Usage in AReq
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. See Section 6.2.3.1 for additional detail.
Conditional inclusion — source text
For the ARes message, see ACS Signed Content.
Format and scope
Type: Object · Length: Variable, maximum 256 · Maximum length: 256
Source components: 3DS SDK. Channels: 01-APP. Categories: 01-PA, 02-NPA.
Object members
Nested presence rules apply when the parent is supplied. Consult the source for full conditions.
sdkEphemPubKey — SDK Ephemeral
sdkMaxTimeout — SDK Maximum
sdkReferenceNum — SDK Reference
EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 281
Scoped FAQ qualifications
- FAQ 27 — Applicable object-bearing protocol versions
Only when the parent JSON object is present
Evaluate nested presence conditions when the parent object is present. In multiTransaction, merchantList is required when the object is supplied; merchantAmount remains optional.
- FAQ 73 — Applicable object-bearing protocol versions
An optional or conditionally optional field is sent empty
An empty optional field produces error 203 under Req 309. When the empty JSON object contains mandatory data, error 201 may be returned.
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.
Sources and related references
EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 281
Source review status: carried-forward. Carried-forward material has not acquired a new verification claim.
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