Research Article
Covert Communication Scheme Based on Bitcoin Transaction Mechanism
Table 5
Experimental parameters (Experiment
2).
| | Notations | Description | Content | Length |
| | K | Key | 0xa00ccf6f1e9dad5fb65989b1f5697e877af0b86a1b1bf413eece4911f05d439c | 256 bits | | k | Symmetric key | 0x36633565646435343236646163653961 | 128 bits | | m | Secret information | Blockchain | 80 bits | | c | Secret information ciphertext | 0xeb82259e8576a117e4e31d6ef5bd2dcf | 128 bits | | r | Random number | 0xd304321a | 32 bits | | Hash_Pks | Special public key hash | 0xeb82259e8576a117e4e31d6ef5bd2dcfd304321a | 160 bits | | As | Special address (as output address) | 1NUFhrEGWP3ZnZx8a1D7vwv7MubJH5tNTG | 34 bytes | | AK | The address generated with the key K as the private key (as the input address) | 1FGNgSaCCDqwFNffNkPXnBeCSXcWP6WVrC | 34 bytes | | ID_Ts | The hash of special transaction | 0x97e794607851d0d752adc5459516a7be3d36da8d4dc62d23c38f4e02237a11a2 | 64 bytes | | A | Normal address | 1PSL1uSGs3LieZ5iYKRbtQFTpH2KCxgoGc | 34 bytes | | Fees | The fee of special transaction | 3.016 sat/byte | — | | Feedp | The fee of transaction that causes double-spend conflict | 10.052 sat/byte | — | | ID_Tdp | The ID of transaction that causes double-spend conflict | 0x4404f05fa0772d7d78a804faed33760c2d9466c40a49dda3d1b4215507687834 | 64 bytes |
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