vb.net - Mifare, math challenge -


i have 2 types of readers rfid @ work. 1 access control, , wall mounted lcd display conneted server, , 1 usb waveid, pcprox reader.

when read mifare card 1k usb reader or nfc reader in andriod phone get:

hex: 08 e5 2a 46 (reversed) dec: 149236294

but when read same card in wall mounted reader get:

hex: 42 6c 87 a3  dec: 1114408867

and number number security software accept grant access.

i have computer register new cards @ desk, , wall mounted reader @ diffrent location @ work. can't move location or move wall mounted reader room.

i have contacted company deliverd our security system, can't tell me or don't know how system work, because explanation got system reads mifare card reversed.

now, don't know if math problem, first thought there kind of offset, problem not easy.

have 6 old cards there numbers, if try "crack" this.

pcprox/nfc       wall mounted 149236294        1114408867 149331526        4083838560 149829318        1819815912 149761094        1167209387 3349747860       4273657149 3349830260       2599240414

i love write own software in vb.net "translate" numbers, save me time.


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