Based on Consortium Blockchain to Design a Credit Verifiable Cross University Course Learning System

Table 3

Communication cost analysis of the proposed scheme.

Item; Phase	Message length (bits)	Round	3.5 G (14 Mbps)	4 (ms) G (100 Mbps)	5 (ms) G (20 Gbps)
User registration phase	640	3	0.046	0.006	0.032 us
Course registration phase	4272	2	0.305	0.043	0.214 us
Course learning phase	6320	2	0.451	0.063	0.316 us
Credit application phase	240	1	0.017	0.002	0.012 us
Credit verification phase	6400	2	0.457	0.064	0.320 us