Table 2 Experimental computing time (seconds) for identification of total drug exposure (multiplication)
Lambda (security measure in bits) | Multiplication depth | Time to encrypt all data for one patient | Time to multiply weight and dose data for all months | Time to add total exposure for one patient | Time to decrypt summary data for one patient | Total computation time for one patient | Estimated total time for 5000 patients |
|---|---|---|---|---|---|---|---|
128 | 8 | 13.3 | 14.7 | 2.6 | 0.2 | 30.8 | 42 h |
256 | 8 | 13.3 | 14.9 | 2.6 | 0.2 | 31.0 | 43 h |
256 | 16 | 56.8 | 42.4 | 5.3 | 0.8 | 105.3 | 146 h |