[PHP] openssl - extracting public key

[Tony Carter]

Hello,
I'm trying to use the openssl function and seem to be having a problem 
extracting the public key from the keypair generated by 
openssl_pkey_new.  Is there a function to do this in PHP?

Here is the sample code.

<?php

$pubkey = "";
$privkey = "";
$keypair = "";
$privkeyout ="";
$pubkeyout = "";
// Generate a new private (and public) key pair
$keypair = openssl_pkey_new();
//openssl_get_publickey expects a  mixed certificate parameter

// begin problem area
$pubkey =  openssl_get_publickey($keypair);
//end problem area
//openssl_get_publickey expects a  mixed key
$privkey = openssl_get_privatekey($keypair);
openssl_pkey_export($privkey, $privkeyout);
openssl_pkey_export($pubkey, $pubkeyout);
echo "Private Key<br>";
 var_dump($privkeyout);
echo "<br>Public Key<br>";
 var_dump($pubkeyout);
openssl_free_key($keypair);
?>
Thanks,
Tony
 

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