An Improved Broadcast Authentication Protocol for Wireless Sensor Networks Based on the Self-Reinitializable Hash Chains
Algorithm 2
Authentication of fresh nodes with cluster heads.
(1)
for fresh node do
(2)
:
(3)
:
(4)
: computes and compares the fingerprints and
(5)
if the fingerprint is true then
if the fingerprint is true then
(6)
:, where
(7)
:, where
(8)
else
(9)
:, where
(10)
end if
(11)
else
(12)
if the fingerprint is true then
(13)
:, where
(14)
else
(15)
Authentication failure
(16)
end if
(17)
end if
(18)
end for
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