Hotel Access Control Explained

Author: Brian Rhodes, Published on Aug 17, 2016

Hotel access control seems to work magically. Unlike electronic access control systems used in commercial security, doors in hotels are not typically connected to a central server to confirm access.

*** **** ** **** ****? *** *** *** ***** ****** that ***** *** **** ********? ****** **** ****, ** *****:

  • ******* ********* *** ******
  • ******* ******** **********
  • ***** **** **** *****
  • *** ***** ***** *** *****
  • ********** ******* ********** ******
  • ********** ** ***** ****** *******
  • ********** ** ********** *******
  • ***** ****** ******** ********

Keycard ********

** *** *********** ********, '*** ****' ******* *** ********* ******** using ***** *** ****** **********. * '******' ** ******** ** individual, ***-********* **** ******/*****, * **** **********, *** ******* ****** cards. *** ******* ********** ***********, ******* ** *** ***** ****, encodes * ******* **** ****** ****** ****.

***** ******* ****** ***:

  • ********: * ****** **** ** ******** *** ******* ** * 'guest ****', '****** ***', '************ ****', ** ***** **** ** role. '***** *****' ********* **** *** ****, ***** * '****** Key' **** *** **** **** ***.
  • ***** ****/****: *** **** ****** * **** ** **** ** **** a ****. **** *** **** ******* * '***** ****' ** calibrate ******* **** ****** ****.
  • **** ******: * ****** ** ***** ******** ** *** ****/**** *** card *****.  **** ********* ****** ******* ** *** **** *** guest ****.
  • ******** ******: * ****** **** **** ********** *** ********** ********/*****/**** * card ** ******* ***.  **** ******** ***** *** **** *** 'Room ***' ** ******** **********.

*** **** **** ****** ** *** **** ****** ** ********* when ** ****** ******, ** *** ****** ****** ** *********** not ********* *** **** **** ** '*******' *** ***** ** access ******** **** **** * **** ** *********.  

Keycard ******

******** **** ** ***** *** ***** ******* ** **** ******** sense.  ****** ***** **** ****, ******** **** ** ********** ** cheap ****** ** ******* ***** * ****** ***.

*** **** ****** ***** *** **** **** ***** **** **** ****** $0.20 - *.** *** ****. **** ******** **** ******** *.***" * *.***", *** **** size ** * ****** ****, *** *** ********* **** ** inexpensive *** *******.  ** **** *****, *** **** ** ***** cards *** ******* ********** ** ************* ***** ** ********* ********* programs, ***** ***********, ** *********** ****** * *****:

Magstripe Encoded *****

* *** ***** ** ***** ***********: *** **** ******* ** these ***** *** * '******' ********** ************* ****** ******** ** **** ********* ***** ** *********** **** *********** **********.

***** **** *** ****** ** *** ******** '***************' ** ***** cards ** ********* ** **** **** ******** *******, **** ********* is ***** ********* ** * ******** *********** ** *** **** of '***** ******* ****' ** *** ****** **********. *** ******** card ******** ****** ******** *** ***** ******* ** ******** ***** a ***** ****, ***** * *** ****.

 
 
Door **** *****
 

***** *** ***** ** **** ******** *** **** ******* ********* on ****** *** ******, '*****' ***** *** ** ********* *** less **** $*** ***. **** ******* ****** **** ** '****** hotel' ****** **** *** **** **** $** ***. ** ********, enterprise-grade ********** ********** ****** ******* ******* ***** **** ******* ** $1000 *** ****.

** *******, **** ***** *** ******** ** *** **** *** most ******* **** ***** ***** *********** ** ******* *******. ****** other ***** ** ********** ****** *******, *********** ******* **** **** with * ******** **** ** **** *** ****** ** ******* to ******** *****.

Hotel ******** *** *****

*** ******* ****** ********** ** ********* ******* '***********' *** ********** EAC ******* ** *** **** ** *** **********. 

** * *********** ******, *** **** **** ****** ** ******* command ** **** *** ****. * *********** **** **** *** no ********* ************* ** *** ***** * ********** *** **, it **** ***** **** *** **** ***** ********* '***** **' to ****. *** ********** ******** ******** *** ********* *** **** needed ** ******** *** ****.  

