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Gateway Developer Guide and Reference 31 July 2012 23
Introducing the Gateway Checkout Solutions
About Security
1
Secure Token
The secure token stores request transaction data on the Gateway server. It eliminates the need
to resend the parameter data for display in a hosted checkout page where the data might be
subject to compromise.
Hosted Checkout Pages
The Gateway enables the use of hosted checkout pages, which help you achieve PCI
compliance. The hosted checkout pages enable you to pass transaction data securely to the
server and to collect credit card acceptance data.
NOTE: You are required to use hosted pages with PayPal Payments Advanced and Payflow
Link.
The following figure shows the transaction flow when using hosted pages and a secure token.
Numbers in the figure correspond to the numbered comments below:
1. The customer clicks Buy to purchase merchandise on your website.
2. You request a secure token by passing a token ID to the Gateway server.
3. The Gateway server returns the secure token and your token ID to your website.
4. You submit the secure token and token ID in an HTTP post to pages hosted on the Gateway
server and redirect the customer’s browser to the hosted pages.
5. The Gateway server uses the secure token to retrieve the amount and other transaction data.
The customer submits their credit card number, expiration date, and other sensitive data
directly to the host pages rather than to your website, easing your PCI compliance
requirements.
- Gateway Developer 1
- Guide and Reference 1
- Related Documentation 11
- Intended Audience 11
- Revision History 15
- Introducing the Gateway 19
- Checkout Solutions 19
- Gateway Product Details 20
- About Security 22
- Secure Token 23
- Hosted Checkout Pages 23
- Supported Payment Types 25
- Recurring Billing Service 26
- Pages: Transparent Redirect 28
- Configuring Hosted Checkout 31
- Customize 34
- Variables 36
- Silent Posts 38
- Payflow SDK 41
- Host URL Addresses 42
- About Name-Value Pairs 43
- Payflow Connection Parameters 44
- User Parameter Data 45
- Sale Transaction Example 46
- Submitting Credit Card 47
- Transactions 47
- About Credit Card Processing 48
- Credit Card Features 48
- Core Credit Card Parameters 51
- EXPDATE 60
- PNREF value: 62
- Credit 66
- TRXTYPE 68
- TENDER 68
- Submitting Void Transactions 72
- Using Card Security Code 75
- Testing Transactions 77
- PayPal Processor 82
- Result Values Based On Amount 83
- Card Security Code Results 92
- Transaction Responses 100
- Transaction Parameters 103
- Internet Transaction Data 104
- xxx-xxx-xxxx (US numbers) 105
- DEN to LAX 107
- LAX to SFO 107
- SFO to DEN 107
- Parameters 110
- AVS Parameters 114
- Y (default) 116
- F = First occurrence 119
- Other Parameters 125
- CA = California, USA 126
- NS = Nova Scotia, Canada 126
- COS = Colima Mexico 126
- TeleCheck Electronic Check 129
- Processing 129
- NFTF Guidelines 131
- TeleCheck Parameters 132
- Required TeleCheck Parameters 133
- XX – State code 134
- Response Code Values 137
- Adjustment Code Values 138
- Authorization – Sales Consent 139
- Language Sample for PPD 141
- Submitting Purchasing Card 143
- Accepted BIN Ranges 144
- Supported Transaction Types 144
- Avoiding Downgrade 145
- Edit Check 145
- Transaction Processing 153
- starting at 0 157
- Parameter String 160
- Heartland Level 2 Parameters 160
- Litle Level 2 Parameters 166
- Litle Level 3 Parameters 167
- SecureNet Level 2 Parameters 181
- ) and unit price 186
- ) fields 186
- Vantiv Purchasing Parameters 193
- WorldPay Level 2 Parameters 194
- WorldPay Level 3 Parameters 196
- VERBOSITY: Viewing Processor 199
- Specific Transaction Results 199
- ISO Country Codes 201
- Codes Used by FDMS South Only 203
- Visa Country Codes 210
- Units of Measure 217
- PayPal Acquirer 225
- Moneris Solutions 227
- Payflow Link Migration 229
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