Creating a raw Segwit event from scratch: Check (Multi) SIG Operation
As a Bitcoin developer, creating Segwit transactions is a fundamental task. However, understanding the underlying mechanics can be complicated, especially for beginners. In this article, we are considering details about creating a raw Segwit event from scratch and dealing with a challenging (many) SIG operations.
Segwit Basics
Before we dive into RAW Segwit events, we quickly look at the basics:
* Segwit (a separate witness) : Segwit is an extension of Bitcoin that allows multiple signatures per input. This feature was introduced to reduce the number of blocks needed to validate blocks and to increase the efficiency of the network.
* Check (Multi) SIG : Check (Multi) SIG on Segwit events used for the event’s certification mechanism. It ensures that any ministry can ensure a unique signature for each printout.
Creating a Raw Segwit event
To create a raw Segwit from scratch, you must follow these steps:
- Prepare feed information : You must prepare the feed block with multiple outputs. Each departure should have its own income and similar coins transactions.
2 Remember to determine the event version (currently 1) and the type of income (output).
3
- Create Raw Event Information : Create a Bitcoin-Java-like library to create RAW event information in PEM format.
Here is an example of how to create a raw segwit event using Bitcoin-Java:
`Java
Bring org.bouncycastle.openpgp.pgpexception;
Bring org.bouncycastle.openpgp.pgppuBlickey;
Public class rawsegwittransaction {
Public static empty main (string [] args) throws pgpexception {
// Prepare input data
Inputblock Input = New Inputblock ();
Outputblock Output1 = New Outputblock ();
Outputblock Output2 = New Outputblock ();
// create an event
Event TX = New Event (Income);
// Add Profit Information
output1.tetinputts (new arrayylist
ADD (new printing (1, « scriptpubkey », « m/44 ‘/0’/0 ‘/0 »));
ADD (new printing (2, « scriptpubkey », « M/44 ‘/1’/0 ‘/1 »));
}});
Output2.Setinputts (new arrayylist
ADD (new printing (3, « scriptpubkey », « m/44 ‘/2’/0 ‘/0 »));
ADD (new printing (4, « scriptpubkey », « m/44 ‘/3’/0 ‘/0 »));
}});
// Create raw event information in PEM format
byte [] pem = tx.topem ();
System.out.println (« Raw Segwit event: »);
System.out.println (PEM);
}
}
`
Check (Multi) SIG operation
Now that you have created a raw Segwit event, let us dive into the SIG operation.
Check (Multi) SIG ensures that each minister can ensure each output by demanding a unique signature for each income. This is how it works:
- Input validation
: Check (Multi) SIG function confirms the event’s income to ensure they are valid.
2
In the example above, we assume that the « script » of each print is correct and corresponds to the script of the reliable key. If the income validation error occurs or if a harmful event is created, check (Multi) SIG will not check the event.