(CkPython) Generate RSA Public/Private Key Pair and Export to PEM

CkPython example code showing how to generate an RSA public/private key pair and export to PEM files.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux

import sys
import chilkat

success = False

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

rsa = chilkat.CkRsa()

# Generate a 2048-bit key.  Chilkat RSA supports
# key sizes ranging from 512 bits to 8192 bits.
privKey = chilkat.CkPrivateKey()
success = rsa.GenKey(2048,privKey)
if (success == False):
    print(rsa.lastErrorText())
    sys.exit()

pubKey = chilkat.CkPublicKey()
privKey.ToPublicKey(pubKey)

# Save the private key in PEM format:
success = privKey.SavePemFile("privateKey.pem")
if (success == False):
    print(privKey.lastErrorText())
    sys.exit()

# Save the public key in PEM format:
success = pubKey.SavePemFile(False,"publicKey.pem")
if (success == False):
    print(pubKey.lastErrorText())
    sys.exit()

print("Success.")