3DS ReferenceProtocol & field guide

EMV 3-D Secure · Core specification 2.3.1.1

Authentication ValueauthenticationValue

Authentication Value in Results Request (RReq).

Source edition: Core 2.3.1.1 · Type: String · Length: Variable, maximum 4000 · Maximum length: 4000

Baseline in RReq Conditional

Conditional. Same classification across the remaining channels and categories. 01-PA: Required if Transaction Status = Y or A Conditional based on DS rules if Transaction Status = I Omitted from the RReq message when sent as an abandonment notification 02-NPA: Conditional based on DS rules. Usage and conditions ↓

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Usage in RReq

Payment System-specific value provided by the ACS or the DS using an algorithm defined by Payment System. Authentication Value may be used to provide proof of authentication.

Conditional inclusion — source text

01-PA: Required if Transaction Status = Y or A Conditional based on DS rules if Transaction Status = I Omitted from the RReq message when sent as an abandonment notification 02-NPA: Conditional based on DS rules.

Related condition fields: transStatus.

Format and scope

Type: String · Length: Variable, maximum 4000 · Maximum length: 4000

Source components: ACS, DS. Channels: 01-APP, 02-BRW, 03-3RI. Categories: 01-PA, 02-NPA.

EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 210

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 210

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

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