Rank-Based Report Filtering Scheme (RRFS) for Verifying Phoney Reports in Wireless Sensor Networks

Algorithm 6

ICR verification.

REQUIRE:

OUTPUT: ICR for en-routers, True, False

Step 1: CH checks the integrity using

Step 2: CH broadcasts ICR, to CM

Step 3: UN_i checks whether it can verify the report by checking ID of DN

Step 4: Set

Step 5: If ()//Check whether the downstream node is connected

    If (0)//verifying MAC

CM set //drop the report and informs CH

    Else

      //Compute ICR for upstream verification

      Forward ICR to CH//Next hop verification

  Else

    Forward ICR to CH//no downstream connected nodes.

    Return value

  End if

Step 6: Return value