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Friday, August 25, 2006

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Visited your blog while searching for something; nice work....keep it up!

Hi Andy,

I am trying to create a test scenario using jPOS.
I have been able to create the ZMK using 3 components that were provided to me.
still I have an encrypted ZPK that needs to be decrypted into 'clear' format.

Regarding the LMK file I need to know if it has some specific format or extension.

I'd really appreciate any suggestions regarding this issue.

Geat work on that Blog !!

How Triple DES Master/Session Encryption is used in retail POS application using POS Terminal like PINPad? I want to understand the sequence starting from PINPad being injected by POS manufacture, then POS application appends the session key during transaction etc. Thanks

Hi,

Great Blog... I am trying to transfer Keys from 8000 to 9000 .Both will have the same LMK. Any idea on how to go about this..

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Resources

  • Alejandro's jPOS Project
    Faced with payment systems challenges? Start here to learn more about Alejandro Revilla's jPOS project.
  • Dave Bergert's Blog
    Insights from my OLS colleague, Dave Bergert, CISSP, CISA, CompTIA Security+, and former Visa-certified QSA.
  • Glenbrook's Blog List
    Glenbrook Partners has compiled "a current summary of the latest content from some of our favorite payments and banking blogs." Dave, Alejandro and I are on the list.
  • soliSYSTEMS
    My friend Roque Solis is our go-to guy for RFID, smart cards, chip cards, integrated circuit cards, HSMs, cryptographic accelerators and public-key cryptography.
  • Specs Online - AMEX
    American Express puts its acquirer specs online for public retrieval.
  • Specs Online - FDMS
    First Data Merchant Services puts its acquirer specs online for public retrieval.
    [NOTE: This repository is accessible only via IE; this link will not work with Firefox or other browsers.]

Documents

  • The PCI Split
    Depicts how we split an implementation into PCI and non-PCI halves.
  • The Virtuous Spiral
    A good payment system unleashes customer creativity. Does yours?
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