A Fragile Zero Watermarking Scheme to Detect and Characterize Malicious Modifications in Database Relations

Table 4

Detection of malicious update of tuples with different attack rates (𝜂=10⁶).

Update attack rate	WAR	WDR	Temper detection
10%	20.42	79.58	Yes (High)
30%	19.89	80.11	Yes (High)
50%	19.89	80.11	Yes (High)
70%	18.94	81.06	Yes (High)
90%	14.13	85.87	Yes (High)