The Unbreakable Cipher (2)

coderman coderman at gmail.com
Wed Sep 25 23:49:57 PDT 2013


On Wed, Sep 25, 2013 at 11:38 PM, coderman <coderman at gmail.com> wrote:
>...
> the key is to re-key so frequently there is never a significant volume
> transferred under the same symmetric key.


this also is useful for constraining the duration of an authenticated session.

if you must "attest" to the authenticated status of an entity at a
frequent interval, the use of a panic button or other key zeroisation
/ session abort mode becomes much more useful and actionable, denying
access to the protected resource within milliseconds of a "panic"
event occurring.

this is another long tangent for another day...



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