note 19722 added to function.openssl-private-encrypt

From: Date: Fri, 08 Mar 2002 20:50:14 +0000
Subject: note 19722 added to function.openssl-private-encrypt
Groups: php.notes 
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Encrypt using private key, decrypt using public key. Use this for posting signed messages: Anyone with access to your public key can read it, but they can't create one with your signature. <?php echo "Source: $source"; $fp=fopen("/path/to/private.key","r"); $priv_key=fread($fp,8192); fclose($fp); // $passphrase is required if your key is encoded (suggested) $res = openssl_get_privatekey($priv_key,$passphrase); /* * NOTE: Here you use the returned resource value */ openssl_private_encrypt($source,$finaltext,$res); echo "String crypted: $crypttext"; $fp=fopen ("/path/to/certificate.crt","r"); $pub_key=fread($fp,8192); fclose($fp); openssl_get_publickey($pub_key); /* * NOTE: Here you use the $pub_key value (converted, I guess) */ openssl_public_decrypt($crypttext,$newsource,$pub_key); echo "String decrypt : $newsource"; ?> -- http://www.php.net/manual/en/function.openssl-private-encrypt.php http://master.php.net/manage/user-notes.php?action=edit+19722 http://master.php.net/manage/user-notes.php?action=delete+19722 http://master.php.net/manage/user-notes.php?action=reject+19722

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