Signature Testing on P2WPKH Deal: Step by Step
Cryptocurrencies, such as Bitcoin, have gained tremendous popularity over the years, and one of the most important security properties that contribute to their reliability is the process of verification of signature transactions. In this article, we will go into how to check signatures on the P2WPKH (private transaction) deal with Bitcoin.
Standard P2PKH Signature Verification Process
For standard P2PKH transactions, the signature test process includes the following:
1
Newtransaction : The transaction is set up and includes the sender’s address, the recipient’s address, the amount and other relevant information.
- settle Txouts well : The results of the transaction are settled (i.e., their residues are updated) to ensure that the transaction has enough funds.
3
Set all Txin scripts to blank : All transaction entrances are set to an empty script hash, stating that from the sender’s wallet to the addressee’s address will not be forwarded.
- Insert previous locking information
: The «Preliminary Locking» field contains the previous locking script (such as the sender’s public key) and all related data.
signature digestion generation
To check the signature in the P2WPKH transaction, we need to make a signature digestion. Here’s how:
- Create a new object “Transaction” : A new
Newtransaction 'object is created that includes all the information you need.
- settle txouts well : Outputs are settled according to the specified terms.
3
Set all Txin scripts to blank : All transaction entrances are set to an empty script hash.
- Insert previous locking information : Previous locking data is placed in the transaction.
Signature Digest Generation
Signature Digest is generated using a cryptographic hash function (for example, SHA-256). The resulting hexadecimal string is used to verify the signature in future transactions.
Here is an example of how to generate signature digestion:
Python
hash
Tx_outs = {"sum": 10.0, "scriptpubkey": "q1 ..."}
tx_in_scripts = {}
Previous_locking = {"Public_Key": "Sends_public_Key"}
New_transaction = Newtransaction (TX_outs = TX_outs,
tx_in_scripts = tx_in_scripts,
Previous_locking = Previous_locking)
Generate a signature digesting using SHA-256
Signature_digest = Hashlib.sha256 (New_transaction.signature) .Hexdigest ()
Signature Testing in P2WPKH Deal
To check the signature in the P2WPKH transaction, you must follow these steps:
- Get the signed data : The recipient of the transaction must receive the signed data that includes the transaction ID and other relevant information.
- Create a new object «Transaction» : A new
Newtransaction" object is created, including all the information you need.
3
settle txouts well : Outputs are settled according to the rules specified.
- Set all Txin scripts to blank : All the transaction entrances are set to the empty script hash.
- Insert previous locking information : Previous lock data is placed in the transaction.
Check the signature in the P2WPKH deal
Here's how to check the signature in the P2WPKH transaction:
` Python
hash
Signed_data = …
Tx_outs = {«Sum»: 10.0, «Scriptpubkey»: signed_data}
tx_in_scripts = {}
Previous_locking = {}
New_transaction = Newtransaction (TX_outs = TX_outs,
tx_in_scripts = tx_in_scripts,
Previous_locking = Previous_locking)
Generate a signature digesting using SHA-256
Signature_digest = hashlib.sha256 (new_transaction.signature).