A Reconstruction Attack Scheme on Secure Outsourced Spatial Dataset in Vehicular Ad-Hoc Networks

Table 3

Attack time per step.

Attack granularity	GetRepresent (ms)	Simplification (ms)	GetRowIndex (ms)	GetColIndex (ms)
10 × 10	5	4	3	3
20 × 20	20	21	18	28
30 × 30	69	63	79	99
40 × 40	128	131	172	217
50 × 50	321	342	424	484
60 × 60	788	740	842	996
70 × 70	1708	1653	1379	1613
80 × 80	3358	3300	2535	2839
90 × 90	6086	6210	4336	4685
100 × 100	11229	10445	6987	7317