TOOLS / EMV

EMV Calculator

Card keys, session keys, and cryptograms. Use the result buttons to continue through the chain; editing an earlier stage clears dependent results.

· Key generation → KCV → TR-31

EMV profile

Common derivation, no parity adjustment, padding 1, ARPC Method 1.

Example workflows; use the settings required by your card profile. TDES algorithm edits switch to manual settings.

16-byte, two-key TDES. Hexadecimal spaces are accepted.

EMV tag 5F34, commonly 00 or 01. Use the value from your card.

Calculator reference

Verification evidence and limitations →

What it calculates

Derives card and session keys and calculates application and response cryptograms.

Inputs and methods

HEX master keys, PAN, PSN, ATC and exact transaction bytes. TDES and AES workflows have different rules.

Worked example

UDK: Option A, odd parity, MDK 0123456789ABCDEFFEDCBA9876543210, PAN 4761739001010010, PSN 01.

2F02C8B0E9CBC7B05B5167F7A1CDE6E5

Specification and limits

Profile labels are presets, not certification. Select the algorithm, padding and data layout required by the card.

EMV specifications ↗