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(PHP ActiveX) 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.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

<?php

//  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.

$privKey = new COM("Chilkat_9_5_0.PrivateKey");

//  Load the private key from a file.
//  (Chilkat provides the ability to load private keys from many different
//  formats and sources..)
$success = $privKey->LoadEncryptedPemFile('qa_data/rsa/privKey1.pem','password');
if (!$success) {
    print $privKey->LastErrorText . "\n";
    exit;
}

//  Create the CSR object and set properties.
$csr = new COM("Chilkat_9_5_0.Csr");

//  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.
$csr->CommonName = 'mysubdomain.mydomain.com';

//  Country Name (2 letter code)
$csr->Country = 'GB';

//  State or Province Name (full name)
$csr->State = 'Yorks';

//  Locality Name (eg, city)
$csr->Locality = 'York';

//  Organization Name (eg, company)
$csr->Company = 'Internet Widgits Pty Ltd';

//  Organizational Unit Name (eg, secion/division)
$csr->CompanyDivision = 'IT';

//  Email address
$csr->EmailAddress = 'support@mydomain.com';

//  Create the CSR using the private key.
$pemStr = $csr->genCsrPem($privKey);
if ($csr->LastMethodSuccess != 1) {
    print $csr->LastErrorText . "\n";
    exit;
}

//  Save the CSR..
$fac = new COM("Chilkat_9_5_0.FileAccess");
$fac->WriteEntireTextFile('qa_output/csr1.pem',$pemStr,'utf-8',0);

//  Show the CSR.
print $pemStr . "\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
//  	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-----

?>

 

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