** ********, ** ********** *** ****** **** **** *** ********** to ******** * ******* *** ******. *** ********** ****** **** not ***** * ******* ** **** *** ****, ** ****** identifies *** ****** ******* ** '********' ******* *** *****. *** networked ******** ** *** ****** ****** **** * ******* ********, and **** ******** ******** ** ****** ***** ***** ** **** database. ******* *** **** ****** ** *********, * ********** **** can ** '****** ***' ** ******** ***********.

Protecting ******* ********** ******

* ****** ******** **** ****** **** *********** ******* ** "*** does *** **** **** **** ** **** ** ****?" ***** a ****** ***** **/***** *** ********, **** ****** ** ********** by *** '***** **** *****' ** ****** ******* ** *** card. **** *** ***** *** **** ** *******, *** ******* data ** *** **** ** **** ** '*******' ****** * certain *****. *******, *** ******* **********, **** ********** ***** *****-**** or ******** *****, ******** ***** **** * ***** ****. ** accommodate *** ***** **********, ** ** * ****** *********** **** cards *** *** ************ ***** *** '*********' ***** ***, *** the '********' ***** ** * ***** **** **** *** ******* daily **** *** ************ ***** ****** ***** ***** ***** ****** their ******.

************, ******** ***** *** *** *********** ** *** **** ****** rules ** ***** *****, *** *** ** ********** *** ********** access. *******, * ****** ******* ** ***** ***** ** *** 'mechanical ********' ******** **** ******** *** ******** **** ****** **** thrown. *** ***** *************, ** ** ****** ** *** * mechanical, ***** **** **** ** *** ***** **** ****** ****** in ** *********.

Advantages ** *********** *******

*** ******* ************** ** ***** ******* ******* *** **** *** inexpensive ** ********, ********, *** *******.  ******* *** ****** '**** tech' ********** ***** ******* **** ******, *********** * *** **** and ******* ** ** * ***** ** **** ****** *** inexperienced ****** ** ******, *** ******* ** ***** ********** ****** can ****** ** ****** **** ****** **** ******* '*** **********' like *********** *******.

***** ********** *******:

  • ******* ********** ***** ** *******
  • **** ** ********** ***** ** ************* ****
  • *** ** ********** '****** ***' ** ******** ********** ******** **** inside ****
  • ********** ******** **** ***** ********* ****** ** *** *****
  • *********, **** ******** **** ** ** *** - *** ****** allowing *** ******** ************** ** ******

Advantages ** ********** *******

*******, *********** ********** ****** *** *** ******** *** ****** ********** and **** ******** **** ***** ******* ********* ***'*:

  • *********** ************** ** ********* *******
  • ******* ** ******* ******** ****** ********* *** ****** *********
  • *********** *** ** *********** ******* ** '***********'
  • ***** *** *********** ** '****** ****'
  • *********** *** **** ** * ****-********* *****, *** ***** ******** credentials
  • ******** ** *** ********* ******* ** ******* *****, *** ** more ******** *** ******* ** ********
  • **** ********* ** *** ****** ****** ** ***********

Hotel ******* *** ****** ****** ********

*********** ****** ***************** *** ************ *** *******, ***** ********* *** *********** ********** *******. **** business ***** ** ********* *** ******* *******:

  • ******* *** **** ***, ********* ******* *** ****** ********* ** integrator **** ******.
  • ** *** **** **** ** *** ****, *** ************ ** able ** ******* *******. ***** ******* ****** ** *** '***' of *********** ******* ******, *** ** * ****** **** **** the **** ******** *** ************ ***** **** ****.
  • *********** ****** ********* ***** '******* *******' ** '****** *****', *** would ****** *** *********** ******** (*****, ******* *****) **** ********** pricing ******** **** *********** ****** ************, ****** **** ******** ***********.

