3DS ReferenceProtocol & field guide

EMV 3-D Secure · Core specification 2.3.1.1

SDK TypesdkType

SDK Type in Authentication Request (AReq).

Source edition: Core 2.3.1.1 · Type: String · Length: 2 characters · Minimum length: 2 · Maximum length: 2

Baseline in AReq Required

Varies by context. Requirement or applicability varies by channel or message category. Select a specific context to resolve it. Usage and conditions ↓

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Valid values

CodeMeaning
01Default-SDK
02Split-SDK

Source: EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 283. Read usage and conditions.

Reserved values

CodeMeaning
03–79Reserved for EMVCo future use (values invalid until defined by EMVCo)
80–99Reserved for DS use

Usage in AReq

Indicates the type of 3DS SDK. This data element provides additional information to the DS and ACS to determine the best approach for handling the transaction.

Format and scope

Type: String · Length: 2 characters · Minimum length: 2 · Maximum length: 2

Source components: 3DS Server. Channels: 01-APP. Categories: 01-PA, 02-NPA.

EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 283

Transaction context

This reference covers the published source edition. Use the explorer to inspect this field and any applicable transaction conditions. Scheme programme requirements are not inferred from the protocol edition.

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Sources and related references

EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 283

Source review status: carried-forward. Carried-forward material has not acquired a new verification claim.

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