Is it possible to “mark” the output scenarios of Segwit with arbitrary bytes?
The Bitcoin Network Separated Witness (SEGWIT) upgrade to improve scaling and reduce operation time. However, as part of this implementation, for some features, such as P2SH-P2WPKH operations and Scripubkey will take out specific bytes.
One area where arbitrary bytes can cause problems is the release of the output Scripubkeys, using Segwit scenarios. In this article, we will investigate whether it is possible to generate such labels with arbitrary bytes and discuss the potential consequences of Bitcoin and security.
What is Scripubkey’s output?
Scripububkey (SPK) outputs are a way to withdraw data from Bitcoin Blockchain without creating a new operation. Instead, they are designed to be used as input in subsequent operations. To create a SK output, the developers must generate a script that can be carried out on the network.
What is P2SH-P2WPKH surgery?
There are two types of Bitcoin operations (Pay-Tocript-Hash) and P2WPKH (paid private private sector key). The first uses the script to confirm the operation and the second is based on a private key to allow surgery.
Segwit scenarios
To install Segwit scenarios, developers need to generate specific bytes models that can be used as a SC output label. These labels help the net to determine which Scripububkey exit should be considered to be released and where it is intended to include in a new operation.
arbitrary bytes and labeling
Let’s say we want to create a SPK output with arbitrary bytes ready for its label. For example:
`c
OPPUPUSHBYtes_8 41206c6162656c2e op_drop op_0 op_pushbytes_20 <20 ...
`
In this case, OP_pushbytes_8Opcode pushes the byte 8 bytes model into a pile (in this example, only one byte), followed by the Label 41206C6162656c2e, followed by another OP_Drop instructions to dispose of current output output ; The final instruction "OP_PUPUSTES_20 <20 ... pushes 20 extra bytes on the top of the pile.
To generate this arbitrary label with arbitrary bytes, we need to create a custom scenario that can be used as a P2SH-P2WPKH operation label. However, this will require significant Bitcoin basic code and scenario changes.
Challenge
As you can see, the generation of arbitrary labels like above is quite complicated, so you need to be aware of the Bitcoin script generation models, labels and bytes. This complexity results from the need to ensure that the label corresponds to the P2SH-P2WPKH surgery model, while compatible with various scenarios (eg OP_PUPUS).
Potential consequences
While it is theoretically possible to generate such arbitrary labels, there are several reasons why this approach is not practical in most scenarios:
- Network Compatibility : Bitcoin script generation and label manipulation mechanisms ensure that exits can only be noted according to specific models. Arbitrary labels can cause discrepancies and conflicts with existing transactions.
2.
- Scaling : Attempting to mark each SKK output with arbitrary bytes would have a major impact on Bitcoin scaling, as this will require additional processing and memory for each surgery output.
Conclusion
Although it is theoretically possible to generate labels as above, using arbitrary bytes, the complexity of this task outweighs any potential benefit.