| ChallengeInd | Indicates whether a challenge is requested for this transaction | No | deviceRenderingOptionsIF | Lists all of the SDK Interface types that the device supports for displaying specific challenge user interfaces within the SDK. Values accepted: • 01 = Native • 02 = HTML • 03 = Both Yes | AN2 | 3DSV2 |
| deviceRenderOptionsUI | Lists all UI types that the device supports for displaying specific challenge user interfaces within the SDK. String values accepted: • 01 = Text • 02 = Single Select • 03 = Multi Select • 04 = OOB • 05 = HTML Other (valid only for HTML UI) | Yes | AN2 | 3DSV2 |
| sdkAppID | Universally unique ID created upon all installations and updates of the 3DS Requestor App on a Consumer Device. This will be newly generated and stored by the 3DS SDK for each installation or update. Length: 36 characters JSON Data Type: String Canonical format as defined in IETF RFC 4122. This may utilise any of the specified versions as long as the output meets specified | Yes | AN36 | 3DSV2 |
| sdkEphemPubKey | Public key component of the ephemeral key pair generated by the 3DS SDK and used to establish session keys between the 3DS SDK and ACS. In AReq, this data element is present as its own object. In ARes, this data element is contained within the ACS Signed Content JWS Object. | Yes | AN256 | 3DSV2 |
| sdkMaxTimeout | Indicates maximum amount of time (in minutes) for all exchanges. Greater than or = 05 | Yes | N2 | 3DSV2 |
| sdkreferenceNumber | Identifies the vendor and version for the 3DS SDK that is integrated in a 3DS Requestor App, assigned by EMVCo when the 3DS SDK is approved. | Yes | AN32 | 3DSV2 |
| threeDSReqPriorAuthData | Data that documents and supports a specific authentication process. In the current version of the specification this data element is not defined in detail, however the intention is that for each 3DS Requestor Authentication Method, this field carry data that the ACS can use to verify the authentication process. In future versions of the specification, these details are expected to be included | No | AN2048 | 3DSV2 |
| threeDSReqPriorAuthMethod | Mechanism used by the Cardholder to previously authenticate to the 3DS Requestor | No | AN2 | 3DSV2 |
| threeDSReqPriorAuthTimestamp | Date and time in UTC of the prior cardholder authentication | No | AN16 | 3DSV2 |
| browser | Parameters of the shopper web browser. See the table values Object - browser | Conditional | Object | 3DSV2 |
| sdk | Parameters of the shopper application. See the table values Object - sdk | Conditional | Object | sdkTransID | Universally unique transaction identifier assigned by the 3DS SDK to identify a single transaction. | Yes | AN36 | 3DSV2 |