使用Mcrypt加密/解密文件嘗試編寫一些將加密或解密文件的函數(shù)，并使用此處的類來嘗試完成此任務：http://www.itnewb.com/v/PHP-Encryption-Decryption-Using-the-MCrypt-Library-libmcrypt下面的加密函數(shù)似乎有效，因為它似乎加密文件并將其放在目標目錄中。我現(xiàn)在正試圖解密該文件，它只是死于“無法完成解密”的消息（在那里編碼...）在php錯誤日志中沒有任何內容，所以我不確定它為什么會失敗，但由于mcrypt對我來說是全新的，我更傾向于相信我在這里做錯了...以下是功能：//ENCRYPT FILE
function encryptFile() {
global $cryptastic;
$pass = PGPPASS;
$salt = PGPSALT;
$key = $cryptastic->pbkdf2($pass, $salt, 1000, 32) or die("Failed to generate secret key.");
if ($handle = opendir(PATH.'/ftpd')) {
while (false !== ($file = readdir($handle))) {
if ($file != "." && $file != "..") {
$newfile = PATH.'/encrypted/'.$file.'.txt';
$msg = file_get_contents(PATH.'/ftpd/'.$file);
$encrypted = $cryptastic->encrypt($msg, $key) or die("Failed to complete encryption.");
$nfile = fopen($newfile, 'w');
fwrite($nfile, $encrypted);
fclose($nfile);
unlink(PATH.'/ftpd/'.$file);
}
}
closedir($handle);
} //DECRYPT FILE
function inFTP() {
global $cryptastic;
$pass = PGPPASS;
$salt = PGPSALT;
$key = $cryptastic->pbkdf2($pass, $salt, 1000, 32) or die("Failed to generate secret key.");
if ($handle = opendir(PATH.'/encrypted')) {
while (false !== ($file = readdir($handle))) {
if ($file != "." && $file != "..") {
$newfile = PATH.'/decrypted/'.$file;
$msg = PATH.'/encrypted/'.$file;
$decrypted = $cryptastic->decrypt($msg, $key) or die("Failed to complete decryption.");
$nfile = fopen($newfile, 'w');
fwrite($nfile, $decrypted);
fclose($nfile);
//unlink(PATH.'/encrypted/'.$file);
}
}
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