
Express Checkout Integration Guide August 7, 2012 51
Obtaining API Credentials
Creating an API Certificate
6. Save the values for API Username and API Password for later use.
7. Click Download Certificate and save the file.
8. Rename this file to something familiar, such as paypal_live_cert.pem.
It is not necessary to keep the .txt file extension. Be sure to remember where you save the
file.
After Completing This Task:
If you use the PayPal SDK for Java, the PayPal SDK for .NET, or the PayPal SDK for
Classic ASP, you must encrypt your certificate in PCKS12 format.
If you use the PayPal SDK for .NET or Classic ASP, you must take additional steps to
import the certificate.
Encrypting Your Certificate Into PKCS12 Format
PayPal SDKs for Java, .NET, and Classic ASP require the additional task of encrypting your
certificate into PKCS12 format. Perform this task for both your Sandbox certificate and your
live certificate.
NOTE: This task is not required if you are using the PayPal SDK for PHP.
The certificate you download from PayPal is in PEM format. It contains both your public
certificate and the associated private key. Although the PEM certificate is not human readable,
the file is not encrypted.
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