cain.019.001.02
The VerificationResponse message is sent by any party to any party (acquirer, agent or issuer) in response to a VerificationInitiation message.
Message Construction
Every ISO20022 message has at the highest level what we call ‘building blocks’. Because the message is constructed as immutable records, the association is by composition. Below you can see the relationship between the message and its constituent building blocks: For comparison, see the ISO20022 official specification
classDiagram direction LR %% VerificationResponseV02 recursion level 0 with max 0 VerificationResponseV02 *-- "1..1" Header60 : Header VerificationResponseV02 *-- "1..1" VerificationResponse2 : Body VerificationResponseV02 *-- "0..1" ContentInformationType20 : SecurityTrailer
Now, we will zero-in one-by-one on each of these building blocks.
Header building block
Information related to the management of the protocol. Set of characteristics related to the protocol.
For comparison, see the ISO20022 official specification
classDiagram direction tb %% Header60 recursion level 0 with max 1 class Header60{ MessageFunction MessageFunction17Code ProtocolVersion IsoMax2048Text ExchangeIdentification IsoMax35Text ReTransmissionCounter IsoMax3NumericText CreationDateTime IsoISODateTime } Header60 *-- "0..1" BatchManagementInformation1 : BatchManagementInformation Header60 *-- "1..1" GenericIdentification183 : InitiatingParty Header60 *-- "0..1" GenericIdentification183 : RecipientParty Header60 *-- "0..0" AdditionalData1 : TraceData Header60 *-- "0..0" Traceability9 : Traceability %% BatchManagementInformation1 recursion level 1 with max 1 class BatchManagementInformation1{ CollectionIdentification IsoMax35Text BatchIdentification IsoMax35Text MessageSequenceNumber IsoMax15NumericText MessageChecksumInputValue IsoMax140Binary } %% GenericIdentification183 recursion level 1 with max 1 class GenericIdentification183{ Identification IsoMax35Text Type PartyType17Code OtherType IsoMax35Text Assigner PartyType18Code Country ISOMax3ACountryCode ShortName IsoMax35Text } %% GenericIdentification183 recursion level 1 with max 1 class GenericIdentification183{ Identification IsoMax35Text Type PartyType17Code OtherType IsoMax35Text Assigner PartyType18Code Country ISOMax3ACountryCode ShortName IsoMax35Text } %% AdditionalData1 recursion level 1 with max 1 class AdditionalData1{ Type IsoMax35Text Value IsoMax2048Text } %% Traceability9 recursion level 1 with max 1 class Traceability9{ TraceDateTimeIn IsoISODateTime TraceDateTimeOut IsoISODateTime } Traceability9 *-- "1..1" GenericIdentification183 : RelayIdentification
Header60 members
Member name | Description | Data Type / Multiplicity |
---|---|---|
MessageFunction | Identifies the type of process related to the message. | MessageFunction17Code - Required 1..1 |
ProtocolVersion | Version of the acquirer to issuer protocol specifications. | IsoMax2048Text - Required 1..1 |
ExchangeIdentification | Unique identification of an exchange of messages between two parties. | IsoMax35Text - Optional 0..1 |
ReTransmissionCounter | Number of retransmission of the message. Incremented by one for each retransmission. | IsoMax3NumericText - Optional 0..1 |
CreationDateTime | Date and time at which the message was sent. | IsoISODateTime - Required 1..1 |
BatchManagementInformation | Information related to the batch and the collection to which the message belongs if any. | BatchManagementInformation1 - Optional 0..1 |
InitiatingParty | Unique identification of the partner that has initiated the exchange. | GenericIdentification183 - Required 1..1 |
RecipientParty | Unique identification of the partner that is the recipient of the message exchange. | GenericIdentification183 - Optional 0..1 |
TraceData | Information sent in the request message to be returned in the response one, for instance to help in the retrieval of the context of the exchange. | AdditionalData1 - Unknown 0..0 |
Traceability | Identification of partners involved in exchange from the merchant to the issuer, with the relative timestamp of their exchanges. | Traceability9 - Unknown 0..0 |
Body building block
Information related to the verification response Information related to the verification response message. For comparison, see the ISO20022 official specification
