This may be true if you have an improperly setup tunnel; however, most installations default to renegotiating the keys at least every 24 hours. That would mean, even the same data passing through the tunnel at the same time each day will look much different.
M. Dante Mercurio, CCNA, MCSE+I, CCSA Consulting Services Manager Continental Consulting Group, LLC www.ccgsecurity.com <http://www.ccgsecurity.com> [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > -----Original Message----- > From: Salman Siddiqui [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, January 02, 2002 1:08 PM > To: 'Security-Basics List' > Subject: RE: Has 3des been broken > > > VPN's pass a huge amount of data. A lot of that data is > repetitive and predictable. > > Given these two factors and sheer volume of data given, it > may be possible to extrapolate the keys from crypto. > > Any thoughts on this? > > Salman > > -----Original Message----- > From: Jay D. Dyson [mailto:[EMAIL PROTECTED]] > Sent: Saturday, December 29, 2001 5:09 PM > To: Security-Basics List > Subject: RE: Has 3des been broken > > 8X--------snip--- > > 2. In World War II, the Allies had a hoot at cracking changes in > the > Nazi Enigma whenever Hitler had a birthday. Hitler's > minions were > more than happy to send der Fuhrer birthday greetings in both > encrypted and plain text. > > 8X--------snip--- > > > >
