Proxmark3 community
Research, development and trades concerning the powerful Proxmark3 device.
Remember; sharing is caring. Bring something back to the community.
"Learn the tools of the trade the hard way." +Fravia
You are not logged in.
Announcement
Time changes and with it the technology
Proxmark3 @ discord
Users of this forum, please be aware that information stored on this site is not private.
#1 2020-08-20 13:04:32
- iceman
- Administrator
- Registered: 2013-04-25
- Posts: 9,538
- Website
DEF CON Safe Mode Payment Village - Making Sense of EMV Card data
DEF CON Safe Mode Payment Village - Making Sense of EMV Card Data by Steven Murdoch
abstract
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.
Offline