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from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives.asymmetric import rsa
from cryptography.hazmat.backends import default_backend
# Génération de la clé privée
private_key = rsa.generate_private_key(
public_exponent=65537,
key_size=2048,
backend=default_backend()
)
# Sauvegarde de la clé privée au format PEM
with open('private_key.pem', 'wb') as f:
f.write(private_key.private_bytes(
encoding=serialization.Encoding.PEM,
format=serialization.PrivateFormat.PKCS8,
encryption_algorithm=serialization.NoEncryption()
))
# Génération de la clé publique
public_key = private_key.public_key()
# Sauvegarde de la clé publique au format PEM
with open('public_key.pem', 'wb') as f:
f.write(public_key.public_bytes(
encoding=serialization.Encoding.PEM,
format=serialization.PublicFormat.SubjectPublicKeyInfo
))