[cryptography] Application Layer Encryption Protocols Tuned for Cellular?

dan at geer.org dan at geer.org
Sat Nov 3 21:08:42 EDT 2012

 > ...
 > In practice, the 7 layer model was not an implementation recipe - TCP/IP 
 > in the broader Internet sense showed that engineering required working 
 > with the tech of the time, not the abstractions from some CS class or 
 > government contract sales team.  TCP in the narrow sense shows it again 
 > - sticking TCP in layer 4 and stopping there doesn't work - it claims 
 > everything is a stream, when 'everything is a datagram' is closer to the 
 > truth, and a more useful assumption.  TCP further assumes it can 
 > reliably deliver data, when actually it's only reliable enough if you 
 > care only enough to do the demo.
 > ...

I don't know what to think of the following, but it may be germane:



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