5
The security of access codes, contactless RFID devices and remote controls
A control panel enables each user to be assigned with one 4, 6 or 8-digit code and up to two RFID tags
for system authorization. User authorization is required during each operation via keypad, voice menu,
a computer, web or mobile apps. Code length affects number of possible combinations and therefore
code security.
The number of code combinations depends on the configuration:
Ways to improve protection against guessing the valid code:
a Using a code with more digits (6 or 8-digit codes)
a More advanced types of authorization, such as “Card confirmation with a code“
or “Double authorization”.
Control panel
parameters
4 DIGITS 6 DIGITS 8 DIGITS
Using
„Code with a prefix“
= 10
4
= (10.000) = 10
6
= (1.000.000) = 10
8
= (100.000.000)
„Code with a prefix“
and „Duress access
control“ both disabled
= 10
4
– (Number of users – 1) = 10
6
– (Number of users – 1) = 10
8
– (Number of users – 1)
„Code with a prefix“
disabled; „Duress access
control“ enabled
≤ 10
4
– ((Number of users – 1) * 3) ≤ 10
6
– ((Number of users – 1) * 3) ≤ 10
8
– ((Number of users – 1) * 3)
Using only an RFID
card with a range of 14
characters (6 constant + 8
variable)
= 10
8
= (100.000.000) = 10
8
= (100.000.000) = 10
8
= (100.000.000)
„Code with a prefix“ and
„Card confirmation with
a code“ both enabled
= ( 10
8
* 10
4
) = 10
12
=
(1.000.000.000.000)
= ( 10
8
* 10
6
) = 10
14
=
(100.000.000.000.000)
= ( 10
8
* 10
8
) = 10
16
=
(1.000.000.000.000.000)
„Code with a prefix“
disabled; „Card con-
firmation with a code“
enabled
= 10
8
* (10
4
– (Number of users – 1))
= 10
8
* (10
6
– (Number of users – 1))
= 10
8
* (10
8
– (Number of users – 1))
2. OPERATING THE JABLOTRON 100 SYSTEM
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