Privacy-Preserving Vehicle Assignment in the Parking Space Sharing System

Algorithm 1 BABLL.

1: Fetch the information (, and ) from the server; use to decrypt the information into ( and )

 Input: and ;

 Output:;

2: if trapezoid of is at the boundary of then

3:  require adjacent blocks and merge them into

4: end if

5: for (i=1 to m) in do

6:  if matches with then

7:   get and merge into

8:  end if

9: end for

10: sort by distance and form the result set()

11: return

Algorithm 1 BABLL.