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Python generate public private key pair

from cryptography.hazmat.primitives import serialization as crypto_serialization
from cryptography.hazmat.primitives.asymmetric import rsa
from cryptography.hazmat.backends import default_backend as crypto_default_backend

key = rsa.generate_private_key(
    backend=crypto_default_backend(),
    public_exponent=65537,
    key_size=2048
)

private_key = key.private_bytes(
    crypto_serialization.Encoding.PEM,
    crypto_serialization.PrivateFormat.PKCS8,
    crypto_serialization.NoEncryption()
)

public_key = key.public_key().public_bytes(
    crypto_serialization.Encoding.OpenSSH,
    crypto_serialization.PublicFormat.OpenSSH
)

Source: stackoverflow.com

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