(CkPython) Decrypt2

Demonstrates how to decrypt MIME using a certificate and private key where the certificate and its corresponding private key are stored in separate files -- a .cer for the certificate, and a .pem for the private key.

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

import sys
import chilkat

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

mime = chilkat.CkMime()

# Load the certificate from a .cer file.
cert = chilkat.CkCert()
success = cert.LoadFromFile("aaworkarea/myCert.cer")
if (success == False):
    print(cert.lastErrorText())
    sys.exit()

# Load the private key from an encrypted PEM file.
# (A private key can be loaded from other file formats also..)
privKey = chilkat.CkPrivateKey()
success = privKey.LoadEncryptedPemFile("aaworkarea/myPrivateKey.pem","myPassword")
if (success == False):
    print(privKey.lastErrorText())
    sys.exit()

success = mime.LoadMimeFile("aaworkarea/encryptedMime.txt")
if (success == False):
    print(mime.lastErrorText())
    sys.exit()

# Decrypt using the cert and associated private key
success = mime.Decrypt2(cert,privKey)
if (success == False):
    print(mime.lastErrorText())
    sys.exit()

# Save the S/MIME to a file.
success = mime.SaveMime("aaworkarea/decryptedMime.txt")
if (success == False):
    print(mime.lastErrorText())
    sys.exit()

print("success!")