[TYPO3-caretaker] Trouble creating a caretaker instance

Michiel Roos [netcreators] michiel at netcreators.com
Tue Dec 15 15:52:17 CET 2009

Op 12/14/09 4:38 PM, Francois Suter schreef:
> Hi all,
> I'm trying to install caretaker_instance for a new machine to monitor. I
> took the latest version from the SVN repository (rev 27682). But I got
> the following warning and no public/private key pair was generated:
> [14-Dec-2009 15:29:30] PHP Warning:  openssl_pkey_export() [<a
> href='function.openssl-pkey-export'>function.openssl-pkey-export</a>]:
> cannot get key from parameter 1 in
> /home/fim/public_html/typo3conf/ext/caretaker_instance/classes/class.tx_caretakerinstance_OpenSSLCryptoManager.php
> on line 96
> [14-Dec-2009 15:29:30] PHP Warning:  openssl_pkey_get_details() expects
> parameter 1 to be resource, boolean given in
> /home/fim/public_html/typo3conf/ext/caretaker_instance/classes/class.tx_caretakerinstance_OpenSSLCryptoManager.php
> on line 98

Hi Francois,

I have the exact same problem on multiple hosts. Some hosting providers
have a broken PHP install.

I created a bug about it here (it's realy not a bug in caretaker):


I use the following solution on a server that does have a proper PHP.
Whenever I need a key-pair, I call the following script frome somewhere
on the 'sane PHP' server:



    $keyPair = openssl_pkey_new();

    openssl_pkey_export($keyPair, $privateKey);

    $publicKey = openssl_pkey_get_details($keyPair);
    $publicKey = $publicKey['key'];

    $publicKey = str_replace("\n", '|', $publicKey);
    $privateKey = str_replace("\n", '|', $privateKey);


	<script type="text/javascript">
		function SelectAll(id)

		<form name="blip">
			Public: <input id="pub" onclick="SelectAll('pub');" name="pub"
value="<?php echo $publicKey ?>" size="150" /><br/>
			Private: <input id="priv" onclick="SelectAll('priv');" name="priv"
value="<?php echo $privateKey ?>" size="150" /><br/>


Met vriendelijke groet / Warm regards,

Michiel Roos
TYPO3 Developer
Certified TYPO3 Integrator

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