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Re: [Xen-devel] Other additional vnet questions

  • To: Mike Wray <mike.wray@xxxxxxxxxx>
  • From: Felipe Alfaro Solana <felipe.alfaro@xxxxxxxxx>
  • Date: Sat, 12 Feb 2005 00:31:40 +0100
  • Cc: bgb@xxxxxxxxx, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Fri, 11 Feb 2005 23:32:58 +0000
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On Thu, 10 Feb 2005 13:21:30 +0000, Mike Wray <mike.wray@xxxxxxxxxx> wrote:
> I use IPSEC ESP for the message transform, and at the moment
> the key and cipher suite are hard-coded.
> I can hear the <groan> about that from here too!

You are fine using manually-keyed SA with IPSec, as long as you
remember to rekey soon enough to prevent the ESP counter to overflow.
For an IPSec ESP SA so be considered secure, the counter used in CTR
mode must never get reused and the keys used safely stored.

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