(PowerBuilder) Generate a CSR containing an Extension Request

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Demonstrates how to generate a CSR containing a 1.2.840.113549.1.9.14 extensionRequest.

Note: This example requires Chilkat v9.5.0.91 or greater.

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integer li_rc
oleobject loo_Ecc
oleobject loo_Prng
oleobject loo_PrivKey
oleobject loo_Csr
oleobject loo_Xml
string ls_CsrPem

// 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.
loo_Ecc = create oleobject
// Use "Chilkat_9_5_0.Ecc" for versions of Chilkat < 10.0.0
li_rc = loo_Ecc.ConnectToNewObject("Chilkat.Ecc")
if li_rc < 0 then
    destroy loo_Ecc
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_Prng = create oleobject
// Use "Chilkat_9_5_0.Prng" for versions of Chilkat < 10.0.0
li_rc = loo_Prng.ConnectToNewObject("Chilkat.Prng")

loo_PrivKey = loo_Ecc.GenEccKey("secp256r1",loo_Prng)
if loo_Ecc.LastMethodSuccess = 0 then
    Write-Debug "Failed to generate a new ECDSA private key."
    destroy loo_Ecc
    destroy loo_Prng
    return
end if

loo_Csr = create oleobject
// Use "Chilkat_9_5_0.Csr" for versions of Chilkat < 10.0.0
li_rc = loo_Csr.ConnectToNewObject("Chilkat.Csr")

// Add common CSR fields:
loo_Csr.CommonName = "mysubdomain.mydomain.com"
loo_Csr.Country = "GB"
loo_Csr.State = "Yorks"
loo_Csr.Locality = "York"
loo_Csr.Company = "Internet Widgits Pty Ltd"
loo_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.

loo_Xml = create oleobject
// Use "Chilkat_9_5_0.Xml" for versions of Chilkat < 10.0.0
li_rc = loo_Xml.ConnectToNewObject("Chilkat.Xml")

loo_Xml.Tag = "set"
loo_Xml.UpdateChildContent("sequence|sequence|oid","1.3.6.1.4.1.311.20.2")
loo_Xml.UpdateChildContent("sequence|sequence|asnOctets|printable","ZATCA-Code-Signing")
loo_Xml.UpdateChildContent("sequence|sequence[1]|oid","2.5.29.17")
loo_Xml.UpdateAttrAt("sequence|sequence[1]|asnOctets|sequence|contextSpecific",1,"tag","4")
loo_Xml.UpdateAttrAt("sequence|sequence[1]|asnOctets|sequence|contextSpecific",1,"constructed","1")
loo_Xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set|sequence|oid","2.5.4.4")
loo_Xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set|sequence|utf8","334623324234325")
loo_Xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[1]|sequence|oid","0.9.2342.19200300.100.1.1")
loo_Xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[1]|sequence|utf8","310122393500003")
loo_Xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[2]|sequence|oid","2.5.4.12")
loo_Xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[2]|sequence|utf8","0000")
loo_Xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[3]|sequence|oid","2.5.4.26")
loo_Xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[3]|sequence|utf8","Sample E")
loo_Xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[4]|sequence|oid","2.5.4.15")
loo_Xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[4]|sequence|utf8","Sample Business")

// Add the extension request to the CSR
loo_Csr.SetExtensionRequest(loo_Xml)

// Generate the CSR with the extension request
ls_CsrPem = loo_Csr.GenCsrPem(loo_PrivKey)
if loo_Csr.LastMethodSuccess = 0 then
    Write-Debug loo_Csr.LastErrorText
    destroy loo_PrivKey
    destroy loo_Ecc
    destroy loo_Prng
    destroy loo_Csr
    destroy loo_Xml
    return
end if

Write-Debug ls_CsrPem

destroy loo_PrivKey

// 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-----


destroy loo_Ecc
destroy loo_Prng
destroy loo_Csr
destroy loo_Xml