PayPal Express Checkout - 2012 Guía de usuario descargar pdf (Pagina 52)

Obtaining API Credentials

Creating an API Certificate

52 August 7, 2012 Express Checkout Integration Guide

The steps in this task require you to use the OpenSSL encryption tool. On Unix, this tool is

typically installed for you. On Windows, you typically must download OpenSSL yourself; in

this case, accept the defaults when you install OpenSSL and add OpenSSL to the path.

NOTE: In Windows, the Path is a System environment variable, which is accessible from the

Advanced tab when you right-click on your My Computer icon and view its

properties. Do not confuse the System variables path with with the User variables

path. Add OpenSSL to the System variables path.

To encrypt your certificate into PKCS12 format:

1. Use OpenSSL to create the PKCS12-format certificate from the downloaded PEM-format

certificate.

openssl pkcs12 -export -in

download.txt -inkey download.txt -out

certificate.p12

2. At the prompt, enter an Export Password for the certificate.

3. Save your Export Password.

Importing Your Certificate

For either PayPal SDK for .NET or Classic ASP, you must download and execute the

Windows HTTP Services Certificate Configuration Tool, WinHTTPCertCfg. If you use the

.NET platform and develop with the PayPal SDK for .NET, you need to take a few more steps

before your certificate can be used.

You must use WinHTTPCertCfg to import the certificate into the Windows Certificate Store

and grant access to your private key to the user executing your web application. This is a

Windows requirement, not a PayPal requirement. You can download WinHTTPCertCfg from

the Microsoft Windows Server 2003 Resource Kit Tools page

(http://www.microsoft.com/downloads/en/details.aspx?familyid=9d467a6

9-57ff-4ae7-96ee-b18c4790cffd&displaylang=en). For Microsoft documentation,

see

WinHttpCertCfg.exe, a Certificate Configuration Tool.

To import a certificate:

1. Execute WinHTTPCertCfg to import the certificate into the Windows Certificate Store

and grant access to your private key to the party executing your web application.

WinHttpCertCfg -i

certificate.p12 -p privateKeyPassword -c

where

certificate is your PKCS12 certificate and privateKeyPassword is your Export

Password.

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PayPal Express Checkout - 2012 Guía de usuario Pagina 52