Use test data. No commands are sent to a card.
DSPK
DS ID is 8-11 bytes of packed decimal digits. The result is a 12-byte partial key.
DS Summary · OWHF1
DS Digest · OWHF2
Calculator reference
Verification evidence and limitations →
What it calculates
Derive DSPK, DS Summary and DS Digest.
Inputs and methods
Enter the HEX and decimal fields labelled on each tab. Profile-specific lengths are enforced.
Worked example
Worked DSPK example: DS ID · packed decimal HEX: 1234567890123456
DSPK: 1844709CB418709CB4184470
Specification and limits
This demonstrates the first tab only. Other stages need their own profile inputs; outputs do not prove issuer authorization.
M/Chip algorithms ↗