mcrypt

Trying to achieve encrypting and decryption using following strategy, but ending up with random characters mostly. class Crypt { public static function encrypt($string, $account) { // create a random initialization vector to use with CBC encoding $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC); $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); $key = pack('H*', $account . $account); $output = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $string, MCRYPT_MODE_CBC, $iv); $output = $iv . $output; $output = base64_encode($output); $output = urlencode($output); return $output; } public

I am using Mac OS X Lion 10.7.5 and I want to clear one thing I do not want to use XAMPP, MAMP anymore. So I enabled apache, php and installed mysql following this link . This work well. Then I downloaded laravel and installed it following this link . I copied laravel folder inside Sites folder which I created according to first link tutorial. Now when I click on public folder inside laravel folder it gives me following error Unhandled Exception Message: Call to undefined function Laravel\mcrypt_create_iv() Location: /Users/zafarsaleem/Sites/learning-laravel/laravel/crypter.php on line 36 Then

I am implementing AES-256 bit encrpytion in my web app: http://www.utoxin.name/2009/07/automatic-db-field-encryption-in-cakephp/ One of the steps says to store the cipher used and key in a boostrap file. But what is stopping someone from scanning the file system with PS or something and decrypting the data? What is the best way to secure the data? If someone has access to all files on the hard drive of your server, all bets are off. There is no way you can protect your data then, because your webapp still has to be able to access it. This encryption will only protect you from attackers who can

I have to following code and as far as I know it is correct, but it does not work. I am trying to encode data with PHP's Mcrpyt and then decode it with the openssl commandline tool. This is my PHP code: /* * Convert a normal ascii string to a hexadecimal string. * Complement of hexToString(). */ function stringToHex($str) { $hex_str = ""; for ($i = 0; $i < strlen($str); ++$i) { $hex_str .= sprintf("%02X", ord($str[$i])); } return $hex_str; } $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC), MCRYPT_DEV_RANDOM); $block_size = mcrypt_get_block_size("rijndael-128",

I can't for the life of me figure out how to migrate my legacy mcrypt code to OpenSSL. I got it working for Blowfish with CBC and for Rijndael with CBC, but Blowfish with ECB is eluding me. And yes, I read Moving from mcrypt with Blowfish & ECB to OpenSSL and I tried zero-padding the data, not zero-padding the data, zero-padding the key, cycling over the key and any combination of them and nothing seems to work. This is my code: <?php function encrypt_with_mcrypt($data, $key) { return mcrypt_encrypt(MCRYPT_BLOWFISH, $key, $data, MCRYPT_MODE_ECB); } function encrypt_with_openssl($data, $key) {

I'm using CentOS 6 and the latest phpMyAdmin (4.0.1.4) and I noticed the error "The mcrypt extension is missing. Please check your PHP configuration." I went ahead and ran: rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm then ran: yum install php-mycrypt Then restarted httpd services and still no luck. Any idea how I can get it to go away? According to this post , you should edit /etc/php.d/mcrypt.ini and change ; Enable mcrypt extension module extension=module.so to ; Enable mcrypt extension module extension=mcrypt.so and then restart. On Ubuntu Try this for