(Chilkat2-Python) Load Base64-encoded X.509 Certificate (.cer)

Loads a digital certificate from a base64 encoded DER X.509 Certificate (.cer, .crt) and fetches information about the cert.

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

import sys
import chilkat2

cert = chilkat2.Cert()

# LoadFromFile will load virtually any certificate format file.
# It will auto-recognize the format and load appropiately.
# A base64-encoded DER X.509 certificate file
# contains the binary DER in base64 encoded form.
# Therefore, it is a text file that will begin like this:
# -----BEGIN CERTIFICATE-----
# MIIFbjCCBFagAwIBAgIGdDPNv/L0MA0GCSqGSIb3DQEBBQUAMIHKMQswCQYDVQQG
# EwJVUzEQMA4GA1UECBMHQXJpem9uYTETMBEGA1UEBxMKU2NvdHRzZGFsZTEaMBgG
# ...

success = cert.LoadFromFile("/Users/chilkat/testData/cer/chilkat_base64.cer")
if (success != True):
    print(cert.LastErrorText)
    sys.exit()

# DN = "Distinguished Name"
print("SubjectDN:" + cert.SubjectDN)

print("Common Name:" + cert.SubjectCN)
print("Issuer Common Name:" + cert.IssuerCN)

print("Serial Number:" + cert.SerialNumber)