Verification of the signature in a P2WPKH transaction: a step by step guide

Crypto-currencies like Bitcoin have been gained in popularity over the years and, on the largest verification of the signature transaction process. In this article, we will immerse ourselves on how to verify signatures in a P2WPKH (private transaction) transaction on Bitcoin.

Procedure for the P2PKH standard signature

For standard P2PKH transactions, verification of signature of precession of participation implies the stages of Tallure:

• NewtransAction : The transaction is created and includes sender from the sender EDDress, recipient’s Eddress, amount, etc.

• Adjust the well txouts: the results of the ARES transaction are set (that is to say that their bullets are updated) to ensure the thesis.

– Der’s ball at the recipient’s Eddress.

– y) and any associated information.

Generation of signature digest

To check the signature in a P2WPKH transaction, we need the signature regime. Here’s how:

• Create a new object Transaction ': a new" newtransaction "object is created, it is necessary.

• set the txouts well: the outputs complies with the rules specified.

• Define all the TXIN scripts on Void : All ARE transaction inputs are are at a habit of empty script.

• Insert the previous locking information

  :

Generation of digest signature

The signature digest is generated using a cryptographic hash (for example, SHA-256). The resulting hexadecimal chain is used to check the signature in the following transactions.

Here is an example for general the signature regime:

Python

Have a hashlib

TX_OUTS = {"Amount": 10.0, "Scriptpubkey": "Q1 ..."}}}}

tx_in_Scripts = {}

Previous_Locking = {"Public_Key": "SENDER_PUBLIC_KEY"}}

new_transaction = newtransaction (tx_outs = tx_outs,

tx_in_Scripts = tx_in_Scripts,

Premer_locking = pread_locking)

Generate a signature diet using SHA-2

signature_digest = hashlib.sha256 (new_transaction.Signature). Hexdigest ()

'

Verification of the signature in a P2WPKH

transaction

To check the signature in a P2WPKH transaction, you must follow people:

• Get the signed data :

• ** Create a new objectTransaction: a new" newtransaction "object is a screen, which requires everything you need.

• set the txouts well: the outputs comply with the specified rules.

• Define all TXIN scripts on Void : All ARES transaction inputs are ARES.

• Insert the previous locking information :

Check the signature in a P2WPKH transaction

Here's how to check the signature in a P2WPKH transaction:

` Python

Have a hashlib

Signed_data = …

Tx_outs = {“Mult”: 10.0, “scriptpubkey”: signed_data}

tx_in_Scripts = {}

Previous_Locking = {}

new_transaction = newtransaction (tx_outs = tx_outs,

tx_in_Scripts = tx_in_Scripts,

Premer_locking = pread_locking)

Generate a signature diet using SHA-2

signature_digest = heashlib.sha256 (new_transaction.Signature).