45 lines
1.6 KiB
Python
45 lines
1.6 KiB
Python
from cryptography.hazmat.primitives import serialization
|
|
from cryptography.hazmat.backends import default_backend
|
|
|
|
class KeyStorage:
|
|
def __init__(self):
|
|
self.private_key = None
|
|
self.public_key = None
|
|
|
|
def import_pem_private_key(self, passphrase:str, pem_file):
|
|
with open(pem_file, "rb") as key_file:
|
|
self.private_key = serialization.load_pem_private_key(
|
|
key_file.read(),
|
|
password=passphrase.encode(),
|
|
backend=default_backend()
|
|
)
|
|
|
|
def import_pem_public_key(self, pem_file):
|
|
with open(pem_file, "rb") as key_file:
|
|
self.public_key = serialization.load_pem_public_key(
|
|
key_file.read(),
|
|
backend=default_backend()
|
|
)
|
|
|
|
def export_pem_private_key(self, passphrase:str, pem_file):
|
|
if self.private_key:
|
|
pem = self.private_key.private_bytes(
|
|
encoding=serialization.Encoding.PEM,
|
|
format=serialization.PrivateFormat.PKCS8,
|
|
encryption_algorithm=serialization.BestAvailableEncryption(passphrase.encode())
|
|
)
|
|
with open(pem_file, 'wb') as f:
|
|
f.write(pem)
|
|
else:
|
|
raise ValueError("No private key found!")
|
|
|
|
def export_public_key(self, pem_file):
|
|
if self.public_key:
|
|
pem = self.public_key.public_bytes(
|
|
encoding=serialization.Encoding.PEM,
|
|
format=serialization.PublicFormat.SubjectPublicKeyInfo
|
|
)
|
|
with open(pem_file, 'wb') as f:
|
|
f.write(pem)
|
|
else:
|
|
raise ValueError("No public key found!") |