classDiagram direction tb %% VerificationResponse2 recursion level 0 with max 1 class VerificationResponse2{ ICCRelatedData IsoMax10KHexBinaryText } VerificationResponse2 *-- "1..1" Environment32 : Environment VerificationResponse2 *-- "1..1" Context13 : Context VerificationResponse2 *-- "1..1" Transaction140 : Transaction VerificationResponse2 *-- "0..1" AddendumData5 : AddendumData VerificationResponse2 *-- "1..1" ProcessingResult18 : ProcessingResult VerificationResponse2 *-- "0..0" ProtectedData1 : ProtectedData VerificationResponse2 *-- "0..0" SupplementaryData1 : SupplementaryData %% Environment32 recursion level 1 with max 1 Environment32 *-- "1..1" PartyIdentification263 : Acquirer Environment32 *-- "0..1" PartyIdentification263 : Originator Environment32 *-- "0..1" PartyIdentification263 : Sender Environment32 *-- "0..1" PartyIdentification263 : Receiver Environment32 *-- "0..1" PartyIdentification258 : Acceptor Environment32 *-- "0..1" PartyIdentification263 : Destination Environment32 *-- "0..1" Terminal6 : Terminal Environment32 *-- "0..1" PartyIdentification263 : Issuer Environment32 *-- "0..1" CardData9 : Card Environment32 *-- "0..1" Wallet2 : Wallet Environment32 *-- "0..1" Token3 : Token Environment32 *-- "0..1" Cardholder19 : Cardholder %% Context13 recursion level 1 with max 1 Context13 *-- "0..1" PointOfServiceContext4 : PointOfServiceContext Context13 *-- "0..1" TransactionContext8 : TransactionContext Context13 *-- "0..0" Verification4 : Verification Context13 *-- "0..1" RiskContext2 : RiskContext %% Transaction140 recursion level 1 with max 1 class Transaction140{ TransactionType ISO8583TransactionTypeCode TransactionSubType IsoMax35Text TransactionDescription IsoMax1000Text } Transaction140 *-- "0..0" AdditionalService2 : AdditionalService Transaction140 *-- "0..0" SpecialProgrammeQualification1 : SpecialProgrammeQualification Transaction140 *-- "1..1" TransactionIdentification18 : TransactionIdentification Transaction140 *-- "0..1" Amount15 : ReconciliationAmount Transaction140 *-- "0..0" AdditionalAmounts3 : AdditionalAmount Transaction140 *-- "0..0" AdditionalFee2 : AdditionalFee Transaction140 *-- "0..0" AccountBalance2 : AccountBalance Transaction140 *-- "0..1" AccountDetails3 : AccountFrom Transaction140 *-- "0..0" AdditionalData1 : AdditionalData %% AddendumData5 recursion level 1 with max 1 AddendumData5 *-- "0..1" Instalment4 : Instalment AddendumData5 *-- "0..0" AdditionalData1 : AdditionalData %% ProcessingResult18 recursion level 1 with max 1 class ProcessingResult18{ ApprovalCode IsoExact6AlphaNumericText ActionRequired IsoYesNoIndicator } ProcessingResult18 *-- "0..1" ApprovalEntity2 : ResponseSource ProcessingResult18 *-- "1..1" ResultData11 : ResultData ProcessingResult18 *-- "0..0" ErrorDetails2 : ErrorDetail ProcessingResult18 *-- "0..1" ResultData7 : OriginalResultData ProcessingResult18 *-- "0..0" Action13 : Action ProcessingResult18 *-- "0..0" AdditionalAction1 : AdditionalAction ProcessingResult18 *-- "0..0" AdditionalInformation29 : AdditionalInformation %% ProtectedData1 recursion level 1 with max 1 class ProtectedData1{ ContentType ContentType3Code } ProtectedData1 *-- "0..1" EnvelopedData6 : EnvelopedData ProtectedData1 *-- "0..1" EncryptedData1 : EncryptedData %% SupplementaryData1 recursion level 1 with max 1 class SupplementaryData1{ PlaceAndName IsoMax350Text } SupplementaryData1 *-- "1..1" IsoSupplementaryDataEnvelope1 : Envelope
VerificationResponse2 members
Member name | Description | Data Type / Multiplicity |
---|---|---|
Environment | Environment of the transaction. | Environment32 - Required 1..1 |
Context | Context in which the card transaction is performed. | Context13 - Required 1..1 |
Transaction | Card transaction for which an authorisation is requested. | Transaction140 - Required 1..1 |
AddendumData | Component contains data structures applicable to certain industries that require specific data within transaction messages | AddendumData5 - Optional 0..1 |
ProcessingResult | Outcome of the processing of the verification. | ProcessingResult18 - Required 1..1 |
ICCRelatedData | Data related to an integrated circuit card application embedded in the payment card of the cardholder. ISO 8583 bit 55 | IsoMax10KHexBinaryText - Optional 0..1 |
ProtectedData | Contains protected data and the attributes used to protect the data. | ProtectedData1 - Unknown 0..0 |
SupplementaryData | Additional information that can not be captured in the structured fields and/or other specific block. | SupplementaryData1 - Unknown 0..0 |
SecurityTrailer building block
