Covert Communication Scheme Based on Bitcoin Transaction Mechanism

Table 7

Time costs.

Description	Time Costs
Generate random number (ms)	0.019
Encryption (ms)	1.077
Decryption (ms)	0.999
Generate bitcoin address through private key (ms)	5.988
Generate bitcoin address through public key hash (ms)	1.008
Call API to get transaction Ts (s)	2.919389
Call API to get withdrawn transaction Ts (s)	3.215613
Update key and address (ms)	1.002
Verify signature (ms)	39.042