Research Article
Covert Communication Scheme Based on Bitcoin Transaction Mechanism
Table 3
Experimental parameters (Experiment
1).
| Notations | Description | Content | Length |
| K | Key | 0x77832f538aaaf37568d33979dafdaa680320beeaff668d1f6f92909b04584b9d | 256 bits | k | Symmetric key | 0x64306534323833336335646664353437 | 128 bits | m | Secret information | Blockchain | 80 bits | c | Secret information ciphertext | 0x8457d9399440782f6fa421fd542e7d10 | 128 bits | r | Random number | 0xf0a1b49d | 32 bits | Hash_Pks | Special public key hash | 0x8457d9399440782f6fa421fd542e7d10f0a1b49d | 160 bits | As | Special address (as output address) | 1D4mS9QBj8TwVxJjSUSVGrZVr2GFnU3EHa | 34 bytes | AK | The address generated with the key K as the private key (as the input address) | 16kETg9eyFCGXddjZJkBb6LjAGXXP3oSTt | 34 bytes | ID_Ts | The ID of special transaction | 0x35b1b6dd6eecd67716beb4eec02c9fe0305b047f57a99d7c1d4ce4a869059c5f | 64 bytes |
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