Security and Communication Networks / 2020 / Article / Alg 2

Research Article

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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