Lua Requires Chilkat v11.0.0+
Lua
Generate a CSR containing an Extension Request
See more CSR Examples
Demonstrates how to generate a CSR containing a 1.2.840.113549.1.9.14 extensionRequest.Chilkat Lua Downloads
local chilkat = require("chilkat")
-- This requires the Chilkat API to have been previously unlocked.
-- See Global Unlock Sample for sample code.
-- This example will generate a secp256r1 ECDSA key for the CSR.
local ecc = chilkat.Ecc.new()
local prng = chilkat.Prng.new()
local privKey = chilkat.PrivateKey.new()
local success = ecc:gen_key("secp256r1", prng, privKey)
if not success then
print("Failed to generate a new ECDSA private key.")
return
end
local csr = chilkat.Csr.new()
-- Add common CSR fields:
csr.common_name = "mysubdomain.mydomain.com"
csr.country = "GB"
csr.state = "Yorks"
csr.locality = "York"
csr.company = "Internet Widgits Pty Ltd"
csr.email_address = "support@mydomain.com"
-- Add the following 1.2.840.113549.1.9.14 extensionRequest
-- Note: The easiest way to know the content and format of the XML to be added is to examine
-- a pre-existing CSR with the same desired extensionRequest. You can use Chilkat to
-- get the extensionRequest from an existing CSR.
-- Here is a sample extension request:
-- <?xml version="1.0" encoding="utf-8"?>
-- <set>
-- <sequence>
-- <sequence>
-- <oid>1.3.6.1.4.1.311.20.2</oid>
-- <asnOctets>
-- <printable>ZATCA-Code-Signing</printable>
-- </asnOctets>
-- </sequence>
-- <sequence>
-- <oid>2.5.29.17</oid>
-- <asnOctets>
-- <sequence>
-- <contextSpecific tag="4" constructed="1">
-- <sequence>
-- <set>
-- <sequence>
-- <oid>2.5.4.4</oid>
-- <utf8>334623324234325</utf8>
-- </sequence>
-- </set>
-- <set>
-- <sequence>
-- <oid>0.9.2342.19200300.100.1.1</oid>
-- <utf8>310122393500003</utf8>
-- </sequence>
-- </set>
-- <set>
-- <sequence>
-- <oid>2.5.4.12</oid>
-- <utf8>0000</utf8>
-- </sequence>
-- </set>
-- <set>
-- <sequence>
-- <oid>2.5.4.26</oid>
-- <utf8>Sample E</utf8>
-- </sequence>
-- </set>
-- <set>
-- <sequence>
-- <oid>2.5.4.15</oid>
-- <utf8>Sample Business</utf8>
-- </sequence>
-- </set>
-- </sequence>
-- </contextSpecific>
-- </sequence>
-- </asnOctets>
-- </sequence>
-- </sequence>
-- </set>
-- Use this online tool to generate code from sample XML:
-- Generate Code to Create XML
-- Here's the code to generate the above extension request.
local xml = chilkat.Xml.new()
xml.tag = "set"
xml:update_child_content("sequence|sequence|oid", "1.3.6.1.4.1.311.20.2")
xml:update_child_content("sequence|sequence|asnOctets|printable", "ZATCA-Code-Signing")
xml:update_child_content("sequence|sequence[1]|oid", "2.5.29.17")
xml:update_attr_at("sequence|sequence[1]|asnOctets|sequence|contextSpecific", true, "tag", "4")
xml:update_attr_at("sequence|sequence[1]|asnOctets|sequence|contextSpecific", true, "constructed", "1")
xml:update_child_content("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set|sequence|oid", "2.5.4.4")
xml:update_child_content("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set|sequence|utf8", "334623324234325")
xml:update_child_content("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[1]|sequence|oid", "0.9.2342.19200300.100.1.1")
xml:update_child_content("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[1]|sequence|utf8", "310122393500003")
xml:update_child_content("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[2]|sequence|oid", "2.5.4.12")
xml:update_child_content("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[2]|sequence|utf8", "0000")
xml:update_child_content("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[3]|sequence|oid", "2.5.4.26")
xml:update_child_content("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[3]|sequence|utf8", "Sample E")
xml:update_child_content("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[4]|sequence|oid", "2.5.4.15")
xml:update_child_content("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[4]|sequence|utf8", "Sample Business")
-- Add the extension request to the CSR
csr:set_extension_request(xml)
-- Generate the CSR with the extension request
local csrPem = csr:gen_csr_pem(privKey)
if not csr.last_method_success then
print(csr.last_error_text)
return
end
print(csrPem)
-- Sample PEM output:
-- -----BEGIN CERTIFICATE REQUEST-----
-- MIICEjCCAbkCAQAwgZcxITAfBgNVBAMMGG15c3ViZG9tYWluLm15ZG9tYWluLmNv
-- bTELMAkGA1UEBhMCR0IxDjAMBgNVBAgMBVlvcmtzMQ0wCwYDVQQHDARZb3JrMSEw
-- HwYDVQQKDBhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQxIzAhBgkqhkiG9w0BCQEW
-- FHN1cHBvcnRAbXlkb21haW4uY29tMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE
-- g8EVNSV0ttlM9kG2E+J3ZB9WEDYVf2QA/8idrPRUafia1CHjd1kslwZA8eP2bAcf
-- 2O493QAENqtW6DTHJbRz8KCBvjCBuwYJKoZIhvcNAQkOMYGtMIGqMCEGCSsGAQQB
-- gjcUAgQUExJaQVRDQS1Db2RlLVNpZ25pbmcwgYQGA1UdEQR9MHukeTB3MRgwFgYD
-- VQQEDA8zMzQ2MjMzMjQyMzQzMjUxHzAdBgoJkiaJk/IsZAEBDA8zMTAxMjIzOTM1
-- MDAwMDMxDTALBgNVBAwMBDAwMDAxETAPBgNVBBoMCFNhbXBsZSBFMRgwFgYDVQQP
-- DA9TYW1wbGUgQnVzaW5lc3MwCgYIKoZIzj0EAwIDRwAwRAIgF7D30eSBklfo+oel
-- 1B0z64eJDB9MB3rCoiFZlj+mz0YCIHYI87eyqdtw2LOcAoBRhyxlBT6i28+Z/8t9
-- bYsMIYvp
-- -----END CERTIFICATE REQUEST-----