Signing in securely using a managed device conditional access serial number (caSN)

Overview

OpenTV Platform allows managed devices (such as STBs) to sign in using a device’s conditional access serial number (caSN).

This method uses the Device Authentication Services (DAS) to provide an additional layer of security that prevents unauthorised access using (for example) a shared serial number.

Procedure

The client app on the managed device performs the following main steps:

1. Call DAS to generate an authentication challenge.

2. Sign in using the IAS dasSignOnByCasn endpoint, passing in:

   • The device’s caSN

   • The authentication challenge received from DAS

   • The DRM scheme

   See Signing in securely using dasSignOnByCasn.