Generate PEM-Encoded PKCS#1 Format RSA Key Pair using Python

cryptography package

1. Install cryptography package from the command line:

pip install cryptography

2. Generate PEM-encoded PKCS#1 format RSA key pair:

from cryptography.hazmat.primitives import serialization as crypto_serialization
from cryptography.hazmat.primitives.asymmetric import rsa

keySize = 2048

key = rsa.generate_private_key(public_exponent=65537, key_size=keySize)

privateKey = key.private_bytes(
    crypto_serialization.Encoding.PEM,
    crypto_serialization.PrivateFormat.TraditionalOpenSSL,
    crypto_serialization.NoEncryption()
)
privateKey = privateKey.decode('utf-8')

publicKey = key.public_key().public_bytes(
    crypto_serialization.Encoding.PEM,
    crypto_serialization.PublicFormat.PKCS1
)
publicKey = publicKey.decode('utf-8')

print(privateKey)
print(publicKey)