(Chilkat2-Python) Send Signed and Encrypted EDI Email (EDIFACT)

Demonstrates how to send a signed and encrypted EDI email (EDIFACT email).

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

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

#  The mailman object is used for sending and receiving email.
mailman = chilkat2.MailMan()

#  Create a new email object

#  Build the basic EDI email where the body is the EDIFACT message:
ediMsg = "UNB+IATB:1+6XPPC ..."
name = "something"
filename = "something"
charset = "iso-8859-1"
email.SetEdifactBody(ediMsg,name,filename,charset)

email.Subject = "This is the subject"
email.From = "Chilkat Admin <admin@chilkatsoft.com>"
success = email.AddTo("Chilkat Support","support@chilkatsoft.com")

#  Indicate that the email should be sent signed.
email.SendSigned = True

#  Tell the mailman to use a PFX file as a source for locating
#  the certificate and private key required for signing.
#  The certificate chosen for signing will be the one that
#  matches the sender's email address, which also has
#  a private key.  All intermediate certs in the chain of
#  authentication, up to and including the root, will
#  be included in the signature.
success = mailman.AddPfxSourceFile("/pfx_files/myCertAndPrivateKey.pfx","secret")
if (success != True):
    print(mailman.LastErrorText)
    sys.exit()

#  Load the .cer file into a certificate object.
#  When sending S/MIME encrypted email, it is the recipient's
#  certificate that is used for encryption.  Only the public key
#  is needed to encrypt.  The recipient is the only
#  one possessing the private key, and therefore is the only
#  one able to decrypt.

success = cert.LoadFromFile("/certs/recipientCert.cer")
if (success != True):
    print(cert.LastErrorText)
    sys.exit()

#  Indicate that the email is to be sent encrypted.
email.SendEncrypted = True

#  Indicate that we want 192-bit 3DES encryption:
email.Pkcs7CryptAlg = "3des"
email.Pkcs7KeyLength = 192

#  Specify the certificate to be used for encryption.
success = email.SetEncryptCert(cert)

#  Tell the mailman to use an opaque signature (as opposed to a detached signature)
mailman.OpaqueSigning = True

#  SMTP server (use your settings and refer to the online
#  reference  documentation for more options)
mailman.SmtpHost = "smtp.mymailserver.com"
mailman.SmtpUsername = "myLogin"
mailman.SmtpPassword = "myPassword"
mailman.SmtpPort = 587
mailman.StartTLS = True

#  Send the signed/encrypted EDI email
success = mailman.SendEmail(email)
if (success != True):
    print(mailman.LastErrorText)
else:
    print("Mail Sent!")