3DS ReferenceProtocol & field guide

EMV 3-D Secure · Core specification 2.3.1.1

Card Security CodecardSecurityCode

Card Security Code in Authentication Request (AReq).

Source edition: Core 2.3.1.1 · Type: String · Length: Variable, 3–4 characters,

Baseline in AReq Conditional

Conditional. Same classification across the remaining channels and categories. Conditional based on DS rules Usage and conditions ↓

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Usage in AReq

Three- or four-digit security code printed on the card.

Conditional inclusion — source text

Conditional based on DS rules

Format and scope

Type: String · Length: Variable, 3–4 characters,

Source components: 3DS Server. 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 217

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 217

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

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