emvlab.org
Updates in June 2017: For more details on updates to EMVLab, including HTTPS and better handling of 3-byte and unknown tags see my blog post.
Name Description Source Format Template Tag Length P/C
Track 2 Equivalent Data Contains the data elements of track 2 according to ISO/IEC 7813, excluding start sentinel, end sentinel, and Longitudinal Redundancy Check (LRC), as follows: Primary Account Number (n, var. up to 19) Field Separator (Hex 'D') (b) Expiration Date (YYMM) (n 4) Service Code (n 3) Discretionary Data (defined by individual payment systems) (n, var.) Pad with one Hex 'F' if needed to ensure whole bytes (b) ICC b 70 or 77 57 0–19 primitive

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https://emvlab.org/ – the one stop site for payment system researchers and practitioners – © 2009–2019

This site is run by Steven Murdoch and hosted by the Information Security Group at University College London. More details about the work we are doing can be found on our information security research blog: Bentham’s Gaze.

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