A novel privacy protection scheme for internet of things based on blockchain and privacy set intersection technique

Journal of Cloud Computing

Advances, Systems and Applications

Table 3 Security function comparison among existing protocols

Protocol	Secure storage in cloud servers¹	Secure channel required²
De Cristofaro and Tsudik [12]	\(\times\)	\(\times\)
Huang et al. [19]	\(\times\)	\(\times\)
Abadi et al. [16]	\(\checkmark\)	\(\checkmark\)
Dong et al. [23]	\(\times\)	\(\checkmark\)
Ours	\(\checkmark\)	\(\times\)