Privacy-preserving load profile matching for tariff decisions in smart grids

EURASIP Journal on Information Security

Table 1 Comparison of potential privacy breaches and their feasibility for semi-honest adversaries: none of the attacks are feasible in our protocol without collusions

	Smart meter		Third party		Utility
	Interested	Feasible	Interested	Feasible	Interested	Feasible
(a) Load profile forecast revealed			✓	– ^a	✓	– ^a
(b) Template load profiles revealed	✓	– ^a	✓	– ^a	\(\checkmark ^{\mathrm {b}}\)	– ^a
(c) Best matching tariff revealed			✓	– ^a	✓	– ^a

Int. stands for interested, feas. for feasible. Whenever attacks require collusions to be feasible, they are denoted by – ^a. A ^b denotes interest in revealing data from other entities of the same type, but not oneself, e.g., other utilities