About

I use this as a kind of journal of little projects I do, in case it is useful or otherwise interesting to others.

2 thoughts on “About

  1. Joao

    I have interest in DUKPT Decrypt for decrypt Encrypted PIN Blocks, how I can get this?

    Reply
    1. ziggurat29 Post author

      Various of my fintech apps had ownership transferred to a separate party some years back. That’s just code, though, and I still remember the algorithms. What’s the application? testing? It matters a little to be precise, because the base DUKPT key is transformed into a variant according to purpose (PIN, MAC, Data encryption), and further in the case of data encryption, often the key is fed into AES rather than TDES.

      Reply

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