Secure Access Control Using Mobile Bluetooth Devices
Short summary:
digital keys on Bluetooth-enabled mobile phones providing wireless ... It is on border of being a hack, but it is our opinion. that it obeys the standard. ...
Long summary:
The physical key is an integrated and natural part of most peopleâ s life. It is a
well-tested and well-known technology, but it also has its ï¬ aws. In particular,
for companies needing access to many different private buildings, each with
its own lock and key, the distribution of keys to the right employee at the right
time is a complex and costly affair. Furthermore, carrying a large number of
keys is a burden for each employee and increases the chance of keys getting
stolen or lost.
Our goal is to design a solution for secure access control that can replace
physical keys for accessing private buildings. We propose a solution using
digital keys on Bluetooth-enabled mobile phones providing wireless and au-
tomatic unlocking. The design allows easy distribution of keys to users, with
access control enforced by easily deployable autonomous lock devices allow-
ing a non-centralized multi-company approach.
We present a solution for fully automatic discovery and connection estab-
lishment using Bluetooth. Moreover we present a simple and secure authenti-
cation and access control protocol, allowing each mobile phone to unlock mul-
tiple different locks using a single identity certiï¬ cate and public unencrypted
digital keys. We build a prototype application for a mobile phone, establish a
cost model for the mobile phone and measure the exact energy consumption
and time usage of the application. Finally, we relax the assumptions about us-
ing Bluetooth and a mobile phone, and discuss the requirements for an optimal
mobile device.
Source: www.diku.dk
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