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Making sense of EMV card data – decoding the TLV format

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  • Making sense of EMV card data – decoding the TLV format

    EMV (sometimes known as Chip and PIN) is the worldwide standard for smart card payments. It was designed to allow credit and debit cards issued by any bank work to make a payment through any terminal, even across international borders and despite chip cards being extremely limited in the computation they can perform. In this talk I’ll discuss how EMV achieves this difficult task, through the use of the TLV (Tag-Length-Value) data format. I will demonstrate how to decode TLV data found on real EMV chip cards, and what significance this data has in the wider payment ecosystem. Finally I’ll discuss how the use of TLV, despite its advantages, has contributed to the creation of security vulnerabilities in Chip and PIN.

    Speaker(s): Dr Steven J. Murdoch

    Location: Payment Vlg

    Discord: https://discord.com/channels/7082082...33473558626314

    Event starts: 2020-08-07 10:00 (10:00 AM) PDT (UTC -07:00)

    Event ends: 2020-08-07 11:00 (11:00 AM) PDT (UTC -07:00)

    For the most up-to-date information, please either visit https://info.defcon.org, or use HackerTracker, which is available for iOS and Android. This is an automated message, and this data was last modified 2020-07-31T01:07 (UTC).
    Starts
    August 7, 2020 10:00
    Ends
    August 7, 2020 11:00
    Location
    Payment Vlg
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