protected function UbercartEncryption::checkRange in Ubercart 7.3

Checks that $num points to an entry in self::$scramble1.

2 calls to UbercartEncryption::checkRange()

UbercartEncryption::decrypt in uc_store/classes/encrypt.inc

Decrypts cyphertext.

UbercartEncryption::encrypt in uc_store/classes/encrypt.inc

Encrypts plaintext.

File

uc_store/classes/encrypt.inc, line 220

Utility class definition.

Class

UbercartEncryption

Handles encryption of credit-card information.

Code

protected function checkRange($num) {
  $num = round($num);
  $limit = strlen(self::$scramble1);
  while ($num >= $limit) {
    $num = $num - $limit;
  }
  while ($num < 0) {
    $num = $num + $limit;
  }
  return $num;
}