(Lianja) Generate CSR from Pre-Existing Private Key

Demonstrates how to generate a Certificate Signing Request (CSR) from a pre-existing RSA private key.

Note: This example requires Chilkat v9.5.0.65 or greater.

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// Note: Requires Chilkat v9.5.0.65 or greater.

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

loPrivKey = createobject("CkPrivateKey")

// Load the private key from a file.
// (Chilkat provides the ability to load private keys from many different
// formats and sources..)
llSuccess = loPrivKey.LoadEncryptedPemFile("qa_data/rsa/privKey1.pem","password")
if (not llSuccess) then
    ? loPrivKey.LastErrorText
    release loPrivKey
    return
endif

// Create the CSR object and set properties.
loCsr = createobject("CkCsr")

// Specify the Common Name.  This is the only required property.
// For SSL/TLS certificates, this would be the domain name. 
// For email certificates this would be the email address. 
loCsr.CommonName = "mysubdomain.mydomain.com"

// Country Name (2 letter code)
loCsr.Country = "GB"

// State or Province Name (full name)
loCsr.State = "Yorks"

// Locality Name (eg, city)
loCsr.Locality = "York"

// Organization Name (eg, company)
loCsr.Company = "Internet Widgits Pty Ltd"

// Organizational Unit Name (eg, secion/division)
loCsr.CompanyDivision = "IT"

// Email address
loCsr.EmailAddress = "support@mydomain.com"

// Create the CSR using the private key.
lcPemStr = loCsr.GenCsrPem(loPrivKey)
if (loCsr.LastMethodSuccess <> .T.) then
    ? loCsr.LastErrorText
    release loPrivKey
    release loCsr
    return
endif

// Save the CSR..
loFac = createobject("CkFileAccess")
loFac.WriteEntireTextFile("qa_output/csr1.pem",lcPemStr,"utf-8",.F.)

// Show the CSR.
? lcPemStr

// 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
// 	bTELMAkGA1UEBhMCR0IxDjAMBgNVBAgMBVlvcmtzMQ0wCwYDVQQHDARZb3JrMSEw
// 	HwYDVQQKDBhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQxCzAJBgNVBAsMAklUMSMw
// 	IQYJKoZIhvcNAQkBFhRzdXBwb3J0QG15ZG9tYWluLmNvbTCCASIwDQYJKoZIhvcN
// 	AQEBBQADggEPADCCAQoCggEBALnQ0un/wF8whk+gPuiAlf3qvx14jgAOV6Erm6EB
// 	H7WACPCpnKcm/8KP+7uoPiwRQaENhMeCgf45vcivl2p6aAn/spLXyEkXyw2d8wFb
// 	YYAGRkiz4Xf7ASJiKuwcOtORz+sSDzgtdfokHfXU1cYeFE2yQhSdLUY5fMn425+g
// 	KoEEsRSjSDe6AKru4+4iGNrLKd8pB9IA5/jOE139IkWlB9r5fEPD5bUTsgqXk9eb
// 	68O0gc712V2eZK07N24lDmFC4bIMTD4csDWocR5hFHXj7NX7c8sOBDcpEb9mPIk4
// 	elxubnhkfnjhOi4J3lDHcT/0ALnbLhf9LnaiKqs+5VcVZvECAwEAAaAAMA0GCSqG
// 	SIb3DQEBBQUAA4IBAQC0AETLIcP3foh5nbu2hVFS8uCUNZ5hEIR1eXmYZmZoBQq2
// 	26ZAoT4CZwixlggC+n7WvAXJ5Pzxpl4wLV4loTiQzaKPX1w0ERo5ZRwLy0n56oG2
// 	6QG+WTViT1C8rlgtVwkCFNOXr0kSSRs8FdaPllqKxK1hxYSL7zwNpumsk39F2cDt
// 	vhcekvH0V3BuGrQFm3dKN/0azW6GOod9+Vq4VzSyOe3kp15oxLBsZOFOu/REujcw
// 	Tzu2jt1asQKUm60CZ9wNHpYepR0Ww40uP1slbehEaFDa6V8b60/tlHHmBbJ4/fy5
// 	hJnYCvjzFz4O9VtT+JtP9ldRHWV3KpZ8ne3AjD+F
// 	-----END CERTIFICATE REQUEST-----


release loPrivKey
release loCsr
release loFac