(PowerShell) 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 .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

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

# First generate an RSA private key.
$rsa = New-Object Chilkat.Rsa

# Generate a random 2048-bit RSA key.
$success = $rsa.GenerateKey(2048)
if ($success -ne $true) {
    $($rsa.LastErrorText)
    exit
}

# Get the private key
$privKey = $rsa.ExportPrivateKeyObj()

# Create the CSR object and set properties.
$csr = New-Object Chilkat.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 -ne $true) {
    $($csr.LastErrorText)

    exit
}

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

$fac = New-Object Chilkat.FileAccess
$fac.WriteEntireTextFile("qa_output/csr1.pem",$pemStr,"utf-8",$false)

# Show the CSR.
$($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-----