Paygate interface

Definitions

Data formats

Format

Description

a

alphabetical

as

alphabetical with special characters

n

numeric

an

alphanumeric

ans

alphanumeric with special characters

ns

numeric with special characters

bool

boolean expression (true or false)

3

fixed length with 3 digits/characters

..3

variable length with maximum 3 digits/characters

enum

enumeration of allowed values

dttm

ISODateTime (YYYY-MM-DDThh:mm:ss)


Abbreviations

Abbreviation

Description

Comment

CND

condition


M

mandatory

If a parameter is mandatory, then it must be present

O

optional

If a parameter is optional, then it can be present, but it is not required

C

conditional

If a parameter is conditional, then there is a conditional rule which specifies whether it is mandatory or optional


Notice: Please note that the names of parameters can be returned in upper or lower case.


Generation of PBAN or PCNr

Some non-PCI DSS-compliant merchants need to store IBAN or CCNr in advance (without making a payment) for future payments.

As a solution a endpoint, which receives IBAN/CCNr and returns PBAN/PCNr (using CT tokenization function), was introduced.

Requirements 

  1. New endpoint getToken.aspx was introduced.
  2. Basic IBAN check and CCNr check (validation of check sum) should be performed at generating token (PBAN or PCNr).
  3. The Blacklist is not checked at token generation. Blacklist will be checked when a merchant sends a payment request using the token.

Authentication

Blowfish encryption and HMAC verification as for standard credit card interfaces in Paygate.

Calling the interface

In order to generate a PBAN or PCNr from submitted data, please use the following URL:

 

Notice: For security reasons, Computop Paygate rejects all payment requests with formatting errors. Therefore, please use the correct data type for each parameter.

The following table describes the encrypted payment request parameters:

KeyFormatCNDDescription

MerchantID

ans..30

M

MerchantID, assigned by Computop. Additionally this parameter has to be passed in plain language too.

KeyFormatCNDDescription
TransID

ans..64

MTransactionID provided by you which should be unique for each payment

Key

Format

CND

Description

AccountNumber

ans..64

M

IBAN or CCNr (based on parameter AccountType)

AccountType

a4

O

Possible values: "IBAN", "CCNr"

Default value: "IBAN"

Parameters for generating a PBAN or PCNr


The following table describes the result parameters with which the Computop Paygate responds to your system

(info) pls. be prepared to receive additional parameters at any time and do not check the order of parameters

(info) the key (e.g. mid, RefNr) should not be checked case-sentive

KeyFormatCNDDescription

mid

ans..30

M

MerchantID, assigned by Computop

KeyFormatCNDDescription
PayID

an32

M

ID assigned by Paygate for the payment, e.g. for referencing in batch files as well as for capture or credit request.

Key

Format

CND

Description

Status

a..20

MStatus of the request. Possible values: "OK", "FAILED"
Description

ans..1024

MFurther details in the event that the request is not successful

KeyFormatCNDDescription
Code

an8

M

Error code according to Paygate Response Codes (A4 Error codes)

Key

Format

CND

Description

PseudoAccountNumberans..64M

PBAN or PCNr

AccountTypea4M

Possible values: "PBAN", "PCNr"

Response parameters for generating a PBAN or PCNr