![]() I used the KKmoon ACS122U, it worked like a charm. Prerequisitesįirst of all you’re going to need a NFC Reader/Writer. ![]() These slides from give plenty of more technical information about Mifare Classic and CRYPTO-1 if you’re curious about it. Plus I’ve got a bunch of Mifare cards in my wallet and too much time on my hands… Well they are pretty widely used, they’re cheap and (that’s the fun part) their proprietary encryption algorithm (CRYPTO-1, original isn’t it?) has been reverse engineered and broken by researchers 10 years ago (happy birthday!). First of all, why Mifare Classic 1k specifically? ![]() Well let’s look into that, more precisely we’re going to recover the keys allowing us to read and write data on Mifare Classic 1k cards. ![]() If you’re as curious as I am, you probably already wondered how easy it would be to read, write and duplicate the data on the NFC cards in your wallet! ![]()
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