![]() ![]() I got a trash card, a card that I have to use to open the underground trash bin, that I want to clone. ![]() The MIFARE NFC card is used in many environments. Writing a 4Byte dump on a different card.About this manufacturer block (Sector 0 – Block 0).Reading and capturing contents of the card.Once MFOC finds a correct key the tool can “guess” the other keys and dump the memory of the tag. It tries different keys against a MIFARE tags. MFOC – MiFare classic Offline Cracker The easiest and most basic tool to use against MIFARE tags, is MFOC. The Proxmark is the tool behind all major RFID Security Research breakthroughs: Mifare Classic Crypto cracking, Mifare PRNG analysis, VingCard exploitation & defeat to name a few. It can also be used for cracking Mifare Classic keys. There are also other types like the “Mifare Classic 4k” and the “Mifare Mini” each having a different memory size. 1k stands for the size of data the tag can store. The NFC tag I analyzed is a so called “Mifare Classic 1k” tag. Disclaimer These materials are for educational and research. Decoding the data, creating hotel „master” card. ![]()
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