(Perl) 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

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

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

# First generate an RSA private key.
$rsa = chilkat::CkRsa->new();

# Generate a random 2048-bit RSA key.
$success = $rsa->GenerateKey(2048);
if ($success != 1) {
    print $rsa->lastErrorText() . "\r\n";
    exit;
}

# Get the private key
# privKey is a PrivateKey
$privKey = $rsa->ExportPrivateKeyObj();

# Create the CSR object and set properties.
$csr = chilkat::CkCsr->new();

$csr->put_CommonName("Admin forInformation-MainShop");

# Country Name (2 letter code)
$csr->put_Country("SA");

# Organization Name (eg, company)
$csr->put_Company("9999910000");

# Organizational Unit Name (eg, secion/division)
$csr->put_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->get_LastMethodSuccess() != 1) {
    print $csr->lastErrorText() . "\r\n";

    exit;
}

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

$fac = chilkat::CkFileAccess->new();
$fac->WriteEntireTextFile("qa_output/csr1.pem",$pemStr,"utf-8",0);

# Show the CSR.
print $pemStr . "\r\n";

# 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-----