DAKEs: Decentralized Authenticated Key Exchange Protocols via Blockchain for Smart City

Table 4

The overall gas cost comparison.

Protocol	Deployment	Exchange	Sum
DAKE1 (1024, 160)	1,254,118	208,154	1,462,272
DAKE1 (2048, 224)	1,254,118	230,836	1,484,954
DAKE1 (2048, 256)	1,254,118	253,326	1,507,444
DAKE1 (3072, 256)	1,254,118	253,326	1,507,444
DAKE2 (1024, 160)	1,254,118	459,585	1,713,703
DAKE2 (2048, 224)	1,254,118	686,405	1,940,523
DAKE2 (2048, 256)	1,254,118	731,385	1,985,503
DAKE2 (3072, 256)	1,254,118	912,841	2,166,959
DAKE3 (1024, 160)	926,738	2,316,224	3,242,962
DAKE3 (2048, 224)	926,738	4,493,720	5,420,458
DAKE3 (2048, 256)	926,738	4,493,696	5,420,434
DAKE3 (3072, 256)	926,738	6,671,180	7,597,918
DAKE4 (1024, 160)	1,254,118	643,464	1,897,582
DAKE4 (2048, 224)	1,254,118	1,006,376	2,260,494
DAKE4 (2048, 256)	1,254,118	1,006,376	2,260,494
DAKE4 (3072, 256)	1,254,118	1,369,288	2,623,406
DAKE5 (1024, 160)	1,078,513	2,505,604	3,584,117
DAKE5 (2048, 224)	1,078,513	3,862,800	4,941,313
DAKE5 (2048, 256)	1,078,513	4,683,076	5,761,589
DAKE5 (3072, 256)	1,078,513	6,860,536	7,939,049