Blockchain-Based Secure Outsourcing of Polynomial Multiplication and Its Application in Fully Homomorphic Encryption

Table 3

Details of time consumption in key generation.

	Verification (s)	DFTRV/IDFTRV (s)	Communication (s)	Others (s)	FFT/IFFT (s)
User	0.37	0.89	0.46	0.58	0
Smart contract	0	0	1.01	0	0
Computational nodes	0	0	0.52	0	0.19