openssl函数在https下无法使用

<?php#ssl-encry.php$source = "This is encry-content.";echo "1.Source: $source";$fp=fopen("/path/to/certificate.crt","r");$pub_key=fread($fp,8192);fclose($fp);openssl_get_publickey($pub_key);openssl_public_encrypt($source,$crypttext,$pub_key);echo "2.String crypted: $crypttext";$fp=fopen("/path/to/private.key","r");$priv_key=fread($fp,8192);fclose($fp);// $passphrase is required if your key is encoded (suggested)$passphrase = '';$res = openssl_get_privatekey($priv_key,$passphrase);openssl_private_decrypt($crypttext,$newsource,$res);echo "3.String decrypt : $newsource";?>