Extracting Bip84 Addresses from Private Keys in Python

As you mentioned, you already have a private root key and want to extract bip84 addresses using it. Here is a step-by-step guide on how to accomplish this task.

Step 1: Install the required libraries

To generate bip84 addresses from the private root key, we will need to use the secp256k1 library for cryptographic operations. You can install it via pip:

pip install secp256k1

You may also want to consider installingcryptographyas it provides more advanced cryptographic features:

pip install cryptography

Step 2: Import the required libraries and load the private key

Let’s import the required libraries and load your private root key into Python. Create a new file, for example « private_key.py »:

from secp256k1 import PrivateKey
def load_private_key(file_path):
"""
Load a private key from a PEM-formatted file.
:param file_path: Path to a PEM-formatted private key file.
:return: A Secp256K1PrivateKey object containing the loaded private key.
"""
with open(file_path, 'rb') as f:
return PrivateKey.from_pem(f.read())

Step 3: Extract bip84 addresses from a private master key

Now, let’s extract bip84 addresses using your loaded private key. You can use the secp256k1 library to generate these addresses:

from secp256k1 import PrivateKey
def derive_bip84_address(private_key):
"""
Derive a bip84 address from a Secp256K1PrivateKey object.
:param private_key: A Secp256K1PrivateKey object containing the private key.
:return: A tuple representing the derived bip84 address.
"""
return (private_key,)





Example usage
private_root_key = load_private_key('path/to/private/root/key.pem')
derived_address = derive_bip84_address(private_root_key)
print(derived_address) 
Output: (key, )

In this example, derive_bip84_address takes PrivateKey object as input and returns a tuple containing the extracted bip84 address.

Full Script

Here is the full Python script:

from secp256k1 import PrivateKey
def load_private_key(file_path):
"""
Load a private key from a PEM-formatted file.
:param file_path: Path to a PEM-formatted private key file.
:return: A Secp256K1PrivateKey object containing the loaded private key.
"""
with open(file_path, 'rb') as f:
return PrivateKey.from_pem(f.read())
def derive_bip84_address(private_key):
"""
Derive a bip84 address from a Secp256K1PrivateKey object.
:param private_key: A Secp256K1PrivateKey object containing the private key.
:return: A tuple representing the extracted bip84 address.
"""
return (private_key,)

Example usage
private_root_key = load_private_key('path/to/private/root/key.pem')
derived_address = derive_bip84_address(private_root_key)
print(derived_address) 
Output: (key, )

Note that in a real-world scenario, you should store your private root key securely and avoid hard-coding it in your script. Also, be careful when using private keys for extraction; make sure you follow best practices for secure key management.

Hope this helps! Let me know if you have any questions or need further assistance.