An Efficient Encrypted Floating-Point Representation Using HEAAN and TFHE

Table 4

Experiment results on various mantissa bit lengths when the bit length of exponent is fixed to four (in seconds).

Fraction bit length	TFHE				HEAAN				Log p (p-bit)
	ADD	MULT	DIV	COMP	ADD	MULT	DIV	COMP
23	489.613	162.195	686.513	5.70388	185.735	10.735	417.938	171.706	28
33	1351.28	446.062	2275.67	12.0943	166.174	10.783	716.644	152.721	38
43	1167.55	571.274	2950.23	12.6297	583.492	10.659	1066.72	531.607	48
52	1207.52	686.463	3559.19	13.0962	1110.84	10.449	2162.76	941.9	57