clearhaus / pedicel-pay

Apple Pay CLI tooling and Ruby library.

PedicelPay

A tool to handle the server and client side of Apple Pay. It consist of both a CLI part and a Ruby library e.g. for testing purposes.

Usage (CLI)

Setup a backend and a client

1. Generate a backend (Apple side of Apple Pay):

    $ pedicel-pay generate-backend
   

   Creates these files:

   • ca.key
   • ca-certificate.pem
   • intermediate.key
   • intermediate-certificate.pem
   • leaf.key
   • leaf-certificate.pem

2. Generate a client (merchant side of Apple Pay):

    $ pedicel-pay generate-client
   

   Creates client.key and client-certificate.pem.

Create tokens

$ pedicel-pay generate-token \
    --pan=4111111111111111 \
    --expiry=$(date -d 'next year' +%y%m%d) \
    --amount=1234 \
    --currency=978

Specify some values, sample remaining:

$ pedicel-pay generate-token \
    --pan=4111111111111111 \
    --sample

Decrypt tokens

$ echo $TOKEN | pedicel-pay decrypt-token

Usage (Ruby)

Setup a backend and a client

backend = PedicelPay::Backend.generate
client = backend.generate_client

Create tokens

Sample data

token = PedicelPay::Token.new.sample
backend.encrypt_and_sign(token, recipient: client)
puts token.to_json

or decide:

token = PedicelPay::Token.new

token.unencrypted_data.pan = '4111111111111111'
token.unencrypted_data.currency = '987' # EUR
token.unencrypted_data.amount = 1234 # 12.34 EUR
token.sample # Sample remaining.

backend.encrypt_and_sign(token, recipient: client)
puts token.to_json

The JSON formatted Payment Token; refer to https://developer.apple.com/library/content/documentation/PassKit/Reference/PaymentTokenJSON/PaymentTokenJSON.html

Decrypt tokens

Using the client (if it knows the CA cert):

client.decrypt(JSON.parse(token.to_json))

To decrypt the token data by hand, use these values:

• The client's secret key client.key.
• The merchant ID client.merchant_id or client's certificate (containing the merchant ID) client.certificate.
• Use backend.ca_certificate as Apple Root CA G3 certificate.