Section

Column

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In case the Access Control Server (ACS) of the cardholder's bank does not support any EMV 3DS protocol version (i.e. 2.0 or higher, see acsStartProtocolVersion) the threeDSMethodDataForm element of the versioningData object in the payment response will be Null.

Sequence Diagram

3DS 1.0 Authentication

In order to a 3DS 1.0 authentication request through the cardholder browser it is required to construct a form with the data elements provided in threeDSLegacy and to post it to the acsURL.

The form fields that are sent to the ACS are listed in the table below:

Table Filter

default	Beschreibung
isFirstTimeEnter	false
hideColumns	true
sparkName	Sparkline
hidePane	true
datepattern	dd M yy
id	1624530922228_-1753927259
worklog	365\|5\|8\|y w d h m\|y w d h m
isOR	AND
separator	Point (.)
order	0

Multiexcerpt

MultiExcerptName	authentication

Table Transformer

dateFormat	dd M yy
export-word	false
show-source	false
export-csv	false
id	1624530922231_-1046994414
transpose	false
worklog	365\|5\|8\|y w d h m\|y w d h m
separator	.
export-pdf	false
sql	SELECT * FROM T*

Form Element	Description

1

Beschreibung
PAReq	A constructed, Base64 encoded and compressed field carrying the Payer Authentication Request Message Fields. The compression algorithm used is a combination of LZ77 and Huffman coding as specified in RFC 1951.

2

Ein konstruiertes, Base64-codiertes und komprimiertes Feld mit den Feldern der Payer Authentication Request Message. Der verwendete Kompressionsalgorithmus ist eine Kombination von LZ77- und Huffman-Codierung gemäß RFC 1951.
TermURL	The merchant URL the ACS will redirect the cardholder to after the authentication has concluded. Note

that Computop Paygate

that

Multiexcerpt include

SpaceWithExcerpt	EN
MultiExcerptName	Platform-Name
PageWithExcerpt	Wording

adds the fields PayID, TransID and MID in the query string to the base URL. Please do not alter the TermURL!

Die Händler-URL, wohin der ACS den Karteninhaber nach Abschluss der Authentisierung weiterleitet. Beachten Sie, dass das

Multiexcerpt include

SpaceWithExcerpt	DE
MultiExcerptName	Platform-Name
PageWithExcerpt	DE:Wording

die Felder PayID, TransID und MID im Anfrage-String zur Basis-URL hinzufügt. Bitte ändern Sie die TermURL nicht!

3title

language

xml


MD	The MD (i.e. Merchant Data) field can carry whatever data the merchant needs to continue the session. Please note that this field must be present in the form even though it is not used.

Code Block

Das Feld MD (d.h. Händlerdaten) kann beliebige Daten transportieren, die der Händler fpr die Fortsetzung der Sitzung benötigt. Beachten Sie bitte, dass dieses Feld im Formular vorhanden sein muss, auch wenn es nicht verwendet wird.

Sample: PAReq form passed through the Cardholder to the ACS URL

Multiexcerpt

MultiExcerptName	sample

Code Block

language	xml
linenumbers	true

<html>
    <head>
        <script language=\"javascript\">
            <!--
                function sendpareq()
                    {  
                        document.pareq_form.submit();
                    }
            // -->
        </script>
    </head>
     
    <body onload="javascript:sendpareq();">
        <form action="https://pit.3dsecure.net/VbVTestSuiteService/pit1/acsService/paReq?summary=ZTIwOWMwYmEtNTVhOC00NDExLThkZDktYzllODk1NmZlNDQ0" method="POST" name="pareq_form">
            <input type="hidden" name="PaReq" value="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">
            <input type="hidden" name="TermUrl" value="http://localhost:40405/test/3DTermURL.aspx?PayID=dc67820e15f049c9b6c1f0420729da8a&TransID=20180524-162741-084&MID=gustav">
            <input type="hidden" name="MD" value="Optional merchant session data">
        </form>
    </body>
</html>

Once the authentication has been completed or the cancelled by the cardholder the ACS will redirect the cardholder through the cardholder's browser to the TermURL as specified in the initail payment request.

Note
The Payer Authentication Response (`PaRes`) will be transferred via HTTP POST method while `MID`, `PayID` and `TransID` are sent in the HTTP query string (i.e. HTTP GET).

Data Elements transferred to the `TermURL`

Key

Format

Condition

Description

1

MID

ans..30

M

Merchant identifier assigned by Computop.

2

PayID

ans32

M

Payment/transaction identifier assigned by Computop.

3

TransID

ans..64

M

Transaction identifier supplied by the merchant. Shall be unique for each payment.

