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Security Description Of Wireless
Internet Services' System
There are 3 levels of
security in the system that an intruder would need to break down to gain
access to data on the Wide Area Network (WAN).
First Level: Frequency Hopping Spread Spectrum
The system uses a transmission
method called Frequency Hopping Spread Spectrum. Data packets are transmitted
over several different frequencies in pieces. Each frequency is only active
with a small piece of data for a fraction of a second before the next frequency
is used. This takes place at a rate of dozens of times per second. There
is virtually no way an intruder would be able to intercept the data because
he would first need to be synchronized with the frequencies.
Second Level: Network Identifier Sequence
Lets assume an intruder
makes it past level one. Each private wireless network is setup with a
unique Network Identifier sequence. ALL stations within that network must
be programmed with the correct sequence before they will associate with
one of the access points. This sequence would be extremely difficult for
an intruder to crack because of the number of possible combinations, which
are well above the Quintillions. It takes approximately 10 seconds to authenticate
a station with the correct sequence, therefore, the intruder would only
be able to try 6 ID's per minute at best, out of an astronomical number
of possibilities.
Third Level: Data Encryption
In the unlikely chance
an intruder is able to break through the security in levels one and two,
there is yet another level to overcome, Data Encryption. This encryption
uses a key that can vary in size from 40 bits to 128 bits. Each bit added
to the key doubles the number of combinations an intruder would have to
try. The government standard key size is 56 bits which is 7,200,000,000,000,000,000
combinations. Adding several bits increases this number to an astronomical
number. It has been said that if all the computers in the world attacked
a 128 bit key collectively, the sun would burn out before all the combinations
were tried.
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