3VSR: Three Valued Secure Routing for Vehicular Ad Hoc Networks using Sensing Logic in Adversarial Environment

. 2018 Mar 14;18(3):856. doi: 10.3390/s18030856

Algorithm 1 Trusted Routing Discovery.

Receive an

T R E Q (S, D)

or an

T R E P (S, D)

from V1;

/*Verify the trustworthiness of

V_{1}

Broadcast

T R E Q (V_{1})

to request the opinions from

V^{'} s

neighbors to

V_{1}

;

Receive opinions from

V^{'} s

neighbors:

ω_{V_{1}}^{V_{2}}, ω_{V_{1}}^{V_{3}}, ω_{V_{1}}^{V_{4}}

Combine these opinions together and get a latest:

ω_{V_{1}}^{V}

Exchange opinions about

V_{1}

with its neighbors

w_{V_{2}, V_{3}, V_{4}}^{V}

ω_{V_{1}}^{V} \neq U

and Judge the next step using conditions set in Table 1 */

b_{V_{1}}^{V} \geq 0.5

trust

V_{1}

and forward RREQ/RREP

elseif

d_{V_{1}}^{V} \geq 0.5

distrust

V_{1}

for expiry time

elseif

u_{V_{1}}^{V} \geq 0.5

request and verify digital certificate

else

/* the confidence about trustworthiness is decreased*/

request and verify

V_{1}

certificates, by default

endif