EMV Tag Reference
Tools/EMV Tag Reference/9F45
Card (ICC)Format: bLength: 2
9F45

Data Authentication Code

Tag ID
9F45
Format
b
Length (bytes)
2
Source
Card (ICC)

What it is

Issuer-assigned value recovered from the Signed Static Application Data during SDAStatic Data AuthenticationOffline check where the terminal verifies a fixed issuer signature over static card data. It cannot prove the card is live, so it is vulnerable to cloning and replay.View in glossary → and retained by the terminal.

Specification reference

Defined in: EMV 4.x Book 3 (Application Specification), Annex A — Data Element Dictionary

Decode & build this tag

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