Hotel ****** ******** ********

******* ****** ********* **** ********* *** ***** ** ***** ****** systems ******** ** ********** ******.  **** **** *******, ***** * careless ** ******** ***** ******* ***** ***** **** **** * 'Master ***' ********, *********** ******** * ****** ***** ** **** every ****:

*** **** ********* ** **** ******** *** ** *******, *** not ********** ********* **** ***** ****** *******. **** * ***** networked ********** ****** ******, **** ** ***** ***** *********** ** corrected ** ****, *** *** **** **** ****** ********** ** simply *** **** ** ****** ****** ** ******* ***** ***** the ******* ** *********.

**********

***** ******** ** ****, *********** ****** ******* ** *** * market ******* ********* ******** ** *** ******** **********. ***** ********** certainly *****, *** ******* *** **** *** *** ******* ****** opportunity *** **** ******* ********* ***** ******* *********. ** *******, the ******** ******** ** *********** '*********' ****** ******* ** **** as '********' *** ******* ******** ** *** *** ****, ******* built ************ ***** ** *** *********** ******.

[****: ** ******* ******* ** **** *** ********* ** **** but *** ************* ******* *** ******** ** ****.]

Comments (10)

***** *******. **** * *** ******* * *** ********** **** these ******* (********** *** ***** **** *** *** ****** *******-**** holes), *** ** *** * **** ***** *******.

* ****** *********:

** * *********** ******, *** **** **** ****** ** ******* command ** **** *** ****. * *********** **** **** *** no ********* ************* ** *** ***** * ********** *** **, it **** ***** **** *** **** ***** ********* '***** **' to ****. *** ********** ******** ******** *** ********* *** **** needed ** ******** *** ****.

*****'* *** **** ***** ********* ** * ***** ** ******** a ***** **** ** ***** ** ****?

*** * **** ****** **** ******* *****?

*****'* *** **** ***** ********* ** * ***** ** ******** a ***** **** ** ***** ** ****?

** *******, **. ****** *** **** ****** ***** *** **** 'I'm ***** ***** ***", ** **** ** *******. ******** ** based ** **** ** ********, *** *** * **** ** cards. ***** ********* ** ** '***** ****' ** '***** ****', just ** **** ********** ** ***** *****.

*** * **** ****** **** ******* *****?

*** **** *******, **. ***** *** ** **** ******* **** can ********** ***** ** **** *** ******** ** ***** (**** is *** ******** ******'********* *****' **** *** *******), *** *** **** ******** ** hotel ****** ***** *** '****-****' *****.

******** ** ***** ** **** ** ********, *** *** * list ** *****. ***** ********* ** ** '***** ****' ** 'white ****', **** ** **** ********** ** ***** *****.

** ** **** ******* ** ***** ********, **** ****** *** old ****, (** *** **********), **** ******* *** **** ** the *** ******?

*** ******** ******* ** *** ***** **** ** ********** ****.** **** ** *** *** **** ** ********* ** *** door ****, *** *** **** ** ** ****** *****.

* **** ** ********* **** **** ** **** *** ***** guest.

** ** ** *** * '*********', *** ****** '****** ***** cards **** **** ***** ******'.

* ***** **** **** *********.

** ******* ******** *** *****

* *********** **** **** *** ** ********* ************* ** *** valid * ********** *** **, ** **** ***** **** *** card ***** ********* '***** **' ** ****. *** ********** ******** contains *** ********* *** **** ****** ** ******** *** ****.

****, *** ********** ******** ** * ***** *** *** *** but *** ***** ** **** ****** ** ******** *** ****, namely ***** **** *** ******** ****.

*** **** ***** ** ******** *** ******* ***** ** **** the **** ***** *** ******** **** ***, ** **** ** can ****** *********** ****** ******* *** ****** ***** ***** ** later. ** *** **** **** ** **** *** ***** (*** that *****), *** ********, ** *** ** *** ********** ***** be ********.

****** *** *** *******; **** ** * ***** ***** ** any ****.

* ***** '*********' ** *** ****** ** * **** ****. The **** **** **** * ****** ** ***** ***** **** used ** **** **, *** '*********' ******* ****** ****** ** not ***** *****. ***** *** **** ** ** ******* ***** on ******* *****/***** ** ******* ****'** *** ***** ******** ********* by ******* ***** ****.

