Revision as of 23:08, 8 May 2008

Entry Automation

The system needs to be powered, and preferably include a UPS
Overriding key access is nice for graceful failure
- Of course, this just underlines the fact that this is an access registry system more than anything
Probably need a normal handle in the door with an electric door strike for the cheapest implementation.
If the implementation simply replaces the metal key with a token, it will have the same problems. Unless two- or three-factor authentication is used and/or the physical security of the lock and door are improved, it's about as secure as it was.

Hands-off access
Hands-off tracking of access
- As long as user has their RFID tag on them, their presence within a certain proximity around the reader will be recorded.

Need a reader with good range. Can be found for under $100
To build a system that can perform coming/going detection, would need two readers. or 1 + N readers, where N is the number of approachable directions
Need a writer. Under $100
- Some writers are substantially more expensive. Q: Why the price difference?
Need a server

Hands-on access
1 wire interface may be fakable with any interface that has the same signal levels (very cheap and easy buttonforging)
- prove it --strages 20:18, 8 May 2008 (CDT)
  - iButton Spoofing. I'm not promising to get around to this anytime soon, but I'll layout how to spoof the static key iButton here. Omegix 23:02, 8 May 2008 (CDT)
- It doesn't matter. Old keys are still eliminated from the system. And the threat of theft through kicking the door in is much higher than copying a valid key. --Korc 20:51, 8 May 2008 (CDT)
User may forget to log their entry to the area.
- If door is open, no incentive to use key
- Group of people walk in at once
- Someone knocks and has the door opened for them
- All these Cons are valid for any system --Korc 19:26, 8 May 2008 (CDT)
  - True, but not so much with RFID. With RFID as long as the person has their tag on them, simply walking within a few feet of the reader will activate it. Most people are used to RFID readers with short reading distances, ones with longer throws are found at storage units so that people don't have to get out of their cars. There's a cheap long throw reader on ebay that can do 40 meters. Of course, if people don't keep their RFID tag/card on their person, then that screws the pooch. Omegix 23:07, 8 May 2008 (CDT)

@@ Line 38: / Line 38: @@
 ** Someone knocks and has the door opened for them
 ** ''All these Cons are valid for any system'' --[[User:Korc|Korc]] 19:26, 8 May 2008 (CDT)
-*** True, but not so much with RFID.  With RFID as long as the person has their tag on them, simply walking within a few feed of the reader will activate it.  Most people are used to RFID readers with short reading distances, ones with longer throws are found at storage units so that people don't have to get out of their cars.  There's a cheap long throw reader on ebay that can do 40 meters.
+*** <i>True, but not so much with RFID.  With RFID as long as the person has their tag on them, simply walking within a few feet of the reader will activate it.  Most people are used to RFID readers with short reading distances, ones with longer throws are found at storage units so that people don't have to get out of their cars.  There's a cheap long throw reader on ebay that can do 40 meters.  Of course, if people don't keep their RFID tag/card on their person, then that screws the pooch. </i>[[User:Omegix|Omegix]] 23:07, 8 May 2008 (CDT)
-Of course, if people don't keep their RFID tag/card on their person, then that screws the pooch. [[User:Omegix|Omegix]] 23:07, 8 May 2008 (CDT)
 ==Induction==
 ===Pros===
 ===Cons===