Table Filter

default	Beschreibung
isFirstTimeEnter	false
hideColumns	true
sparkName	Sparkline
hidePane	true
datepattern	dd M yy
id	1624531020514_-1753927259
worklog	365\|5\|8\|y w d h m\|y w d h m
isOR	AND
separator	Point (.)
order	0

Multiexcerpt

MultiExcerptName	dataelements_termurl

Table Transformer

dateFormat	dd M yy
export-word	false
show-source	false
export-csv	false
id	1624531020515_-1046994414
transpose	false
worklog	365\|5\|8\|y w d h m\|y w d h m
separator	.
export-pdf	false
sql	SELECT * FROM T*

Table Excerpt Include

static	true
name	MID
page	MID
type	page

Table Excerpt Include

static	true
name	PayID
page	PayID
type	page

Table Excerpt Include

static	true
name	TransID
page	TransID
type	page

Key	Format	CND	Description	Beschreibung

4


PARes	--	M	The PARes (Payer Authentication Response) message sent by the ACS in response to the PAReq regardless of whether authentication is successful

.

Die vom ACS gesendete PARes-Nachricht (Payer Authentication Response) in Reaktion auf die PAReq ungeachtet dessen, ob dit Authentisierung erfolgreich ist

Authorization

In order to authorize an 3DS 1.0 authenticated payment you must POST the parameter as listed in the table below unencrypted to https://www.computop-paygate.com/

Multiexcerpt include

SpaceWithExcerpt	EN
MultiExcerptName	BaseURL
PageWithExcerpt	Wording

direct3d.aspx. The response always is encrypted (Len + Data).

Request Elements

Key

Format

Condition

Description

1

MerchantID

ans..30

M

Merchant identifier assigned by Computop.

2

PayID

ans32

M

Payment/transaction identifier assigned by Computop.

3

TransID

ans..64

M

Transaction identifier supplied by the merchant. Shall be unique for each payment.

Table Filter

default	Beschreibung
isFirstTimeEnter	false
hideColumns	true
sparkName	Sparkline
hidePane	true
datepattern	dd M yy
id	1624531066201_-1753927259
worklog	365\|5\|8\|y w d h m\|y w d h m
isOR	AND
separator	Point (.)
order	0

Multiexcerpt

MultiExcerptName	authorization_request

Table Transformer

dateFormat	dd M yy
export-word	false
show-source	false
export-csv	false
id	1624531066203_-1046994414
transpose	false
worklog	365\|5\|8\|y w d h m\|y w d h m
separator	.
export-pdf	false
sql	SELECT * FROM T*

Table Excerpt Include

static	true
name	MerchantID
page	MerchantID
type	page

Table Excerpt Include

static	true
name	PayID
page	PayID
type	page

Table Excerpt Include

static	true
name	TransID
page	TransID
type	page

Key	Format	CND	Description	Beschreibung

4


PAResponse	--	M	The PARes (Payer Authentication Response) message sent by the ACS

.

Die vom ACS gesendete PARes-Nachricht (Payer Authentication Response)

Response Elements

Table Filter

default	Beschreibung
isFirstTimeEnter	false
hideColumns	true
sparkName	Sparkline
hidePane	true
datepattern	dd M yy
id	1624531108491_1964953942
worklog	365\|5\|8\|y w d h m\|y w d h m
isOR	AND
separator	Point (.)
order	0

Multiexcerpt

MultiExcerptName	authorization_response

Table Transformer

dateFormat	dd M yy
export-word	false
show-source	false
export-csv	false
id	1624531108493_518331422
transpose	false
worklog	365\|5\|8\|y w d h m\|y w d h m
separator	.
export-pdf	false
sql	SELECT * FROM T*

Table Excerpt Include

static	true
name	MID
page	MID
type	page

Table Excerpt Include

static	true
name	PayID
page	PayID
type	page

Table Excerpt Include

static	true
name	XID
page	XID
type	page

Table Excerpt Include

static	true
name	TransID
page	TransID
type	page

Key	Format	CND	Description	Beschreibung

Response Elements

KeyFormatConditionDescription1

MID

ans..30

M

Merchant identifier assigned by Computop.

2

PayID

ans32

M

Payment/transaction identifier assigned by Computop.

3

XID

ans64

M

ID assigned by Paygate for the operation performed on the payment.

4

TransID

ans..64

M

Transaction identifier supplied by the merchant. Shall be unique for each payment.

5


Status	a..20	M

Staus

Status of the transaction.

Values accepted:

Authorized
OK (Sale)
FAILED

6

Status der Transaktion.

Zulässige Werte:

Authorized
OK (Sale)
FAILED

Description

ans..1024

M

Textual description of the code

.

Textliche Beschreibung des Codes

Table Excerpt Include

static	true
name	Code
page	Code
type	page

Key	Format	CND	Description	Beschreibung

7

Code

n8

M

Paygate response code.

8


card	JSON	C	Card data

.

9

Kartendaten
ipInfo	JSON	O	Object containing IP information

.

10

Objekt mit IP-Informationen
threeDSData	JSON	M	Authentication data

.

Authentisierungsdaten

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Key

3DS 1.0 Authentication

Data Elements transferred to the `TermURL`

Authorization

Request Elements

Response Elements

Response Elements

Paygate

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Old Version 1

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Key

3DS 1.0 Authentication

Data Elements transferred to the TermURL

Authorization

Request Elements

Response Elements

Response Elements

Data Elements transferred to the `TermURL`