[e2e] Regarding use of Reed-Solomon code in wireless networks

Detlef Bosau detlef.bosau at web.de
Wed May 6 07:44:07 PDT 2015

Am 06.05.2015 um 15:02 schrieb Debarshi Sanyal:
> Hi Detlef, Khaled,
> Thanks for sharing your views.
> For the detection mechanism to work, retransmission must be explicitly
> switched off (as retransmitting same nonce gives advantage to the wormhole
> attacker).

Even then the problem is to discern a wormhole from noise. Years ago,
the community discussed the "loss differentiation problem" which
focussed on the question whether a lost packet was due to congestion or
due to corruption. In WiFi networks, the question is whether a lost
packet is due to collision or due to corruption. Disabling
retransmission in WiFi networks means disabling the MAC scheme. (NB:
There is no such thing as collision DETECTION in WiFi.)

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