CkPython Requires Chilkat v11.0.0+

DKIM Signature using Windows Current User Certificate Store

See more DKIM / DomainKey Examples

This is a Windows-specific example to load a certificate from the Current User (registry-based) certificate store, and then use the certificate's associated private key for a DKIM signature. CkPython

import sys
import chilkat

success = False

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

cert = chilkat.CkCert()

#  The LoadByCommonName method searches the Windows Local Machine and Current User 
#  registry-based certificate stores for a certificate having the common name specified. 
#  If found, the certificate is loaded and ready for use.
success = cert.LoadByCommonName("My Certificate ABC")
if (success == False):
    print(cert.lastErrorText())
    sys.exit()

#  The certificate must have an associated private key installed, and it must be a
#  private key that has been marked "exportable" when it was originally installed.
if (not cert.HasPrivateKey()):
    print("This certificate does not have a private key available.")
    sys.exit()

privKey = chilkat.CkPrivateKey()
success = cert.GetPrivateKey(privKey)
if (success == False):
    print(cert.lastErrorText())
    sys.exit()

dkim = chilkat.CkDkim()

#  Load the private key into the DKIM object:
success = dkim.SetDkimPrivateKey(privKey)
if (success == False):
    print(dkim.lastErrorText())
    sys.exit()

#  The private key has been loaded into the DKIM object.  See the other DKIM
#  examples for guidance on how to create a DKIM signature...