Feature
1: Since the relation
between a key and a lock is an optical-communications system,
it becomes the lock without a keyhole.
2: Its personal identification
number can be created using a cellular phone (to 10 figures).
Operation is easy and can be created in less than 1 minute.
Change is also possible at less than 1 minute.
10 billion kinds of personal identification numbers can be chosen.
3: The delay time of several
seconds is prepared in collation of a personal identification
number.
Therefore, even if it carries out with which supercomputer, it
will become such a thing for a decipherment 300 years.
4: Since it is an electronic
lock, remote control can be built easily.
5: The lock of many places,
such as a house, a company, and a car, can open and close with
one key with one key.
6: A master key, a grand
master key, etc. can be created easily.
In addition, there are many functions which are not in the conventional
key.
7: Attachment is also
more simple compared with the case of the conventional key.
8: Even when a key is
lost, only change of a personal identification number is required.
Therefore, since exchange of a lock is unnecessary, it does not
require expense, either.
It can be called an ideal key. |