This recipe shows how to set up your Pass type in Apple's provisioning Portal and generate the required files for code signing.
To get started with creating your own Pass, you will need a paid iOS developer account. If you intend to present the Passes within an existing iOS app, you will need access to the iOS developer account that publishes this existing app. In addition, many of these steps require apps and utilities only available on OSX, Keychain Access for example, which is used in the certificate creation process. Therefore, these steps should be undertaken using a Mac, running OSX.