CkPython Requires Chilkat v11.4.0+

Example: Mime.GetDecryptCertInfo method

Demonstrates the GetDecryptCertInfo method. CkPython

import sys
import chilkat

success = False

mime = chilkat.CkMime()

#  Load MIME that is has Content-Type like this:
#  Content-Type: application/pkcs7-mime; smime-type="enveloped-data"; name="smime.p7m"; smime-type="enveloped-data"
success = mime.LoadMimeFile("qa_data/mime/enveloped_data.eml")
if (success == False):
    print(mime.lastErrorText())
    sys.exit()

#  Get information about the certificate that would be needed to decrypt.
#  An enveloped-data can potentially be decrypted by multiple certificates if it was encrypted in a way that allows it,
#  but in most cases, only a single certificate with associated private key (that of the message recipient) is possible.
json = chilkat.CkJsonObject()
success = mime.GetDecryptCertInfo(json)
if (success == False):
    print(mime.lastErrorText())
    sys.exit()

json.put_EmitCompact(False)
print(json.emit())

#  Sample output:

#  {
#    "recipientInfo": [
#      {
#        "serial": "****",
#        "issuerCN": "****"
#      }
#    ]
#  }

#  Get each certificate's information like this:

i = 0
count = json.SizeOfArray("recipientInfo")
while i < count :
    json.put_I(i)
    serial = json.stringOf("recipientInfo[i].serial")
    issuerCN = json.stringOf("recipientInfo[i].issuerCN")
    i = i + 1