***** ***** ************ ***** *** **** ** **** *** ******* control ***. ** **: **** ***** **** '*' *******, ***** card '*' ****** ** **** ***** * '************' ******** **** opens *** ****, ********** * ***** *** **** ********. ****** - *** ****** ***'* ***** * ***** ****.

***, ***** ***** ****'* ****** *** ** *****, *** **** hospitality ********* *** *** ****** ****** *** *******/******* ******* ** this ***.

*****, **** *******. * *** ***** *** * **** ** Onity ***** *** ******** ** ***** *** ***** * ******** programmer ** **** *****. * ****** ** ***** *** ***** vulnerable ***** *** *****, ************ ** ************* ******** ******.

****://***.******.***/*****/*************/****/**/**/*****-****-****-*****-*****-****-**-**********-******-*****-****-*****-***/#************

****, ***** *** ** *** ****** *'** ****** ** **** year **** ******* ** * ********* **** ********. **** ****** even *** ** *** ** **** ***** **** ************ **** the **** **** ** *****. ** ***** ** * **** follow ** ** ******* *** *** **** *********** **** ***** new ************ ** *** *********** *****.

***** *** *** **** *******,

* *** ****** ******* *** ***** ******* ******.

***'** ********* ** ******* *** **** ** ** ********** ****** system ** ****** *** ****** / *********** ****** *** ******. It'll ***** ** ******** ** *** ** **** ** **** time *** **** ****** *** ** ***** ***** ***** ****** an ********* ******. ********** ** ******** **** ***** ******* **** power ******** ******** *** *** ****** **********

*** *****….**** ****** ** *** *********** ******. *** *** ******* it ** *** *** ********* (**** *** *** ***** *** alone ***** *** ********) ** **** ***** **** **** *** that ** *** **** ****** *** **** **** ** ********* its’ *** ********** ** *** *********** ******.

******* ****** *** ************ *** ** ********** ********** (******* ******** or ******* ****) ** **** ***** ****** ***** ** *** grey **** ******* *********** ******** *** ********* *******. **** ******** guys * **** *** *** **** ** ********** **** ******** and ******** **** ********** **** ****** ****** *** *********. *** locksmiths (*******) *** *** *** ** ***********, ************, *************, *********** the **********/******** *********** **** ** ***** *******.

******** *** *** ** ******* *** **** – ******* **** it *** **** **** ***** **** ******* ***** **** ** the ****** ** **** ***** ***.

*******, ****** ****** ** **** ***** *** **** ***** **** something ** *** ******* *** **** ***** * *** ************ but *** *** **** ** *** ****** (>** ***)…*** ** get ******** *** ***** (******** ** **** ******* ** **** system) ***********. ******** **** ** * ********** *******. ** **** can’t **** * **** **** *****...**** **** ******* **** ****** be ********. **** *** *** ****** ***/** ********* ****** **** require *** **** ** ******** *** ********* ************* ******* **** cannot ** ************ ********* ** ***** ** ******** ***********. ** that ** *** **** ****** ** **** ** ****** *** from *** ****.

** ******** *** **** ******** ** ***** ****** ******* ****** “off ****”….***** *** ******** ** ****** ****** **** **** ****** through ******** ********* ** **** **** ** ****** ********/***** *******. As ******** ************ ****** **** ********** *** ****** ************** **** of ***** ‘******’ ******* *** ********* **** **** *** ******* properties ** **** ****** ****. **** ***** *** ******* ******* to ****** *** *********** ****** *******. **** ** ***** ******* an *** ** ** ******** ***********. (*.*. *********, *****-*******, ********** markets)

******, **** ***** *** ******** **** ****** ****** *** ****** just ** ******** ** *** *** ****** *******. *** **** issue **** ** *****/****…. *** *** ****** *** ******* **** it *** ******* *** ****** ********, ******/****** ******** **********, *** benefiting **** ******* *********** ** ********/********* **** ******* *** ************* demagnetized *****. ************* **** ************ *** ******** **** **** ********* (buy ******** *** ****) *** ****** *** ****** (**** **** mfg). ***** ********? *** **** ** ******* **********!!! ****** *****.

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