Sample code for 30+ languages & platforms
Classic ASP

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 Classic ASP Downloads

Classic ASP
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

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

' First generate an RSA private key.
set rsa = Server.CreateObject("Chilkat.Rsa")

' Generate a random 2048-bit RSA key.
set privKey = Server.CreateObject("Chilkat.PrivateKey")
success = rsa.GenKey(2048,privKey)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( rsa.LastErrorText) & "</pre>"
    Response.End
End If

' Create the CSR object and set properties.
set csr = Server.CreateObject("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 
success = 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.
success = csr.SetSubjectField("2.5.4.45","1100","UTF8String")

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

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

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

' Create the CSR using the private key.
pemStr = csr.GenCsrPem(privKey)
If (csr.LastMethodSuccess <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( csr.LastErrorText) & "</pre>"
    Response.End
End If

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

set fac = Server.CreateObject("Chilkat.FileAccess")
success = fac.WriteEntireTextFile("qa_output/csr1.pem",pemStr,"utf-8",0)

' Show the CSR.
Response.Write "<pre>" & Server.HTMLEncode( pemStr) & "</pre>"

' 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-----

%>
</body>
</html>