Bitcoin Signature Implementation: Python and Electrium Comparison
Bitcoin is decentralized and the open source book is created on a complex cryptographic system, highly based on safe coding practice. In this article, we will delve into the differences between how the Bitcoin report signatures are implemented by Python compared to his native electricity.
Background: Bitcoin Signature
When sending an operation on the Bitcoin network, the miners confirm that the sender has sufficient funds to cover the operation fees and that the operation is valid. To achieve this, they use a public key related to each private wallet key. This process includes a message (operation) with the sender’s private key, using Sha-256, then encrypting it with the sender’s public key.
Implementing Python: Bit
Python’s Bitcoin Cryptography Library (Bit) is a simple and safe way to handle private keys and messaging signatures. The « key » object marks the private WIF format key, and the Verify_sig feature is a bag and signature as an input and tries to check them.
`Python
from the bits import key
WIF_PRIVATE_KEY = ‘KXB19KFRRRMT79BVG4TNKIBVCVJKVJKP1ibgggggggggggggggggggggggggggggggggggggggggggggggggggggGJNH787H39QG’
Create a new private key object from WIF private key
Private_Key = key.from_wif (wif_private_key)
Get the sender’s public address using a private key
public_address = private_key.get_public ()
Mix the operation with a private key and get a signature
Transaction_hash = Private_Key.hash_transaction (Public_address, 0.0001)
Signature = Private_Key.sign (Transaction_hash)
Check the signature to the bag
Result = Verify_sig (Private_Key, Contraction_hash, Signature)
Print (result)
`
Implementation in Electricity: ECDSA
In contrast, the Electrum wallet installation uses an ellipse curve digital signature algorithm (ECDSA) to sign a message. This library is a safer and more effective way to handle private keys and signatures.
`Python
from the bits import key
WIF_PRIVATE_KEY = ‘KXB19KFRRRMT79BVG4TNKIBVCVJKVJKP1ibgggggggggggggggggggggggggggggggggggggggggggggggggggggGJNH787H39QG’
Create a new private key object from WIF private key
Private_Key = key.from_wif (wif_private_key)
Get the sender’s public address using a private key
public_address = private_key.get_public ()
Mix the operation with a private key and get a signature
Transaction_hash = Private_Key.hash_transaction (Public_address, 0.0001)
Signature = Private_Key.sign (Transaction_hash)
Check the signature to the bag
Result = Verify_sig (Private_Key, Contraction_hash, Signature)
Print (result)
`
Differences in results
After launching both implementations with the same WIF private keys and identical operations, we may notice some discrepancies:
- The result of the implementation of BIT may print a different error message or exception than the implementation of « Electrical ».
- In general, the implementation of Electrium’s can lead to more secret outputs or warnings associated with elliptical curve operations.
- Some differences between the code and alignment of the coordination may result from the differences between Python and ECDSA installations.
In summary, although both implements have similar goals, the results of the Bitcoin report signature are implemented differently by Python compared to his native electricity. Understanding these differences is necessary to develop safely and reliably develop cryptocurrency development.