Trailer of the message containing a MAC. General cryptographic message syntax (CMS) containing encrypted data. For comparison, see the ISO20022 official specification
classDiagram direction tb %% ContentInformationType20 recursion level 0 with max 1 class ContentInformationType20{ MAC IsoMax8HexBinaryText } ContentInformationType20 *-- "1..1" MACData1 : MACData %% MACData1 recursion level 1 with max 1 class MACData1{ Control IsoExact1HexBinaryText KeySetIdentifier IsoMax8NumericText DerivedInformation IsoMax32HexBinaryText Algorithm IsoMax2NumericText KeyLength IsoMax4NumericText KeyProtection IsoMax2NumericText KeyIndex IsoMax5NumericText PaddingMethod IsoMax2NumericText InitialisationVector IsoMax32HexBinaryText }
ContentInformationType20 members
Member name | Description | Data Type / Multiplicity |
---|---|---|
MACData | Type of data protection. ISO 8583:87 bit 53 or 110 ISO 8583:93 bit 53 or 111 ISO 8583:2003 bit 53 or 50 | MACData1 - Required 1..1 |
MAC | Message Authentication Code data. Binary, length of 8 ISO 8583 bit 64 or bit 128 | IsoMax8HexBinaryText - Required 1..1 |
Extensibility and generalization considerations
To facilitate generalized design patterns in the system, the VerificationResponseV02 implementation follows a specific implementaiton pattern. First of all, VerificationResponseV02 impleemnts IOuterRecord indicating it is the outermost logical part of the message definition. Like all message wrappers, VerificationResponseV02Document implements IOuterDocument. Because VerificationResponseV02 implements IOuterDocument, it is a suitable template parameter for IOuterDocument, and causes the internal ‘Message’ to be of type VerificationResponseV02.
classDiagram class IOuterRecord VerificationResponseV02 --|> IOuterRecord : Implements VerificationResponseV02Document --|> IOuterDocument~VerificationResponseV02~ : Implements class IOuterDocument~VerificationResponseV02~ { VerificationResponseV02 Message }
Document wrapper for serialization
The only real purpose VerificationResponseV02Document serves is to cause the document to be serialized into the ‘urn:iso:std:iso:20022:tech:xsd:cain.019.001.02’ namespace. Therefore, it will probably be the usual practice to build the message and construct this wrapper at the last minute using VerificationResponseV02.ToDocument() method. The returned VerificationResponseV02Document value will serialize correctly according to ISO 20022 standards.
classDiagram VerificationResponseV02Document *-- VerificationResponseV02 : Document
Sample of message format
This is an abbreviated version of what the message should look like.
<Document xmlns="urn:iso:std:iso:20022:tech:xsd:cain.019.001.02">
<VrfctnRspn>
<Hdr>
<!-- Header inner content -->
</Hdr>
<Body>
<!-- Body inner content -->
</Body>
<SctyTrlr>
<!-- SecurityTrailer inner content -->
</SctyTrlr>
</VrfctnRspn>
</Document>
Data from ISO specification
This is the technical data from the specification document.
<messageDefinition
xmi:id="_b47ZkYwFEeugeuahCxXQ-Q"
previousVersion="_qGCIhVgMEeedJb6VxsnkPg"
name="VerificationResponseV02"
definition="The VerificationResponse message is sent by any party to any party (acquirer, agent or issuer) in response to a VerificationInitiation message."
registrationStatus="Registered"
messageSet="_kT2-dARsEeWTJNHF-ohSqw"
xmlTag="VrfctnRspn"
rootElement="Document"
xmlns:xmi="http://www.omg.org/XMI">
<messageBuildingBlock
xmi:id="_b47Zk4wFEeugeuahCxXQ-Q"
previousVersion="_qGCIiFgMEeedJb6VxsnkPg"
name="Header"
definition="Information related to the management of the protocol."
registrationStatus="Provisionally Registered"
maxOccurs="1"
minOccurs="1"
xmlTag="Hdr"
complexType="_x3IU4RvREey2RdTw-AkXzg" />
<messageBuildingBlock
xmi:id="_b47ZlYwFEeugeuahCxXQ-Q"
previousVersion="_qGCIiVgMEeedJb6VxsnkPg"
name="Body"
definition="Information related to the verification response"
registrationStatus="Provisionally Registered"
maxOccurs="1"
minOccurs="1"
xmlTag="Body"
complexType="_i0v8MYwFEeugeuahCxXQ-Q" />
<messageBuildingBlock
xmi:id="_b47Zl4wFEeugeuahCxXQ-Q"
previousVersion="_qGCIhlgMEeedJb6VxsnkPg"
name="SecurityTrailer"
definition="Trailer of the message containing a MAC."
registrationStatus="Provisionally Registered"
maxOccurs="1"
minOccurs="0"
xmlTag="SctyTrlr"
complexType="_fP-osaQuEeeWXKXf3KjtmQ" />
<messageDefinitionIdentifier
businessArea="cain"
messageFunctionality="019"
flavour="001"
version="02" />
</messageDefinition>
ISO Building Blocks
The following items are used as building blocks to construct this message.