Perl Requires Chilkat v11.0.0+
Chilkat2 Perl
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 Perl Downloads
use strict;
use warnings;
use Chilkat2;
# 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.
my $ecc = Chilkat2::Ecc->new;
my $prng = Chilkat2::Prng->new;
my $privKey = Chilkat2::PrivateKey->new;
my $success = $ecc->GenKey('secp256r1', $prng, $privKey);
if (!$success) {
print "Failed to generate a new ECDSA private key.\n";
exit;
}
my $csr = Chilkat2::Csr->new;
# Add common CSR fields:
$csr->CommonName('mysubdomain.mydomain.com');
$csr->Country('GB');
$csr->State('Yorks');
$csr->Locality('York');
$csr->Company('Internet Widgits Pty Ltd');
$csr->EmailAddress('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.
my $xml = Chilkat2::Xml->new;
$xml->Tag('set');
$xml->UpdateChildContent('sequence|sequence|oid', '1.3.6.1.4.1.311.20.2');
$xml->UpdateChildContent('sequence|sequence|asnOctets|printable', 'ZATCA-Code-Signing');
$xml->UpdateChildContent('sequence|sequence[1]|oid', '2.5.29.17');
$xml->UpdateAttrAt('sequence|sequence[1]|asnOctets|sequence|contextSpecific', 1, 'tag', '4');
$xml->UpdateAttrAt('sequence|sequence[1]|asnOctets|sequence|contextSpecific', 1, 'constructed', '1');
$xml->UpdateChildContent('sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set|sequence|oid', '2.5.4.4');
$xml->UpdateChildContent('sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set|sequence|utf8', '334623324234325');
$xml->UpdateChildContent('sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[1]|sequence|oid', '0.9.2342.19200300.100.1.1');
$xml->UpdateChildContent('sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[1]|sequence|utf8', '310122393500003');
$xml->UpdateChildContent('sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[2]|sequence|oid', '2.5.4.12');
$xml->UpdateChildContent('sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[2]|sequence|utf8', '0000');
$xml->UpdateChildContent('sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[3]|sequence|oid', '2.5.4.26');
$xml->UpdateChildContent('sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[3]|sequence|utf8', 'Sample E');
$xml->UpdateChildContent('sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[4]|sequence|oid', '2.5.4.15');
$xml->UpdateChildContent('sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[4]|sequence|utf8', 'Sample Business');
# Add the extension request to the CSR
$csr->SetExtensionRequest($xml);
# Generate the CSR with the extension request
my $csrPem = $csr->GenCsrPem($privKey);
if (!$csr->LastMethodSuccess) {
print $csr->LastErrorText, "\n";
exit;
}
print $csrPem, "\n";
# 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-----