We often receive questions on how to configure content key via a key seed for PlayReady license services. However, Azure Media Services doesn’t store Key Seed into the system, here is why and how you could configure keys using a key seed even we don’t store it.
How Key Seed is being used?
Key seed is a very popular solution for years. When you statically encrypt your content for PlayReady, you could feed in your encryptor with Key ID and Key Seed. The encryptor will compute content key based on the key ID and Key Seed, and encrypt the content with this derived content key value. Key ID will be carried in the manifest. Key Seed will be stored with license server. Read more here