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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 OTP3Last edited by Rinat (2021-10-05 07:21:48)