Bitcoin: (Programming Q) Generating receive addresses from p2wsh multi-sig script?

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Generating receiving addresses of Multi-SIG P2Wash Script

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As you deepen the understanding of Bitcoin and its underlying protocols, it is essential to explore the mechanisms used by portfolios to facilitate safe transactions. A critical aspect is to generate receiving addresses required to recover funds from other users.

In this article, we will examine how to generate receivable addresses from a multi-SIG P2Wash script on Python.

Prerequisites

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  • Familiarity with Bitcoin Basics and Protocol P2Wash

  • A basic understanding or programming concepts

The Multi-SIG P2Wash script **

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A multi-SIG P2Wash script is a type of portfolio that allows safe and multiple signature transactions. Here is an example of how it can be implemented:

`Python

import hashlib

Import binascii

BEC32 IMPORT PUBLICATION

Set constants for blockchain hash parameters and signature derivation

Blockchain_hash = "your_blockchain_hash_here"

SIGNIVATION PARAMETER = 3

DEF derive_signature (P, r, s):

"" Drive a signature using the public key ""

Return (Hexlify (P). Dode () + hashlib.sha256 (b "s" .tode ()). Digest (). Hex ()) % 1000000

DEF p2wpub_script (P, SIG, R, S, N):

"" Manage the Multi-SIG P2Wash Script "" "

Return Bech32.Dode_P2WSH_SCRIPT (

F "1. {sig}. {r}. {s}. {n}",

[Hexlify (P).

)

DEF Main ():

Drive the public key, signature and random number

p = derive_signature ("your_public_key_here", 0x12, 0x34)

R = derive_signature (P, 1, 2)

s = derive_signature (r, 3, 4)

n = derive_signature (s, 5, 6)

GENER THE MULTI-SIG P2Wash Script

Script = p2wpub_script (p, none, r, s, n)

Print the generated script

Print (script.dode ("UTF-8"))))

If __Name__ == "__Main__":

Main ()

Generating receiving addresses

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A receiving address is an exclusive identifier that can be used to recover funds from other users. In the context of P2Wash, receiving addresses are usually derived using a similar process.

The p2wpub_script function generates a multi-SIG P2Wash script, which includes the public key, signature, random number and non-random parameters (R, s, n). To generate recognition addresses from this script, we need to derive an exclusive identifier that is not present in the script.

Here is an updated version of the code:

` Python

import hashlib

Import binascii

Set constants for blockchain hash parameters and signature derivation

Blockchain_hash = „your_blockchain_hash_here”

SIGNIVATION PARAMETER = 3

DEF derive_signature (P, r, s):

„” Drive a signature using the public key „”

Return (Hexlify (P). Dode () + hashlib.sha256 (b „s” .tode ()). Digest (). Hex ()) % 1000000

DEF p2wpub_script (P, SIG, R, S, N):

„” Manage the Multi-SIG P2Wash Script „” „

Return Bech32.Dode_P2WSH_SCRIPT (

F „1. {sig}. {r}. {s}. {n}”,

[Hexlify (P).

)

DEF deriv_receive_address (script, script_hash):

„” Drive a receiving address of the Multi-SIG P2Wash script „” „”

Extract the non -random parameters (R, S, N) and hash

r, s, n = extract_parameters (script)

Drive an exclusive identifier using the Sha-256

Id = hashlib.sha256 (r + s + n.encode ()).

Return F „2. {Id.hex ()} {blockchain_hash}”

DEF Extract_parameters (script):

„” Extract non -random parameters (R, S, N) and Hash from the script „” „

Extract the signature parameters, random number and not random

R, S = Extract_signature (script)

Id = hashlib.sha256 (r + s.encode ()).

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