Chilkat2-Python

Generate CSR with Uncommon Fields

See more CSR Examples

Demonstrates how to generate a new RSA key and a Certificate Signing Request (CSR) for this:

csr.common.name=Admin forInformation-MainShop
csr.serial.number=1-XYZ|2-2.0|3-999695
csr.organization.identifier=990099994100099
csr.organization.unit.name=9999910000
csr.organization.name=9999910000
csr.country.name=SA
csr.invoice.type=1100
csr.location.address=King Fahed Road
csr.industry.business.category=MainOffice

Chilkat2-Python

import sys
import chilkat2

success = False

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

# First generate an RSA private key.
rsa = chilkat2.Rsa()

# Generate a random 2048-bit RSA key.
privKey = chilkat2.PrivateKey()
success = rsa.GenKey(2048,privKey)
if (success == False):
    print(rsa.LastErrorText)
    sys.exit()

# Create the CSR object and set properties.
csr = chilkat2.Csr()

csr.CommonName = "Admin forInformation-MainShop"

# Country Name (2 letter code)
csr.Country = "SA"

# Organization Name (eg, company)
csr.Company = "9999910000"

# Organizational Unit Name (eg, secion/division)
csr.CompanyDivision = "9999910000"

# See https://www.alvestrand.no/objectid/2.5.4.html for OIDs for the following fields:

# csr.serial.number=1-XYZ|2-2.0|3-999695
# 2.5.4.5 - id-at-serialNumber 
csr.SetSubjectField("2.5.4.5","1-XYZ|2-2.0|3-999695","UTF8String")

# csr.organization.identifier=990099994100099
# 2.5.4.45 - id-at-uniqueIdentifier   Don't know if this is correct.
csr.SetSubjectField("2.5.4.45","1100","UTF8String")

# csr.invoice.type=1100
# Don't know what this OID would be...
csr.SetSubjectField("2.5.4.99","1100","UTF8String")

# csr.location.address=King Fahed Road
# 2.5.4.9 - id-at-streetAddress 
csr.SetSubjectField("2.5.4.9","King Fahed Road","UTF8String")

# csr.industry.business.category=MainOffice
# 2.5.4.15 - id-at-businessCategory 
csr.SetSubjectField("2.5.4.15","MainOffice","UTF8String")

# Create the CSR using the private key.
pemStr = csr.GenCsrPem(privKey)
if (csr.LastMethodSuccess != True):
    print(csr.LastErrorText)
    sys.exit()

# Save the private key and CSR to a files.
privKey.SavePkcs8EncryptedPemFile("password","qa_output/privKey1.pem")

fac = chilkat2.FileAccess()
fac.WriteEntireTextFile("qa_output/csr1.pem",pemStr,"utf-8",False)

# Show the CSR.
print(pemStr)

# Sample output:
# The CSR PEM can be checked here:
# https://www.networking4all.com/en/support/tools/csr+check/
# Copy-and-paste the PEM into the online CSR Decoding / CSR Verification form

# 	-----BEGIN CERTIFICATE REQUEST-----
# 	MIIC6jCCAdICAQAwgaQxITAfBgNVBAMMGG15c3ViZG9tYWluLm15ZG9tYWluLmNv
# ...
# ...
# 	hJnYCvjzFz4O9VtT+JtP9ldRHWV3KpZ8ne3AjD+F
# 	-----END CERTIFICATE REQUEST-----