RDX Specification

Merchant Challenge Indicator Values: Mastercard Identity Check 2.1 Extensions

An extension field for Mastercard is available to allow for new values in transactions for Message Version 2.1.0.

NameEMV 3DS ValueRDX Message Version: 2.2.0
MessageVersion: 2.1.0
RDX Message Version: 2.2.0
MessageVersion: 2.2.0
MC2.1.0 Extension PresentNO MC2.1.0 Extension Present
NoPreference01NoPreferenceNoPreference
NoChallenge02NoChallengeNoChallenge
PreferChallenge03PreferChallengePreferChallenge
MandatedChallenge04MandatedChallengeMandatedChallenge
NoChallengeRiskPerformed05NoChallengeNoChallengeRiskPerformed
NoChallengeDataOnly06NoChallengeNoChallengeDataOnly
NoChallengeSCAPerformed07NoChallengeNoChallengeSCAPerformed
NoChallengeWhitelistExempt08n/a (field will be null or missing)NoChallengeWhitelistExempt
PreferChallengeWhitelistPrompt09n/a (field will be null or missing)PreferChallengeWhitelistPrompt