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TagInfo - how does it verify Desfire EV3 originality?

TagInfo has the capability to verify both the Symmetric and Asymmetric Originality signatures for a given DESFIRE EV3 card.  

Does anyone know if TagInfo has the keys needed for the symmetric originality checks embedded in the application, or does TagInfo outsource the checks to a remote server?

Online authenticationRe: TagInfo - how does it verify Desfire EV3 originality?

When the symmetric check is triggered in TagInfo, it performs an online authentication toward NXP's Hardware Security Module (HSM) to execute the check. The symmetric originality check in TagInfo requires an active internet connection to NXP's backend, and it will fail in offline scenarios.