googlearchive / androidpay-quickstart

Android Pay API Quickstart
Apache License 2.0
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androidpay-quickstart

Project status

status: inactive

This project is no longer actively maintained, and remains here as an archive of this work.

The Android Pay API has been superseded by the Google Pay API. Please see android-quickstart for an up-to-date sample.

Overview

This sample demonstrates basic usage of the Android Pay API. For more information, visit the following link:

https://developers.google.com/android-pay/android/tutorial

Requirements

Run the Android SDK Manager (android sdk) and ensure that you have the following installed:

Generating a Public/Private Key Pair

In order to run this sample with the 'direct integration' model (as opposed to a processor gateway token) you will need to generate a public/private key pair and put the base64-encoded public key into the resources directory.

In order to generate a suitable key, execute the provided genkey.sh script. You should see some output like this:

Private-Key: (256 bit)
priv:
    7c:a5:b4:31:fa:ec:26:88:65:77:76:0d:c8:6f:ec:
    e1:a8:01:1d:4c:ff:04:87:4d:05:ca:a2:a1:30:49:
    2a:09
pub:
    04:d8:54:1d:f6:0d:b8:a6:fd:ca:ff:e9:ef:7d:ed:
    9a:2c:ff:fd:c1:ee:82:e0:6c:09:3d:d8:2f:ef:de:
    72:4e:0b:2a:56:2a:c9:d9:96:59:09:5a:08:ab:09:
    a8:f1:42:49:40:95:e3:3c:0c:69:67:9f:15:86:56:
    49:82:18:69:26
ASN1 OID: prime256v1

...

Taking the value of the the pub key and as $PUBLICKEY, run the following:

echo $PUBLICKEY | xxd -r -p | base64

Put the result of that commmand into app/src/main/res/values/ids.xml:

<resources>
    <string name="public_key">REPLACE_ME</string>

    ...

</resources>

The genkey.sh script uses openssl to generate the key and generates a .pem file containing the key for future reference. Consult the script for more details on how the openssl command is invoked.