VerificationResponseV02

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.