----MESSAGE-BEGIN---- [9101072359.AA01068@ucbarpa.Berkeley.EDU] <1990121220374900>
From: gwyn@SMOKE.BRL.MIL (Doug Gwyn)
Newsgroups: misc.security
Subject: Re:  Same Key?
Message-ID: <9101072359.AA01068@ucbarpa.Berkeley.EDU>
Date: 12 Dec 90 20:37:49 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 10
Approved: security@rutgers.edu


Locks are usually installed near the end of construction.
Often there is a special "construction keying" used that is disabled
after construction is complete; this can involve an extra pin that
comes into effect once the regular key is used, or on large projects
using interchangeable cores, normally the cores are replaced with
the final set after construction is complete.

You should always hire a reputable locksmith to do lock work, not
simply buy locks at a hardware store and install them yourself.
The extra $$ that you pay buys improved workmanship and security.

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----MESSAGE-BEGIN---- [9101080016.AA01614@ucbarpa.Berkeley.EDU] <1990121316195300>
From: bixenman@scr1.ocpt.ccur.com (michael bixenman <bixenman@scr1.ocpt.ccur.com>)
Newsgroups: misc.security
Subject: Re:  Same Key?
Message-ID: <9101080016.AA01614@ucbarpa.Berkeley.EDU>
Date: 13 Dec 90 16:19:53 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 11
Approved: security@rutgers.edu


We moved into a house 18 years ago. It was two years old at the time. We 
had new neighbors after after two years had passed. One day the neighbor 
came over and stated he locked himself out. I got my tools and went to 
jimmy the front door. Just for a joke we tried my key ( all the door locks
were the same manufacturer ). It worked! We found his keys inside and 
noticed they were keyed alike. We checked with the surrounding ten homes 
and none were the same. I went out and purchased a new lockset that weekend
(different manufacturer!). That was coincidence or what !
This happened to me when I started driving also. It was 1966 and my '62
Chevy Impala keys opened a similar car at a shopping center, I sat in the 
car and realized it was not mine. Strange ...

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----MESSAGE-BEGIN---- [9001271953.AA15139@ucbarpa.Berkeley.EDU] <1990122705250900>
From: guhsd000@crash.cts.com (Paula Ferris)
Newsgroups: misc.security
Subject: Re: Market Survey for school
Message-ID: <9001271953.AA15139@ucbarpa.Berkeley.EDU>
Date: 27 Dec 90 05:25:09 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 12
Approved: security@rutgers.edu
Posted: Thu Dec 27 06:25:09 1990


Such items already exist...

The standard chirping keyring runs about $20-$40 dollars depending on where
you go to buy it.

CNN a few moths back showed an invention much like what your idea seems to be.
The keyring contains a small transmitter then when removed from your local
area, a reciver either vibrates or beeps as contact with the tagged item is
lost.  No idea on price or where to get it, the news being the way it is.

Just thought you might like to know incase you accidentially infringe on
someones patent(s), etc...

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