(CkPython) Write PKCS1 or PKCS8 Public Key PEM

Demonstrates how to write either PKCS1 or PKCS8 format PEM files. PKCS1 public keys have this PEM format:

-----BEGIN RSA PUBLIC KEY-----
BASE64 ENCODED DATA
-----END RSA PUBLIC KEY-----

-----BEGIN PUBLIC KEY-----
BASE64 ENCODED DATA
-----END PUBLIC KEY-----

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import sys
import chilkat

# Unlock the Chilkat API.
# Starting in v9.5.0.49, all Chilkat classes can be unlocked at once at the beginning of a program
# by calling UnlockBundle.  It requires a Bundle unlock code.
chilkatGlob = chilkat.CkGlobal()
success = chilkatGlob.UnlockBundle("Anything for 30-day trial.")
if (success != True):
    print(chilkatGlob.lastErrorText())
    sys.exit()

pem = chilkat.CkPem()

# Load a public key from a PEM file.
# (Assume the PEM contains at least one public key..)
success = pem.LoadPemFile("/Users/chilkat/testData/pem/myPublicKey.pem")
if (success != True):
    print(pem.lastErrorText())
    sys.exit()

numPublicKeys = pem.get_NumPublicKeys()
if (numPublicKeys == 0):
    print(("Error: Expected the PEM to contain public keys."))
    sys.exit()

# Get each public key as PEM, first in PKCS1 format, then in PKCS8.
for i in range(1,(numPublicKeys)-1):

    # First output to PKCS1 PEM format:
    print("This is PKCS1 format:")
    pem.put_PublicKeyFormat("pkcs1")
    print(pem.toPem())

    # Now PKCS8 PEM format:
    print("This is PKCS8 format:")
    pem.put_PublicKeyFormat("pkcs8")
    print(pem.toPem())