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Table 6 Grant and revoke cost in minimal vertex UH

From: Comprehensive evaluation of key management hierarchies for outsourced data

Size of initial hierarchy (M) → 200 500 1000
Operation Average file size    
Grant 100 KB 12.961 ms 13.923 ms 18.530 ms
  1 MB 146.174 ms 160.385 ms 186.561 ms
Revoke 100 KB 13.511 ms 14.223 ms 17.935 ms
  1 MB 133.274 ms 151.843 ms 172.015 ms