(CkPython) Get Text Certificate Extensions by OID

See more Certificates Examples

Most certificate extensions have values that are ASN.1 (binary). For the majority of cases, an application should call GetExtensionAsXml. For extensions known to have text values (such as the OIDs listed above), an application can instead call GetExtensionAsText.

The GetExtensionAsText method is added in Chilkat v9.5.0.89.

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

import sys
import chilkat

cert = chilkat.CkCert()

success = cert.LoadFromFile("qa_data/certs/PUH9.cer")
if (success == False):
    print(cert.lastErrorText())
    sys.exit()

oid = "1.3.6.1.4.1.49952.5.8.5"
str = cert.getExtensionAsText(oid)
if (cert.get_LastMethodSuccess() == True):
    print(oid + ": " + str)

oid = "1.3.6.1.4.1.49952.5.8.6"
str = cert.getExtensionAsText(oid)
if (cert.get_LastMethodSuccess() == True):
    print(oid + ": " + str)

oid = "1.3.6.1.4.1.49952.5.8.7"
str = cert.getExtensionAsText(oid)
if (cert.get_LastMethodSuccess() == True):
    print(oid + ": " + str)