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#1 2021-10-04 13:00:54

Rinat
Contributor
Registered: 2021-10-01
Posts: 2

Mifare Ultralight ALARM KEYBOB

Hi Everybody,
I'm using Mifare Ultralight KEYFOB on Alarm System.
Bad news the manufacturer has stopped the design and the production of the used keyfob...
I think the system use the OTP to check if the Keyfob can ba added in the Alarm system.
I'm looking for the formula to calculate the OTP but I really don't know how it's done...
you will find bellow 2 examples of keyfob from the manufacturer.
If somebody help me he will save my life...

EXAMPLES :

0	04	40	F9	35		UID0  UID1  UID2  BCC0
1	E2	26	68	80		UID3  UID4  UID6  UID6
2	2C	48	00	00		BCC1  IN    LOCK0 LOCK1
3	41	56	C9	29		OTP0  OTP1  OTP2   OTP3

0	04	50	FB	27		UID0  UID1  UID2  BCC0
1	E2	26	68	81		UID3  UID4  UID5  UID6
2	2D	48	00	00		BCC1  INT   LOCK0 LOCK1
3	41	56	26	AA		OTP0  OTP1  OTP2  OTP3

Last edited by Rinat (2021-10-05 07:21:48)

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