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Table 1 Average data recovery times under various group sizes (unit:seconds)

From: Low-cost data partitioning and encrypted backup scheme for defending against co-resident attacks

Data

Group size

xi = 1 MB

xi = 16 MB

xi = 64 MB

xi = 256 MB

xi = 1 GB

2

0.026

0.24

1.04

4

14

3

0.039

0.36

1.56

6

21

4

0.052

0.48

2.08

8

28

5

0.065

0.6

2.6

10

35

6

0.078

0.72

3.12

12

42

7

0.091

0.84

3.64

14

49

8

0.104

0.96

4.16

16

56

9

0.117

1.08

4.68

18

63

10

0.13

1.2

5.2

20

70