(Chilkat2-Python) Subject Alternative Name for ICP Brasil Certs

Demonstrates how to access the multiple names contained in the Subject Alternative Name of a certificate. This example is for an ICP Brasil certificate.

For more information, see http://oidref.com/2.16.76.1.3

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

import sys
import chilkat2

cert = chilkat2.Cert()

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

# If the cert's Subject Alternative Name contains multiple values, each specified by an OID,
# then the Rfc822Name property returns XML.
subjectAltNameXml = cert.Rfc822Name

print(subjectAltNameXml)

# Here's a sample of the subjectAltNameXml:

# <SubjectAltName>
#     <name type="oid" oid="2.16.76.1.3.4">290999653223955019700000000000000000000150424SRJUXPTS</name>
#     <name type="oid" oid="2.16.76.1.3.2">JOAO SILVA</name>
#     <name type="oid" oid="2.16.76.1.3.3">02408939000115</name>
#     <name type="oid" oid="2.16.76.1.3.7">000000000000</name>
# </SubjectAltName>

# The XML can be parsed like this:

xml = chilkat2.Xml()
xml.LoadXml(subjectAltNameXml)

i = 0
count_i = xml.NumChildrenHavingTag("name")
while i < count_i :
    xml.I = i
    oid = xml.ChilkatPath("name[i]|(oid)")
    name = xml.GetChildContent("name[i]")
    print(oid + ": " + name)
    i = i + 1