A Homomorphic Signcryption-Based Privacy Preserving Federated Learning Framework for IoTs

Table 1

Comparison of PPFLS.

PPFL	Updates privacy	Model privacy	Collusion resistant	Verifiability	Model supported
Shokri & Shmatikov	No	No	No	No	Linear & deep model
Geyer et al.	No	No	No	No	Linear & deep model
Bonawitz et al.	Yes	No	Yes	No	Linear & deep model
Phong et al.	Yes	Yes	No	No	Linear & deep model
Batchcrypt	Yes	Yes	Yes	No	Linear & deep model
Ma et al.	Yes	Yes	No	Yes	Linear & deep model
Zheng et al.	Yes	No	Yes	Yes	Linear model
Xu et al.	Yes	No	Yes	Yes	Linear & deep model
CRT-Paillier	Yes	Yes	No	Yes	Linear & deep model
VFL	Yes	Yes	Yes	Yes	Linear & deep model
Our framework	Yes	Yes	Yes	Yes	Linear & deep model

We note that, though our framework has the same property as VFL, our framework is more efficient both in computation and in communication, which will be proved in Section 5.