Low Communication-Cost PSI Protocol for Unbalanced Two-Party Private Sets

Table 4

Theoretical communication costs of PSI protocols with invariant (in bits).

Protocol	Communication	()
		()	()	()	()	()	()
KKRT [12]		920	2,350	4,365	8,100	31,130	123,280
CLR17 [25]		16,248	16,248	16,248	16,248	16,248	16,248
SpOT [20]	1.02 (	467	1667	3,267	6,467	25,667	102,467
PaXoS [21]		1,048	3,926	7,765	15,444	61,522	245,840
CM20 [22]		702	2,543	5,000	9,914	39,403	157,366
RS21 [3]		218	607	1,127	2,168	8,421	33,436
RT21 [2]		344	1,110	2,133	4,180	16,466	65,616
GPR21 [23]		608	2,166	4,245	8,404	33,362	133,200
Authors		612	612	612	612	612	612

Italic values indicate the best results of each column.