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Filename : OpensslPrivateKeyGeneratorTrait.php

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<?php

/*
 * This file is part of the Acme PHP project.
 *
 * (c) Titouan Galopin <galopintitouan@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PleskSslIt\AcmePhp\Ssl\Generator;

use PleskSslIt\AcmePhp\Ssl\Exception\KeyGenerationException;
use PleskSslIt\AcmePhp\Ssl\Exception\KeyPairGenerationException;
use PleskSslIt\AcmePhp\Ssl\PrivateKey;
trait OpensslPrivateKeyGeneratorTrait
{
    private function generatePrivateKeyFromOpensslOptions(array $opensslOptions)
    {
        $resource = \openssl_pkey_new($opensslOptions);
        if (!$resource) {
            throw new KeyGenerationException(\sprintf('OpenSSL key creation failed during generation with error: %s', \openssl_error_string()));
        }
        if (!\openssl_pkey_export($resource, $privateKey)) {
            throw new KeyPairGenerationException(\sprintf('OpenSSL key export failed during generation with error: %s', \openssl_error_string()));
        }
        // PHP 8 automatically frees the key instance and deprecates the function
        if (\PHP_VERSION_ID < 80000) {
            \openssl_free_key($resource);
        }
        return new PrivateKey($privateKey);
    }
}