note 57431 added to function.gmp-xor

To be unbreakable XOR encryption must have a key that is totally random and is never re-used. If you use a key a second time, it can be broken. This can be confirmed by reading the page at http://en.wikipedia.org/wiki/One-time_pad. Although I am not an expert on cryptography, I understand that decyphering involves recognizing patterns and that it would be possible to decrypt code that was encoded using XOR with the same key if there were enough samples to examine. Maintaining unique keys for each encryption at both encryption and decryption points to ensure 100 percent unbreakability has security problems of its own - where and how are the keys stored and how are they transmitted to the decryption points? ---- Manual Page -- http://www.php.net/manual/en/function.gmp-xor.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+57431 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+57431&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+57431&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+57431&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+57431&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+57431&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+57431&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+57431&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+57431&report=yes Search -- http://master.php.net/manage/user-notes.php