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Table 7 Comparison of grant read operation cost

From: Comprehensive evaluation of key management hierarchies for outsourced data

Size of initial hierarchy (M) Avg. file size UH grant op. RH grant op.
200 1MB 146.18 ms 0.481 ms
500 1MB 162.17 ms 0.472 ms
1000 1MB 193.26 ms 0.459 ms