Algorithm 2 Telemetry Data Hash

function SendRequestData      $timestamp\leftarrow$ Current datetime      $resp\leftarrow$ Request headers as dictionary      $telemetry\_hash\leftarrow$ ‘N/A’      Initialize database cursor $conn$      if Request method is ‘POST’ then          Retrieve telemetry data between interaction start and current timestamp          $data\leftarrow$ Fetched data          if $data$ is not empty then             Initialize $telemetry\_str$, $key\_timestamps$, $total\_time\_diff$, $count$             for each entry d in $data$ do                if $d\left[3\right]$ is ‘mouse’ then                    Append mouse coordinates to $telemetry\_str$                else if $d\left[3\right]$ is ‘keyboard’ then                    Add $d\left[4\right]$ to $key\_timestamps$                end if             end for             Calculate average time between key presses             Append average time to $telemetry\_str$             Compute hash of $telemetry\_str$          end if          Insert request data into the database     end if     Commit changes to the database     Close database connection end function