| public static encrypt ( string $plaintext, string $password, integer $cost, string $cipher = MCRYPT_RIJNDAEL_128, string $mode = MCRYPT_MODE_CBC, string $algo = 'sha256' ) : string | ||
| $plaintext | string | Plaintext string to encrypt |
| $password | string | Key used to encrypt data |
| $cost | integer | Number of HMAC iterations to perform on key |
| $cipher | string | Mcrypt cipher |
| $mode | string | Mcrypt mode |
| $algo | string | Hashing algorithm to use for internal operations |
| return | string | |
public static function encrypt($plaintext, $password, $cost = 0, $cipher = MCRYPT_RIJNDAEL_128, $mode = MCRYPT_MODE_CBC, $algo = 'sha256')
{
// Pad the input string to a multiple of block size
$padded = Pkcs7::pad($plaintext, \mcrypt_get_block_size($cipher, $mode));
// Generate IV of appropriate size
$iv = Random::bytes(\mcrypt_get_iv_size($cipher, $mode));
// Derive key from password
$key = self::key($password, $iv, $cost, $cipher, $mode, $algo);
// Encrypt the plaintext
$message = \mcrypt_encrypt($cipher, $key, $padded, $mode, $iv);
// Create the cypher text prefix (iv + checksum)
$prefix = $iv . self::checksum($message, $iv, $key, $cipher, $mode, $algo);
// Return prefix + cyphertext
return $prefix . $message;
} public function testEngine()
{
// If PHP 7.1, skip this test
if (self::mcryptDeprecated()) {
$this->assertTrue(true);
return;
}
$modes = self::mcryptModes();
$ciphers = self::mcryptCiphers();
foreach (hash_algos() as $algo) {
$input = 'AAAAAAAA';
$key = 'AAAAAAAA';
$cost = 0;
foreach ($modes as $mode) {
foreach ($ciphers as $cipher) {
$encrypted = Mcrypt::encrypt($input, $key, $cost, $cipher, $mode, $algo);
$this->assertEquals($input, Mcrypt::decrypt($encrypted, $key, $cost, $cipher, $mode, $algo));
}
}
}
}