Craig:  Date: 8 Jul 2003 17:33:02 -0000
Craig:  From: Craig Brauckmiller <[EMAIL PROTECTED]>
Craig:  To: [EMAIL PROTECTED]
Craig:  Subject: HTTPS - How hard to decrypt?
Craig:
Craig:
Craig:
Craig:  We have begun rolling out wireless cards to our VP laptops.  We have also
Craig:  purchased T-Mobile Hotspot accounts for them to use in such places as
Craig:  Starbucks, American Admiral's Clubs, etc.
Craig:
Craig:  >From my testing, the user name and password entry screen that TMobile
Craig:  requires you to fill in before they will allow you to do any type of
Craig:  surfing.
Craig:
Craig:  The login page does use HTTPS, so I assume the user name and password are
Craig:  encrypted when the user submits the page.
Craig:
Craig:  How hard is it to decrypt SSL based traffic over a wireless link or wired
Craig:  for that matter?  Is it something trivial, or would it take some time to
Craig:  break?  I just worry about a hacker hanging out at Starbucks and snagging
Craig:  a user name and password for free internet access.
Craig:
Craig:  Thanks
Craig:
Craig:  Craig Brauckmiller



IMHO

I should think it depends on a few factors, mainly the number of bits used
in the encryption.  64-bit encryption would take less time than 128-bit.

Given enough time brute force will crack anything.

I dont see someone sitting at Starbucks wasting time trying to crack the
standard 128-bit SSL.  I dont think you have anything to worry about.



 Scott Birl                              http://concept.temple.edu/sysadmin/
 Senior Systems Administrator            Computer Services   Temple University
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