(PHP ActiveX) Generate RSA Key and Export to Encrypted PEM
PHP ActiveX sample showing how to generate an RSA key and export to encrypted PEM.
<?php
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
$rsa = new COM("Chilkat_9_5_0.Rsa");
// Generate a 1024-bit key. Chilkat RSA supports
// key sizes ranging from 512 bits to 4096 bits.
$success = $rsa->GenerateKey(1024);
if ($success != 1) {
print $rsa->LastErrorText . "\n";
exit;
}
// Get the private key as unencrypted XML:
$keyXml = $rsa->exportPrivateKey();
print $keyXml . "\n";
// To encrypt the key -- meaning to get the key in
// an encrypted PEM format -- load it into a PrivateKey object,
// and then export to encrypted PEM:
$privKey = new COM("Chilkat_9_5_0.PrivateKey");
$success = $privKey->LoadXml($keyXml);
if ($success != 1) {
print $privKey->LastErrorText . "\n";
exit;
}
$strEncPem = $privKey->getPkcs8EncryptedPem('myPassword');
// You now have the private key in an encrypted format,
// which may be (for example) saved to a database
?>
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